El Dorado County, CA Building Permits, Zoning & Septic Rules

Unincorporated El Dorado County, California requires a building permit for major renovations, new construction, electrical, plumbing and structural work, issued by the county's Building Division¹². The county's own Title 130 zoning ordinance covers all unincorporated land outside a short list of exemptions, with lot sizes, setbacks and heights that vary by district³⁴. Septic systems need a county-issued permit through Environmental Management, after a percolation test and site evaluation⁵⁶. Soils here are a real constraint: well under 1% of El Dorado County's soils rate free of severe limits for a conventional drain field, and the Lake Tahoe Basin runs under its own separate permit process⁷.

At a glance

Building permit: Required for major renovations, new construction, electrical and plumbing work¹²
Zoning: Countywide under Title 130; lot sizes and setbacks vary by district³⁸
Septic permit: County-issued after a percolation test and site evaluation⁵⁶
Owner-builder: Allowed as Owner-as-Worker, Owner-as-Contractor or Owner-as-Employer⁹¹⁰
Tiny home: Under 400 sq ft on a permanent foundation, built to Title 24 code¹¹
Manufactured home: Allowed by right as a primary or accessory home in zones that permit detached homes¹²
RV living: Not allowed as a permanent residence; unpermitted occupancy over 30 days is unlawful¹³¹⁴
Well permit: Required for construction, destruction, deepening or repair of a well¹⁵

Who to call

Building permits

El Dorado County Building Division

Building permits and inspections for unincorporated El Dorado County; a separate South Lake Tahoe office covers the Tahoe Basin

(530) 621-5315

2850 Fairlane Court, Placerville, CA 95667

Online permits →

Building permits

El Dorado County Building Division

The county's own explanation of the building-permit process, including permit expiration

Planning & zoning

El Dorado County Planning Division

Zoning, rezoning, subdivisions and site-plan review for unincorporated El Dorado County

530-621-5355

[email protected]

Building C, 2850 Fairlane Court, Placerville, CA 95667

Septic permits

El Dorado County Environmental Management Department

Septic (private sewage disposal) permits, food-facility permits and the county's Water Well Program for unincorporated El Dorado County

(530) 621-5300

[email protected]

2850 Fairlane Court, Building C, Placerville, CA 95667

Contact details are copied from each office’s official page and were checked against it on September 29, 2026.

Do you need a building permit in El Dorado County, California?

Yes. Major renovations, new construction, electrical work, plumbing, and structural changes typically require a permit in unincorporated El Dorado County, and construction cannot start before that permit is approved¹². Inspections follow, and can include foundation, framing, plumbing, electrical, sheetrock and final inspections depending on the project's scope¹⁶. It is unlawful to occupy a new structure, trailer, coach or manufactured home until the final inspection is approved and a Certificate of Occupancy is issued, and before that approval the county checks that the site and driveway meet SRA Fire Safe Regulations with sign-off from the local fire district¹⁷. A permit is good for two years from issuance and becomes void if the work is not finished with a final inspection and certificate of occupancy by then, though permits inside the Tahoe Basin follow the Tahoe Regional Planning Agency's own expiration rules instead¹⁸.

Who is the El Dorado County building department, and how do you reach them?

El Dorado County's Building Division issues building permits and conducts inspections for the unincorporated county¹¹⁹. Reach the Placerville office at 2850 Fairlane Court, Placerville, CA 95667, phone (530) 621-5315, with an alternate line at (530) 621-5377 for inspections¹⁹. Walk-ins run 8 am to noon Monday through Friday except Wednesday, when walk-in hours shift to 9 am to noon, with appointments only from 1 to 4 pm¹⁹. If your land is in the Lake Tahoe Basin, use the South Lake Tahoe office instead, at 924 B Emerald Bay Road, South Lake Tahoe, CA 96150, phone (530) 573-3330¹⁹. The Planning Division, which handles zoning and rezoning, shares the same Placerville building and can be reached at 530-621-5355²⁰.

Does El Dorado County have zoning?

Yes. El Dorado County's Title 130 zoning ordinance applies to all lands within the unincorporated county except a short list of exemptions for federal, state, tribal and certain utility activities³⁴. Incorporated cities such as Placerville have their own separate zoning under their own municipal codes, so Title 130 does not govern land inside city limits²¹. Minimum lot sizes vary widely by district: interior lots run from 6,000 square feet in the R1 district up to 1, 2 or 3 acres in the R1A, R2A and R3A districts, and 5 or 10 acres in the RE district, with similar variation in front, side and rear setbacks and maximum building height by district²²²³²⁴. In the Tahoe Basin's Meyers area, detached single-family homes also face a separate 30% lot-coverage cap under the TRPA Code²⁵. Splitting a parcel is a discretionary, publicly heard process: four parcels or fewer needs a Parcel Map Tentative application, and five or more needs a Subdivision Map Tentative application²⁶²⁷.

How do septic permits work in El Dorado County?

Septic systems in El Dorado County go through the county's Environmental Management Department under its Private Sewage Disposal System Ordinance, not a separate state office⁵⁶. You need a percolation test before a site evaluation report can be completed, then a site approval report, before the county will accept your sewage-disposal-system permit application; the permit is issued only to the owner or an authorized representative⁶. Reach Environmental Management's Placerville office at 2850 Fairlane Court, Building C, phone (530) 621-5300, or the South Lake Tahoe office at 924 B Emerald Bay Rd., phone (530) 573-3450²⁸. Statewide, California's Water Boards oversee the policy that local programs like El Dorado's must follow²⁹. Soils are a serious limiting factor here: well under 1% of El Dorado County's soils rate free of severe limits for a conventional drain field in the USDA soil survey, in a county where only about 12% of the land sits at a gentle enough slope to make site work easy, so expect the county to lean on special-design systems in a lot of places⁷³⁰.

Can you live in an RV or tiny home on your land in El Dorado County?

Not as a permanent home. California treats RVs as not intended for permanent occupancy, and unless a local ordinance says otherwise, an RV can generally only be occupied in a mobilehome park or special-occupancy park¹³. El Dorado County's own zoning backs that up: no residential zone district allows camping by right or by conditional use permit, and placing or occupying an unpermitted vehicle or temporary structure for more than 30 days is unlawful unless specifically authorized¹⁴. A genuine tiny home is a different story: the county describes tiny homes under 400 square feet, built on a permanent foundation and meeting Title 24 building codes, as suited to long-term housing, subject to the same zoning, building, fire and septic requirements as any other home¹¹. A manufactured home can also be a permanent primary or accessory dwelling by right in any zone that already permits a detached single-family home, once it meets the county's foundation, utility, fire and septic standards¹².

Building a home in El Dorado County: the steps, in order

Confirm your parcel's zoning district and minimum lot size with the Planning Division at 530-621-5355 before you buy; interior lot minimums run from 6,000 square feet up to 3 acres or more depending on the district²⁰²².
If you're creating a new parcel, plan for a discretionary, publicly heard review: four parcels or fewer needs a Parcel Map Tentative application, five or more needs a Subdivision Map Tentative application²⁶.
Start your septic process early: get a percolation test, then a site evaluation and site approval report, before Environmental Management, (530) 621-5300, will accept your sewage-disposal permit application⁶²⁸.
If you need a well, apply through Environmental Management; permits are required for construction, destruction, deepening or repair, and the completion report is due within 60 days of finishing¹⁵.
Apply for your building permit at the Building Division, (530) 621-5315, or the South Lake Tahoe office if you're in the Tahoe Basin; half the building permit fee and all of the planning fee are due at application, with the remainder due at issuance¹⁹³¹.
Line up inspections as you go, including foundation, framing, plumbing, electrical, sheetrock and final, and don't cover any work before its inspection¹⁶.
Get your final inspection approved and your Certificate of Occupancy issued before anyone moves in; occupying the home earlier is unlawful, and the county also checks that your driveway meets SRA Fire Safe Regulations first¹⁷.
Keep an eye on the clock: your permit becomes void if the work isn't finished, inspected and issued a certificate of occupancy within two years, unless you're in the Tahoe Basin, where TRPA's own expiration rules apply instead¹⁸.

What to check before you buy land in El Dorado County

Zoning and lot size: ask the Planning Division which of the county's residential zones covers your parcel, since minimum lot size alone ranges from 6,000 square feet to 3 acres or more²⁰²². Soils: well under 1% of El Dorado County's soils rate free of severe limits for a conventional septic drain field, and only about 12% of the county's land sits at a gentle enough slope to make site work easy, so budget for engineering⁷³⁰. Flood: the county regulates flood-hazard-area development under its Flood Damage Prevention Ordinance, consistent with FEMA, and flood-zone status is parcel-specific, so look up your parcel before you buy³². Water: a well needs a county permit for construction, destruction, deepening or repair, and completion reports are due within 60 days¹⁵. Short-term rentals: if you're counting on income from renting the place out, a Vacation Home Rental permit is required for any stay of 30 days or less outside South Lake Tahoe and Placerville's own city limits, and an inactive permit means you cannot rent short-term at all³³. Taxes: El Dorado County's typical effective property tax rate is about 0.7%, with a median annual bill near $4,510³⁴³⁵.

Watch-outs

El Dorado County runs a separate South Lake Tahoe office for the Tahoe Basin, and permits there follow the Tahoe Regional Planning Agency's own rules, including its own permit-expiration timeline instead of the county's two-year limit¹⁹¹⁸.
No residential zone in El Dorado County allows camping or an unpermitted vehicle to be occupied for more than 30 days; don't plan on living in an RV on raw land without specific authorization¹⁴.
El Dorado County does not publish one countywide minimum dwelling size on its own pages; ask the Planning Division for your specific zoning district before assuming a small structure is allowed as a home²⁰.

Sources

Written September 29, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.

How El Dorado County scores

Seclusion30100% ev.

Self-Sufficiency57100% ev.

Admin Boringness41100% ev.

Durability33100% ev.

Property Autonomy56100% ev.

Carry Cost42100% ev.

Evidence strength: 100%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$662kTypical home

0.7%Property tax

$11,768Land / acre

45.4"Annual rain

33.6% of yrsSevere drought

12.5 / yr (+8.4)Mid-century 100°F days

59.2 daysMid-century dry spell

2.71" (+5.4%)Mid-century 1-day rain

1.08×Wildfire change factor

100%Forward climate coverage

$2,306Home insurance / yr

7.9% / yrInsurance growth

4.1%Nonrenewal rate

county median (2+ published ZIPs)Insurance basis

2,960,210People within 2 hr

84,443Radius comparison (15 mi)

112.5People / sq mi

49.4%Federal land

12.2%Land at 15% slope or less

0.7%Septic soil without severe limits

6,280 acWorkable land screen

77.2%Wooded land

80.6 tonsBiomass / forest ac

54.3°FAvg temp

Answers from the rulebook for El Dorado County

What the ordinances and state agencies actually say — one answer per question, each quoted from the official source and independently re-checked.

El Dorado County rules

Building permitRequired
Major renovations, new construction, electrical work, plumbing, and structural changes in unincorporated El Dorado County.
- The County guidance states these project types typically require permits.
- Construction cannot begin before the permit is approved.
- Information on the page is exclusive of the Tahoe Basin; special conditions apply to the Tahoe Basin.
“Major renovations, new construction, electrical work, plumbing, and structural changes typically require permits.”
What's Required and How to Submit: ↗Re-checked Sep 24, 2026
Owner-builder exemptionConditional
Owner-builder construction permits administered by the El Dorado County Building Safety Division.
- The County recognizes Owner-as-Worker, Owner-as-Contractor, and Owner-as-Employer categories.
- For Owner-as-Worker, the owner personally performs the construction work, the permit is issued in the owner's name, and the owner is personally responsible for construction management, knowledge, workmanship, and completion.
- For Owner-as-Contractor, the owner acts as general contractor and hires California-licensed subcontractors; the County warns that using unlicensed contractors removes the protections described in the guidance.
- For Owner-as-Employer, the owner pays an unlicensed individual to perform construction work with a total value of $500 and is responsible for employment requirements, supervision, performance, safety, and worker welfare.
- The owner-builder application information form must be completed by the property owner even when an agent is authorized, and the permit will not be issued until the signature is verified by counter staff.
unlicensed individual construction work total value: 500 USD (Owner-as-Employer category described by the County)
“Owner-as-Worker is a type of Owner-Builder where you personally perform the construction work, the permit is issued in your name”
Application Information (Part 4) ↗Re-checked Sep 24, 2026
InspectionsRequired
Building construction projects in unincorporated El Dorado County, with inspection types determined by project scope.
- Inspections can include foundation, framing, plumbing, electrical, sheetrock, and final inspections depending on project scope.
- If a project requires a grading permit, grading inspections must be completed and the initial grading work cleared before building construction inspections can take place.
- A final inspection is requested once construction is complete.
“Inspections can include foundation, framing, plumbing, electrical, sheetrock and final inspections, depending on the project scope.”
What's Required and How to Submit: ↗Re-checked Sep 24, 2026
Certificate of occupancyRequired
Occupancy of a building structure, trailer, coach, or manufactured housing unit under El Dorado County Building Services requirements.
- The final inspection must be approved before occupancy.
- All required utilities must be installed and functional.
- Road encroachment installation must be complete and meet all requirements of the El Dorado County Code.
- Before Development Services Department approval, the building site and driveways must meet the SRA Fire Safe Regulations with final occupancy approval from the local fire district.
- The policy states that it is unlawful to occupy the covered structure or unit until the final inspection has been approved and a Certificate of Occupancy issued.
- The County Building guidance states its information is exclusive of the Tahoe Basin and that special conditions apply there.
“until the final inspection has been approved and a Certificate of Occupancy issued.”
Minimum Requirements for Occupancy ↗Re-checked Sep 24, 2026
County-wide zoningPresent (with conditions)
El Dorado County Title 130 zoning regulation for lands in the unincorporated area of the county.
- The ordinance applies to all lands within the unincorporated area except listed exemptions.
- Exemptions include federal activities on federally owned or leased land; state activities on state-owned or leased land; activities of local agencies as provided in California Government Code Sections 53090 et seq.; certain water and electrical energy facilities under Government Code Section 53091; tribal lands not subject to county jurisdiction; and existing or future state-law preemptions of local land-use authority.
- For areas covered by an adopted specific plan, the specific plan zones, development standards, and implementing ordinance supersede Title 130; if the specific plan does not address an issue, Title 130 applies.
- The ordinance states that it was adopted on 8/14/2018 and amended 10/16/2025.
“The provisions of this Title shall apply to all lands within the unincorporated area of the County of El Dorado”
El Dorado County Zoning Ordinance ↗Re-checked Sep 24, 2026
Local zoningVaries (with conditions)
Aggregate local zoning across El Dorado County: County Title 130 regulates unincorporated areas, while incorporated municipalities may be governed by their own local land-use authorities and ordinances.
- The cited county zoning ordinance expressly applies to unincorporated areas, not all incorporated municipalities.
- Specific plans may supersede Title 130 within their adopted areas.
- The county ordinance contains exemptions for governmental, tribal, and state-law-preempted activities.
“The City's Zoning Ordinance (Municipal Code Title 10) may be accessed through Sterling Codifier”
Zoning Ordinance Updates - El Dorado County ↗Re-checked Sep 24, 2026
Zoning districtsPublished (with conditions)
Zoning districts and zoning ordinance materials for unincorporated El Dorado County.
- The County publishes Title 130 as its zoning ordinance through the County Zoning page and links to the ordinance code.
- The County zoning FAQ identifies parcel-specific zoning designations and directs users to zoning chapters for Agricultural/Rural/Resource, Commercial, Industrial/R&D, Residential, and Special Purpose zones.
- The County states that allowed uses may be permitted by right, conditional, temporary, minor, or administrative permit, or not allowed.
- Ordinance amendments may have separate adoption and effective dates; the County page identifies 2026 amendments adopted August 18 or August 25, 2026, with effective dates September 16 or September 23, 2026.
“El Dorado County Ordinance Code Municode: Title 130 - Zoning”
Zoning ↗Re-checked Sep 24, 2026
Minimum lot sizeDistrict specific (with conditions)
Residential zoning districts in unincorporated El Dorado County, including RM, R1, R20K, R1A, R2A, R3A, and RE.
- The standards apply unless a variance is obtained or standards are modified through a Development Plan permit.
- Interior-lot minimums are RM: 6,000 or 2,000 square feet; R1: 6,000 square feet; R20K: 20,000 square feet; R1A: 1 acre; R2A: 2 acres; R3A: 3 acres; RE: 5 acres or 10 acres as designated.
- Corner-lot minimums are RM: 7,500 or 3,500 square feet; R1: 7,500 square feet; R20K: 20,000 square feet; R1A: 1 acre; R2A: 2 acres; R3A: 3 acres; RE: 5 acres or 10 acres as designated.
- Lots created for access roads, parking areas, common-area landscaping, and open-space purposes are exempt from the area and width standards of the respective zones.
- Smaller minimum lot area or lot width is allowed with attached or small-lot-design detached units.
RM interior minimum lot size: 6,000 or 2,000 sq ft · R1 interior minimum lot size: 6000 sq ft · R20K interior minimum lot size: 20000 sq ft · R1A interior minimum lot size: 1 acre · R2A interior minimum lot size: 2 acres · R3A interior minimum lot size: 3 acres · RE interior minimum lot size: 5 or 10 acres (as designated)
“Minimum Lot Size for Interior Lot 6,000 or 2,000 sq ft 6,000 sq ft 20,000 sq ft 1 acre 2 acre 3 acre 5 acres or 10 acres as designated”
El Dorado County Zoning Ordinance, Title 130 ↗Re-checked Sep 24, 2026
SetbacksDistrict specific (with conditions)
Building setbacks for residential zoning districts in unincorporated El Dorado County.
- Minimum building setbacks apply by zoning district and may be modified by variance or Development Plan permit.
- The table notes possible agricultural setbacks adjacent to agricultural zones, fire-safe setbacks for lots over one acre, and special side-yard setbacks based on building height.
- Additional agricultural, timber, water-resource, wetland, riparian, and TRPA setbacks may apply.
front setback by RM/R1/R20K/R1A/R2A/R3A/RE: 20/20/30/30/30/30/30 feet · side setback by RM/R1/R20K/R1A/R2A/R3A/RE: 5/5/10/15/20/30/30 feet · rear setback by RM/R1/R20K/R1A/R2A/R3A/RE: 10/15/30/30/30/30/30 feet
“Setbacks1: (in feet) Front 20 20 30 30 30 30 30 Secondary Front 10 15 20 25 30 30 30 Side4, 5 5 5 10 15 20 30 30 Rear 10 15 30 30 30 30 30”
El Dorado County Zoning Ordinance, Title 130 ↗Re-checked Sep 24, 2026
Lot coverageDistrict specific (with conditions)
Land coverage in the Meyers Area Plan zones of unincorporated El Dorado County, as regulated through the TRPA Code of Ordinances and the Meyers Area Plan.
- The County ordinance states that land coverage is further regulated under the TRPA Code of Ordinances and Attachment A of the Meyers Area Plan.
- Detached single-family dwellings are limited to no more than 30 percent coverage under TRPA Code Section 30.4.
- Additional TRPA Code Chapter 30 requirements apply outside the Town Center overlay.
detached single-family dwelling coverage: <= 30 percent (TRPA Code Section 30.4)
“Detached single family dwellings limited to no more than 30% coverage per TRPA Code Sec. 30.4.”
El Dorado County Zoning Ordinance, Title 130 ↗Re-checked Sep 24, 2026
Building heightDistrict specific (with conditions)
Maximum building height in residential zoning districts in unincorporated El Dorado County.
- Maximum height is set by zone and may be modified by a variance or Development Plan permit.
- Special side-yard setbacks may apply because of building height.
- The Meyers Area Plan and TRPA Code provide separate height controls in the Tahoe Basin portion of the county.
maximum height by RM/R1/R20K/R1A/R2A/R3A/RE: 50/40/40/45/45/45/45 feet
“Maximum Height (in feet) 50 40 40 45 45 45 45”
El Dorado County Zoning Ordinance, Title 130 ↗Re-checked Sep 24, 2026
Camping on your landLimited
Temporary camping on private property in unincorporated El Dorado County.
- No residential zone district allows camping by right or by Conditional Use Permit.
- Selected agricultural and recreational zone districts may allow campgrounds with an approved Conditional Use Permit.
- Camping is allowed in the Timber Preserve Zone District with restrictions.
- The ordinance makes placement, maintenance, use, or occupancy of an unpermitted vehicle or temporary structure for camping, dwelling, or temporary or permanent residency for more than 30 days unlawful unless authorized under Section 130.40.100 or Section 130.52.050.
maximum unauthorized camping/residency duration: > 30 days (Placement or occupancy may be authorized under Section 130.40.100 or Section 130.52.050.)
“No residential zone district allows camping by right or by Conditional Use Permit. Select agricultural and recreational zone districts allow campgrounds with an approved Conditional Use Permit. Camping is allowed in the Timber Preserve Zone District (TPZ) with some restrictions.”
FAQ's - Planning - El Dorado County ↗Re-checked Sep 24, 2026
Tiny homesAllowed (with conditions)
Tiny homes under 400 square feet built on permanent foundations for long-term housing in unincorporated El Dorado County.
- The County guide describes tiny homes as small stationary homes under 400 square feet built on permanent foundations.
- Construction is subject to local building codes under California Title 24.
- Zoning, building, fire, septic, and other parcel-specific requirements may also apply.
maximum size described for tiny home: < 400 sq. ft.
“Tiny Home Small, stationary homes (under 400 sq. ft.) built on a permanent foundation, ideal for minimalist living. 100 to 400 sq. ft. Built similarly to traditional homes on a permanent foundation with durable materials. Subject to local building codes under Title 24. Long-term housing, vacation homes, eco-friendly living.”
Alternative Structures: A Guide to Various Uses ↗Re-checked Sep 24, 2026
Manufactured homesAllowed (with conditions)
Permanent primary or accessory dwelling occupancy by manufactured homes in unincorporated El Dorado County.
- Permanent placement must comply with County Code Chapter 110.64, applicable zone development standards, and Section 130.40.190.
- Permanent placement as a primary or accessory dwelling is allowed by right only in zones permitting detached single-unit residential dwellings by right.
- Manufactured homes are subject to applicable building, foundation, utility, fire, septic, and permitting requirements.
“In all zones which permit detached, single-unit residential dwellings by right, the permanent placement of mobile/manufactured homes as primary and/or accessory dwelling units shall be allowed by right.”
El Dorado County Zoning Ordinance, Title 130, adopted 8/14/2018 and amended 10/16/2025 ↗Re-checked Sep 24, 2026
Accessory dwellingsAllowed (with conditions)
Accessory dwelling units and junior accessory dwelling units in unincorporated El Dorado County.
- ADU or JADU construction is allowed by right in zones permitting single-family or multi-family residential development, subject to Section 130.40.300.
- An ADU may be rented separately from the primary residence only for a term of not less than 30 consecutive calendar days.
- An ADU may not be sold or otherwise conveyed separately from the primary residence except as provided by California Government Code Section 65852.26.
- Detached ADU maximum floor area is 850 square feet on lots up to 19,999 square feet, 1,200 square feet on lots from 20,000 square feet to less than one acre, and 1,600 square feet on lots of one acre or greater; units with more than one bedroom on lots up to 19,999 square feet may be up to 1,000 square feet.
- Attached ADUs may not exceed 50 percent of the primary dwelling square footage; conversions of accessory structures are not subject to the detached-unit table maximums.
- ADUs remain subject to applicable parking, height, setback, landscape, architectural-review, historic-resource, fire-safety, public-utility, drainage-easement, recorded-easement, building, and septic requirements.
- The County FAQ states that ADUs are permitted on all lots zoned for single-family residential uses unless the parcel is encumbered by a Williamson Act Contract.
minimum separate rental term: >= 30 consecutive calendar days · maximum detached ADU floor area: 850 sq. ft. (Lots up to 19,999 square feet; up to 1,000 square feet for units with more than one bedroom.) · maximum detached ADU floor area: 1200 sq. ft. (Lots from 20,000 square feet to less than one acre.) · maximum detached ADU floor area: 1600 sq. ft. (Lots of one acre or greater.)
“In all zones that permit single-family or multi-family residential development, the expansion of the primary dwelling or the construction of a new structure for the purpose of creating an accessory dwelling unit or a junior accessory dwelling unit is allowed by right, subject to the provisions of this Section.”
El Dorado County Zoning Ordinance, Section 130.40.300 Accessory Dwelling Units ↗Re-checked Sep 24, 2026
Septic permitRequired
Installation or change of a sewage disposal system in El Dorado County.
- A site evaluation and site approval report are also needed before the sewage disposal system permit application can be accepted, subject to the ordinance exception for acceptable pre-existing soil testing.
- Percolation tests are required before a site evaluation report can be completed.
- The permit is issued only to an owner or the owner's authorized representative.
- Standard and special-design systems follow the County's stated evaluation, design, installation, and construction requirements.
- Special-design systems include systems with percolation rates greater than 60 minutes per inch for standard leach lines, greater than 30 minutes per inch for non-standard leach lines, or less than 5 minutes per inch, and specified alternative systems.
site evaluation report submission deadline: 60 days after completion of site evaluation · standard-system percolation rate: 5-30 minutes/inch (Other rates may require special design.)
“A site evaluation, a site approval report and a sewage disposal system permit are needed to install or change a system. This applies whether you are an owner, contractor, company, or public agency. A permit will only be issued to an owner or the owner's authorized representative.”
Private Sewage Disposal System Ordinance - El Dorado County ↗Re-checked Sep 24, 2026
Well permitRequired
Construction, destruction, deepening, or repair of water wells in El Dorado County.
- Drillers must follow California Water Well Standards Bulletin 74-81 and supplements.
- Environmental Management reviews applications submitted by licensed well drillers for setback and development issues.
- Inspections may occur before permit approval, during annular-seal placement, or at any other time deemed necessary.
- Well completion reports must be submitted within 60 days of completion and are reviewed before finalizing the permit.
- The cited statement concerns water wells; monitoring-well, soil-boring, remediation, and site-investigation permits may have separate requirements.
well completion report deadline: 60 days after well completion
“Permits are required for the construction, destruction, deepening, and repair of a water well.”
Water Well Program - El Dorado County ↗Re-checked Sep 24, 2026
Subdividing landRegulated (with conditions)
Subdivision of land in unincorporated El Dorado County.
- A subdivision must comply with Title 120 and Title 130, applicable zone-district development standards, minimum lot sizes, parcel configurations, utility/water/waste regulations, Fire Safe regulations, road-development standards, General Plan land-use designation and policies, the State Subdivision Map Act, and other agency regulations.
- All subdivision requests are discretionary actions individually evaluated and heard at public hearing.
- For four parcels or fewer, a Parcel Map Tentative application is submitted; for five parcels or more, a Subdivision Map Tentative application is required.
maximum parcels for Parcel Map Tentative application: <= 4 parcels · minimum parcels for Subdivision Map Tentative application: >= 5 parcels
“A parcel can only be subdivided if a future subdivision would be consistent with all applicable Title 120 and Title 130 regulations (Zoning and Subdivision Ordinances), including but not limited to Zone District Development Standards, minimum lot sizes, parcel configurations, utility/water/waste regulations, Fire Safe regulations and road development standards.”
FAQ's - Planning - El Dorado County ↗Re-checked Sep 24, 2026
Building in a floodplainLimited
Development in El Dorado County flood hazard areas regulated under the County zoning ordinance.
- The County regulates development in flood hazard areas through Chapter 130.25, the Flood Damage Prevention Ordinance, in coordination and consistency with FEMA requirements.
- Flood-zone status is parcel-specific and is available through the County parcel-data lookup.
“In coordination and consistent with FEMA requirements, the County of El Dorado regulates development in flood hazard areas through implementation of the Flood Damage Prevention Ordinance, Chapter 130.25 of the El Dorado County Zoning Ordinance.”
FAQ's - Planning ↗Re-checked Sep 24, 2026
Short-term rentalsLimited
Vacation home rentals of 30 days or less in unincorporated El Dorado County; incorporated cities administer their own rules.
- A permit is required for rentals of 30 days or less.
- If the permit is not active, the property may not be rented short term.
- The County regulates, permits, and enforces vacation home rentals in the Tahoe Basin and West Slope, excluding incorporated cities.
- South Lake Tahoe and Placerville administer VHRs within their city limits.
- Long-term rentals over 30 days are not regulated under the County VHR ordinances.
- VHR permits impose maximum guest limits; additional owner, signage, local-contact, and nuisance requirements apply.
short-term rental duration: <= 30 days or less (ongoing month-to-month tenancy is treated as long-term)
“A permit is required when a property is rented for 30 days or less. If there is an active permit, it is up to the owner or owner’s agent to keep track of when the permit expires, and to submit an application for a permit renewal before the expiration date. If the permit is not active, the property may not be rented short term.”
Code Enforcement Division - VHR Unit ↗Re-checked Sep 24, 2026
Permit feesPublished (with conditions)
County building and planning permit fees, including permit-related agency and mitigation fees.
- Multiple checks may be required depending on permit type, including permit, school, Air Quality, and DOT encroachment fees.
- Card payments incur a 3.25% service fee.
- Half of the building permit fee and the entire planning fee are collected at permit application; the remainder of the building permit fee and other agency fees are collected at permit issuance.
- Fees vary by location and project type; sample fee estimates are based on specified home dimensions and zones.
card payment service fee: 3.25 percent · building permit fee collected at application: half · planning fee collected at application: entire fee
“HALF OF THE BUILDING PERMIT FEE AND THE ENTIRE PLANNING FEE ARE COLLECTED AT TIME OF PERMIT APPLICATION. The remainder of the building permit fee and other agency fees will be collected at the time of permit issuance.”
Fee Schedule, MOU's and Sample Fees ↗Re-checked Sep 24, 2026

California rules that apply here

Building code adoptedAdopted (with conditions)
California Building Standards Code, California Code of Regulations, Title 24, including the 2025 California Building Code and related parts, for buildings and structures subject to the state code.
- The 2025 California Building Standards Code applies to buildings and structures with a permit application date on or after January 1, 2026.
- The applicable local building department or enforcing agency determines how the permit application date is established in a specific jurisdiction.
- The code includes multiple parts, including the California Building Code, California Residential Code, Existing Building Code, Electrical Code, Mechanical Code, Plumbing Code, Energy Code, Wildland-Urban Interface Code, Fire Code, and Green Building Standards Code.
effective date: 2026-01-01 · permit application date: >= 2026-01-01
“The 2025 California Building Standards Code (CBSC), California Code of Regulations (CCR), title 24, will become effective on January 1, 2026, as a result of the 2024 Triennial Code Adoption Cycle. [...] The 2025 CBSC applies to all buildings and structures with a permit application date on or after January 1, 2026.”
Approved Building Standards ↗Re-checked Sep 9, 2026
One more reviewed finding on this topic
- Adopted — California statewide building standards, including residential construction subject to Title 24 of the California Code of Regulations.
  “Except as otherwise specifically provided by law, the building standards adopted and submitted by the department for approval [...] shall be adopted by reference”
  California Health and Safety Code Section 17922 ↗Re-checked Sep 26, 2026
Minimum dwelling sizeSpecified
Efficiency units permitted by a California city, county, or city and county.
- The local jurisdiction must adopt an ordinance permitting the efficiency unit.
- Occupancy is limited to no more than two persons.
- The unit may have partial kitchen or bathroom facilities as specified by the local ordinance.
- All other applicable minimum standards under Health and Safety Code Part 1.5 continue to apply.
minimum floor area: >= 150 square feet · maximum occupancy: <= 2 persons
“Notwithstanding Sections 17922, 17958, and 17958.5, a city, county, or city and county may, by ordinance, permit efficiency units for occupancy by no more than two persons which have a minimum floor area of 150 square feet and which may also have partial kitchen or bathroom facilities, as specified by the ordinance.”
California Health and Safety Code Section 17958.1 ↗Re-checked Sep 9, 2026
Living in an RVTemporary only (with conditions)
Occupancy of recreational vehicles as residential units in California.
- RVs are not intended for occupancy as permanent dwellings.
- Unless a local ordinance allows otherwise, RV occupancy generally is limited to mobilehome parks or special occupancy parks governed by the Mobilehome Parks Act or Special Occupancy Parks Act.
- Applicable state or local approval and enforcement requirements depend on the RV's location and classification.
maximum gross area: <= 400 square feet (Measured at maximum horizontal projections; internal living room area must be less than 320 square feet excluding specified built-in equipment and bath/toilet rooms.)
“RVs are not intended for occupancy as a permanent dwelling. [...] Unless otherwise allowed by a local ordinance, RVs generally may be occupied only in mobilehome parks or special occupancy parks”
Information Bulletin 2016-01: Tiny Homes ↗Re-checked Sep 9, 2026
Who permits septicMixed (with conditions)
California onsite wastewater treatment systems, including septic systems primarily treating domestic wastewater through subsurface disposal.
- The State Water Resources Control Board establishes the statewide OWTS Policy.
- Local agencies, such as county environmental health departments, issue OWTS permits under the statewide policy.
- Local Agency Management Programs may establish locally tailored siting and design standards.
OWTS Policy effective date: 2013-05-13 (Except for Tier 3, local agencies could continue existing permitting programs for 60 months after the effective date.) · Tier 1 maximum flow: <= 3500 gallons per day (Applies to qualifying new or replacement OWTS where no approved LAMP applies.) · Tier 2 maximum flow: <= 10000 gallons per day (Applies under an approved LAMP.)
“The State Water Resources Control Board [...] adopted the OWTS Policy in June 2012. The OWTS Policy authorizes local agencies [...] to issue OWTS permits.”
Onsite Waste Water Treatment Systems ↗Re-checked Sep 26, 2026
One more reviewed finding on this topic
- Mixed (with conditions) — Statewide regulation and management of onsite wastewater treatment systems, commonly known as septic systems.
  “Implementation of the OWTS Policy will be overseen by the State Water Board and the regional water quality control boards”
  Water Quality Control Policy for Siting, Design, Operation and Maintenance of Onsite Wastewater Treatment Systems (OWTS Policy) ↗Re-checked Sep 9, 2026
Septic inspectionLimited
OWTS in a Tier 3 Advanced Protection Management Program with supplemental treatment components, including systems in specified impaired-water-body areas statewide.
- The requirement applies to OWTS in an Advanced Protection Management Program with supplemental treatment components.
- Ongoing monitoring must follow the OWTS operation and maintenance manual or occur more frequently if required by the local agency or Regional Water Board.
- Where telemetry is not possible, the owner or owner's agent must inspect at least monthly while the system is in use and notify the service provider at least quarterly of observed operating parameters.
- For systems designed to meet disinfection requirements, a service provider must inspect proper operation quarterly while the system is in use unless continuous telemetric monitoring is capable of assessing operation.
- Quarterly effluent sampling and certified-laboratory requirements apply to systems subject to the disinfection provisions.
inspection frequency where telemetry is not possible: per monthly (While the system is in use.) · inspection frequency for disinfection systems: per quarterly (While the system is in use, unless continuous telemetric monitoring is capable of assessing operation.)
“Where telemetry is not possible, the owner or owner’s agent shall inspect the system at least monthly while the system is in use as directed and instructed by a service provider and notify the service provider not less than quarterly of the observed operating parameters of the OWTS. [...] OWTS in an Advanced Protection Management Program designed to meet the disinfection requirements in Section 10.10 shall be inspected for proper operation quarterly while the system is in use by a service provider unless a telemetric monitoring system is capable of continuously assessing the operation of the disinfection system.”
2023 OWTS Policy ↗Re-checked Sep 26, 2026
Mandatory utility hookupSewer (with conditions)
Certain existing OWTS in California Tier 3 impaired-water-body areas that commit to connect to a centralized wastewater collection and treatment system regulated through waste discharge requirements.
- The OWTS must have been constructed and operating, or permitted, on or before the date the nearby water body was added to OWTS Policy Attachment 2.
- The owner must commit by legally binding document to connect to a centralized wastewater collection and treatment system regulated through waste discharge requirements.
- The owner must sign the legally binding document within 48 months after the nearby water body's initial listing on Attachment 2.
- The specified connection date may not extend beyond nine years after the date the nearby water body is added to Attachment 2.
- The rule is an exception to Section 10 requirements for qualifying existing or permitted systems; it is not a general statewide requirement that every property connect to public sewer.
deadline to sign connection commitment: 48 months (Measured from the date the nearby water body is initially listed on Attachment 2.) · maximum time to complete connection: <= 9 years (Measured from the date the nearby water body is added to Attachment 2.)
“The owner must sign the document within forty-eight months of the date that the nearby water body is initially listed on Attachment 2. The specified date for the connection to the centralized community wastewater collection and treatment system shall not extend beyond nine years following the date that the nearby water body is added to Attachment 2.”
2023 OWTS Policy ↗Re-checked Sep 26, 2026
Driveway accessRequired
Driveways and driveway connections involving proposed encroachments within, under, or over State highway rights of way.
- The requirement applies to proposed activities related to placement of encroachments within, under, or over State highway rights of way.
- Applications are submitted to the appropriate District Encroachment Permits Office having jurisdictional authority over the site.
- Local or other agency requirements may also apply outside State highway rights of way.
“An encroachment permit must be obtained for all proposed activities related to the placement of encroachments within, under, or over the State highway rights of way.”
Encroachment Permits | Caltrans ↗Re-checked Sep 26, 2026
Permit processPublished (with conditions)
Construction, alteration, repair, movement, improvement, removal, conversion, or demolition of a building or structure in California.
- A separate permit for each building or structure must be obtained from the building official before the work.
- Code requirements vary by city and county; the applicable local building department must be consulted.
“no building or structure may be erected, constructed, enlarged, altered, repaired, moved, improved, removed, converted or demolished unless a separate permit [...] has first been obtained”
Do I need a building permit for my project? ↗Re-checked Sep 9, 2026
Campground & park staysLimited
Occupancy and use of manufactured homes and mobilehomes in California mobilehome parks and other locations subject to HCD jurisdiction.
- HCD administers titling and registration for manufactured homes and mobilehomes.
- HCD-inspected mobilehome parks are subject to health and safety enforcement where local government has not assumed enforcement.
- Manufactured/mobilehome park regulations address construction, use, maintenance, and occupancy.
- Separate local land-use, building, fire, health, and utility requirements may apply.
“MHs may be occupied outside or inside of mobilehome parks and installation and approval for occupancy is governed by the Mobilehome Parks Act (MPA), HSC Sections 18200, et seq., and Title 25, CCR Sections 1000, et seq.”
Manufactured & Mobilehomes ↗Re-checked Sep 26, 2026
2 more reviewed findings on this topic
- Limited — RV and trailer camping at Silver Strand State Beach Campground in the San Diego Coast District.
  “Camping Stay Limits: Applies to persons, equipment, or vehicles and any combination thereof [...] Maximum stay of 30 days per calendar year [...] Maximum 7 consecutive days during peak season (May 15 – September 15) [...] Maximum 14 consecutive days during non-peak season”
  Silver Strand State Beach Campground Rules and Regulations ↗Re-checked Sep 9, 2026
- Limited — Occupancy and use of recreational vehicles in California special occupancy parks and designated RV sections of mobilehome parks.
  “Unless otherwise allowed by a local ordinance, RVs generally may be occupied only in mobilehome parks or special occupancy parks governed by the Mobilehome Parks Act”
  What is a Mobilehome Park or Special Occupancy Park? ↗Re-checked Sep 26, 2026
county zoning authorityGeneral
California county legislative bodies' authority to adopt zoning ordinances regulating buildings, structures, land uses, lots, yards, open space, lot coverage, intensity of use, parking, loading, and setbacks within county jurisdiction, including unincorporated areas.
- The authority is exercised pursuant to Government Code Chapter 4, Zoning Regulations.
- The statute separately authorizes city legislative bodies; incorporated municipalities may exercise their own zoning authority.
- Government Code Section 65850 also lists authority to regulate signs and billboards, building and structure location, height, bulk, number of stories, and size, lot and open-space size and use, lot coverage, intensity of land use, offstreet parking and loading, and building setback lines.
- The cited section states it was amended by Stats. 2017, Ch. 376, Sec. 1, effective January 1, 2018.
“The legislative body of any county or city may, pursuant to this chapter, adopt ordinances that do any of the following:”
California Government Code Section 65850 ↗Re-checked Sep 21, 2026
county building authorityGeneral
California counties administering and enforcing state building standards through county building departments, including residential construction in unincorporated areas.
- Each county must maintain building standards and state building regulations in the office of the building official responsible for administration and enforcement of state building standards.
- The statewide Title 24 standards apply subject to statutory exceptions and any authorized local amendments or local requirements.
- The cited HCD bulletin concerns the 2019 California Building Standards Code and its July 1, 2021 supplement; later code editions may supersede those particular edition dates.
“These codes shall be maintained in the office of the building official responsible for the administration and enforcement of state building standards”
Information Bulletin 2021-02: 2019 California Building Standards Code Supplement ↗Re-checked Sep 26, 2026

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Living off-grid in El Dorado County, California

Is El Dorado County a good place to live off-grid or homestead?

El Dorado County scores 46/100 on the Bolthole Index, a marginal county profile. Watch-outs: about 84,443 people within 15 miles and elevated mid-century heat, water, rain, or wildfire exposure.

Do you need a building permit in El Dorado County, California?

El Dorado County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by El Dorado County Environmental Management Department, Environmental Health (Private Sewage Disposal System Ordinance). Owner-builders may act as their own contractor to build their home. These answers are quoted from official sources and independently re-checked. Rules change and cities within the county differ — always confirm with the county before you buy or build.

Can you live in an RV or tiny home on your land in El Dorado County?

Living in an RV on your own land in El Dorado County is allowed on a temporary basis only: Statewide rule. Occupancy of recreational vehicles as residential units in California. RVs are not intended for occupancy as permanent dwellings. Unless a local ordinance allows otherwise, RV occupancy generally is limited to mobilehome parks or special occupancy parks governed by the Mobilehome Parks Act or Special Occupancy Parks Act. A tiny home is allowed. Confirm with the county before relying on it.

How much does land cost in El Dorado County, California?

Land in El Dorado County runs about $11,768 per acre, based on the latest county data.

What is the water situation in El Dorado County?

El Dorado County gets about 45.4" of rain a year, with severe drought in roughly 33.6% of years.

How remote is El Dorado County?

A typical private-land location has about 84,443 people within 15 miles and 4,461,118 within 100 miles. These radius catchments are the published fallback where road routing is unavailable.

Building permits, zoning and land rules in El Dorado County, California

At a glance

Who to call

Do you need a building permit in El Dorado County, California?

Who is the El Dorado County building department, and how do you reach them?

Does El Dorado County have zoning?

How do septic permits work in El Dorado County?

Can you live in an RV or tiny home on your land in El Dorado County?

Building a home in El Dorado County: the steps, in order

What to check before you buy land in El Dorado County

Watch-outs

Sources

El Dorado County in California

How El Dorado County scores

Find land. Bring the promising ones back.

Parcel due diligence

Answers from the rulebook for El Dorado County

El Dorado County rules

California rules that apply here

Living off-grid in El Dorado County, California

Is El Dorado County a good place to live off-grid or homestead?

Do you need a building permit in El Dorado County, California?

Can you live in an RV or tiny home on your land in El Dorado County?

How much does land cost in El Dorado County, California?

What is the water situation in El Dorado County?

How remote is El Dorado County?

How El Dorado compares in California