Bolthole Index

Santa Barbara County, California

Building permits, zoning and land rules in Buellton, California

Buellton, California uses Santa Barbara County Building & Safety for building permit review, issuance and inspections under a city contract.1 Buellton Planning handles city land-use questions, and the city maintains its own zoning districts.23 Where an onsite wastewater system is applicable and the County LAMP applies, Santa Barbara County Environmental Health Services handles septic permitting.45

At a glance

Building permits
County Building & Safety provides review, issuance and inspections under contract with Buellton1
Zoning
City zoning districts and official zoning map; ask Buellton Planning for the parcel designation3
Septic permits
County Environmental Health Services where an OWTS is applicable and the County LAMP applies54
Manufactured homes
Allowed on foundations in RS, RM, PRD and MHP zones, subject to specific-use requirements6
ADUs
Allowed subject to zoning clearance in RS, RM and PRD zones7
Owner-builder
Conditional California contractor-license exemption; required building permits and inspections still apply8
Private wells
California requires a local permit before well construction, modification or destruction; confirm the city-address agency9

Who to call

Planning & zoning

City of Buellton Planning Department

City land-use applications, zoning questions and code enforcement

(805) 688-7474

[email protected]

Building permits

Santa Barbara County Building and Safety Division — Buellton contract services

Building permit review, issuance and inspections for Buellton under the city contract

805-934-6230

Septic permits

Santa Barbara County Environmental Health Services — Liquid Waste / OWTS Program

County LAMP septic-system permitting and inspections where applicable inside Buellton

Contact details are copied from each office’s official page and were checked against it on October 11, 2026.

Off-grid gear

Going off-grid in Buellton means bringing your own water and power. The kit we’d start with:

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Do you need a building permit in Buellton, CA?

For a home project in Buellton, start with the building-permit review administered by Santa Barbara County Building & Safety under contract with the city.1 Buellton adopts the Santa Barbara County Primary Building Code by reference as its own Building Code.10

An owner-builder should keep contractor licensing separate from building approval: California’s conditional owner-builder exemption concerns contractor licensure and does not waive required building permits or inspections.8 Ask the contracted Building & Safety office which building application and inspection requirements apply to the proposed work.1

Who handles building permits and planning applications in Buellton?

Buellton Planning handles current and long-range planning and code enforcement; County Building & Safety handles building permit review, issuance and inspections under the city contract.21 For a city land-use application, Buellton Planning accepts emailed application materials, payment, plans and required documents.2

Contact Buellton Planning using the department details below for the city application, and use the contracted Building & Safety contact for building review and inspections.21 Keep the two approvals distinct when asking about the proposed use and construction plans.21

Does Buellton have zoning, lot-size rules and setbacks?

Buellton has city zoning districts shown on the official zoning map maintained by city Planning.3 For new residential subdivisions, RS-6 requires 6,500 square feet net, RS-7 requires 7,000 and RS-8 requires 8,000; these are district-specific subdivision standards, not a single minimum for every existing lot.11

The ordinary RS front setback is 20 feet, the side setback is 10% of lot width with a 5-foot minimum and 10-foot maximum, and the rear setback is 25 feet, reduced to 15 feet when the rear yard abuts a street with access denied.12 RM and PRD standards differ, and setback measurement and exceptions must also be considered.12 Qualifying SB 9 housing projects have special state setback rules, so ask Planning which approval pathway applies before fixing a building footprint.132

How do septic permits work inside Buellton?

For Buellton properties where an onsite wastewater treatment system is applicable and the County LAMP applies, Santa Barbara County Environmental Health Services is the septic authority.4 New systems and repair, modification or abandonment of existing systems require Environmental Health Services permitting under that program.5

Environmental Health Services must inspect and approve the work before components are backfilled or the system enters service; supplemental-treatment systems also require periodic inspection, maintenance and reporting.14 Public sewer availability and Buellton’s sewer code may determine whether private sewage disposal is applicable, so resolve that question before commissioning a septic design.4

Can you live in an RV or tiny home on land in Buellton?

We could not confirm a general Buellton rule allowing RV living, temporary camping or tiny-home occupancy on a private lot; ask Buellton Planning about the exact vehicle or structure and proposed duration.2 Buellton does allow manufactured homes on foundations in RS, RM, PRD and MHP zones, subject to specific-use requirements.6 Buellton also allows ADUs subject to zoning clearance in RS, RM and PRD zones.7

Those manufactured-home and ADU permissions do not establish an RV or tiny-home occupancy approval; ask Planning which category the proposed dwelling falls into before buying it.672

Building a home in Buellton: what steps should you take?

  1. Ask Buellton Planning to identify the parcel’s zoning district and discuss the proposed dwelling, lot dimensions and setbacks.31112
  2. Ask about water and sewer service before choosing private sewage disposal; where the County LAMP applies, bring a proposed septic system to Environmental Health Services for permitting.45
  3. Submit the city land-use application materials to Buellton Planning and coordinate the building application with the contracted County Building & Safety office.21
  4. Arrange building inspections with the contracted Building & Safety office, and obtain Environmental Health Services inspection and approval before backfilling or using any applicable septic system.114

What should you check before buying land in Buellton?

Confirm that the parcel is inside Buellton city limits: the county zoning rules apply to unincorporated land, while Buellton maintains its own zoning districts.153 For property outside the city, use the Santa Barbara County guide.15

For a driveway, Buellton’s land-use-permit exemption is conditional: the driveway must not require a grading permit, rise over 30 inches above finish grade, or sit over a basement or story below; other construction approvals may still be required.16 A driveway encroaching on a state highway right-of-way requires Caltrans approval.17 California also requires a local permit before private-well construction, modification or destruction; confirm the responsible local agency for the city address before hiring a driller.9

Watch-outs

  • We could not confirm Buellton’s mandatory water or sewer connection conditions; ask city Planning to resolve service requirements before relying on an off-grid sanitation plan.2
  • We could not confirm Buellton’s general certificate-of-occupancy requirement; ask the contracted Building & Safety office what final approval is needed before moving in.1
  • California’s owner-builder exemption does not waive required building permits or inspections.8

Sources

  1. Santa Barbara County Building and Safety Division — Buellton contract services (cityofbuellton.com)
  2. City of Buellton Planning Department (cityofbuellton.com)
  3. Chapter 19.02 Zoning Districts and Allowable Land Uses (Buellton), quoted and re-checked
  4. Santa Barbara County IRWM Plan Update 2019 (Buellton), quoted and re-checked
  5. cityofbuellton.com (Buellton), quoted and re-checked
  6. Chapter 19.02 Zoning Districts and Allowable Land Uses (Buellton), quoted and re-checked
  7. Chapter 19.02 Zoning Districts and Allowable Land Uses (Buellton), quoted and re-checked
  8. California Business and Professions Code section 7044 (California statewide rule), quoted and re-checked
  9. Well Standards (California statewide rule), quoted and re-checked
  10. Chapter 17.08 Building Regulations (Buellton), quoted and re-checked
  11. Residential zone general development standards (Buellton), quoted and re-checked
  12. Residential zone general development standards (Buellton), quoted and re-checked
  13. SB 9 Fact Sheet (California statewide rule), quoted and re-checked
  14. cityofbuellton.com (Buellton), quoted and re-checked
  15. Subdivision Regulations, Chapter 21 Land Division, quoted and re-checked
  16. Chapter 19.02 Zoning Districts and Allowable Land Uses (Buellton), quoted and re-checked
  17. Encroachment Permits | Caltrans (California statewide rule), quoted and re-checked

Written October 11, 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.

Answers from the rulebook for Buellton

Buellton’s own rules

  • Building code adoptedAdopted (with conditions)

    Building construction inside Buellton city limits.

    • The city adopts the Santa Barbara County Primary Building Code by reference as its Building Code.
    “The Santa Barbara County Primary Building Code, codified as Chapter 10, Article III, of the Santa Barbara County Code, is adopted by reference”
  • Zoning districtsPublished

    Land inside Buellton city limits.

    • The city zoning districts are shown on the official zoning map maintained by the city planning department.
    • Published districts include RS, RM, PRD, MHP, CN, CR, CS, M, REC, OS, PQP, and the affordable-housing overlay -H.
    “District | Map Symbol Residential Single-family residential | RS Multifamily residential | RM Planned residential district | PRD Mobilehome park | MHP Commercial/Industrial Neighborhood commercial | CN General commercial | CR Service commercial | CS Industrial/manufacturing | M Special-Purpose Recreation | REC Open space | OS Public/quasi-public | PQP Overlay Affordable housing | -H”
  • Minimum lot sizeSpecified

    New residential subdivisions in Buellton's RS single-family residential zone.

    • Minimum lot area and width depend on the zoning-map suffix.
    • RS-6, RS-7, and RS-8 are expressly listed in the opened table.

    RS-6 minimum lot area: 6500 sq ft net (minimum lot width 65 feet) · RS-7 minimum lot area: 7000 sq ft net (minimum lot width 65 feet) · RS-8 minimum lot area: 8000 sq ft net (minimum lot width 75 feet)

    “The minimum area and width of lots proposed in new residential subdivisions is determined by the following table, based on a suffix to the zoning map symbol (e.g., RS-6, RS-7, RM-10, etc.), as follows:”
  • SetbacksDistrict specific (with conditions)

    Residential development in Buellton RS, RM, and PRD zones.

    • RS front setback is 20 feet; RS side setback is 10% of lot width with 5-foot minimum and 10-foot maximum; RS rear setback is 25 feet, or 15 feet if the rear yard abuts a street with access denied; RM and PRD standards differ as shown in the table.
    • Setback measurement and exceptions are governed by § 19.04.160.

    RS front setback: 20 ft minimum · RS side setback: 10% of lot width; 5 ft minimum; 10 ft maximum · RS rear setback: 25 ft minimum (15 ft if rear yard abuts street with access denied)

    “Front | 20 ft. minimum | Determined by Development Plan | As required by Section 19.06.120 (Mobilehome Parks)”
  • Lot coverageSpecified

    Residential development in Buellton RM and PRD zones.

    • RM permits 30% of net site area for dwellings; PRD permits 30% of net site area for dwellings and 50% of net site area for all buildings.

    RM dwelling site coverage: 30 percent of net site area · PRD dwelling site coverage: 30 percent of net site area · PRD all-building site coverage: 50 percent of net site area

    “Site coverage | No maximum | 30% of net site area for dwellings | 30% of net site area for dwellings; 50% of net site area for all buildings”
  • Manufactured homesAllowed (with conditions)

    Manufactured homes on foundations in Buellton residential zoning districts.

    • The residential use table lists manufactured homes as an allowed use in RS, RM, PRD, and MHP zones, subject to the referenced specific-use requirements.
    “Manufactured homes A A A A 19.06.110”
  • Accessory dwellingsAllowed (with conditions)

    Accessory dwelling units in Buellton RS, RM, and PRD residential zones.

    • The use table marks ADUs as allowed subject to zoning clearance.
    • The specific-use section states that the city regulates ADUs and JADUs in compliance with California Government Code Sections 66310 et seq.
    “Accessory dwelling units (ADUs) | A | A | A”
  • Driveway accessLimited

    Driveways inside Buellton city limits that qualify for the zoning-code land-use-permit exemption.

    • The exemption applies only to driveways that do not require a grading permit, are not over 30 inches above finish grade, and are not over a basement or story below.
    • Other building, grading, construction, or subdivision permits may still be required.

    maximum elevation above finish grade: <= 30 inches (must not require a grading permit and must not be over a basement or story below)

    “are not over 30 inches above finish grade”

Rules another office applies inside Buellton

Buellton does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.

  • Who permits septicCounty (with conditions)

    On-site wastewater treatment systems inside Buellton city limits where an OWTS is used and subject to the Santa Barbara County Environmental Health Services LAMP.

    • The cited LAMP discussion states that the County's program regulates septic systems within the County's jurisdiction.
    • Public sewer availability and Buellton's sewer code may determine whether private sewage disposal is applicable.
    “regulate septic systems within the County’s jurisdiction”
  • Septic permitRequired

    Construction of a new OWTS, or repair, modification, or abandonment of an existing OWTS inside Buellton city limits where the County LAMP applies.

    • Environmental Health Services permitting is required for new OWTS and for repair, modification, or abandonment of existing systems.
    “requires permitting by Environmental Health Services”
  • Septic inspectionRequired

    OWTS work inside Buellton city limits where the County LAMP applies.

    • Environmental Health Services inspection and approval is required before backfilling components or placing the system into service.
    • Supplemental-treatment systems require periodic inspection, maintenance, and reporting.
    “Inspection and approval of all work by Environmental Health Services is required”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Buellton or Santa Barbara County directly.

  • Owner-builder exemption — Owner-builders performing construction inside Buellton city limits.
  • Certificate of occupancy — Buildings inside Buellton city limits.
  • Minimum dwelling size — Residential dwellings inside Buellton city limits.
  • Camping on your land — Temporary camping inside Buellton city limits.
  • Tiny homes — Tiny-home occupancy inside Buellton city limits.
6 more unanswered
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Subdividing land
  • Short-term rentals

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.

Unanswered questions are usually a sign that Buellton publishes no rule on the point, not that none exists. Santa Barbara County’s page lists the county offices to call.

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