Bolthole Index

McLennan County, Texas

Building permits, zoning and septic rules in Waco, Texas

Waco, Texas requires building permits for residential construction and remodeling through the city’s Inspection Services Division.1 Waco Planning Services reviews development for zoning compliance; McLennan County’s rural construction rules are a separate process.23 The Waco-McLennan County Public Health District administers septic systems inside Waco, but city water and sewer connections are required where available unless the city grants an exemption.45

At a glance

Building permits
City Inspection Services issues residential construction and remodeling permits1
Zoning
City Planning Services reviews zoning, subdivision and overlay compliance2
Septic authority
Waco-McLennan County Public Health District administers the program inside Waco4
Water and sewer
Connect where city service is available unless exempted by the city5
Lot size
R-2 single-family lots: at least 6,000 square feet per dwelling unit and 50 feet wide, subject to exceptions6
Floodplain
City floodplain development approval applies in identified special flood hazard areas7

Who to call

Building permits

City of Waco Inspection Services

Construction plan review, building permits and inspections

(254) 750-5612

[email protected]

401 Franklin Ave. Waco, TX 76701

Online permits →

Building permits

City of Waco Inspection Services — Residential Construction

Residential building permit applications and construction inspection sequence

(254) 750-5612

Planning & zoning

City of Waco Planning Services

Zoning, subdivision and development review

(254) 750-5650

[email protected]

401 Franklin Avenue Waco, TX 76701

Septic permits

Waco-McLennan County Public Health District — OSSF Program

Septic applications, inspections and approval

(254) 299-2473

401 Franklin Avenue - Mae Jackson Development Center - 1st Floor

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 Waco means bringing your own water and power. The kit we’d start with:

These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.

Do you need a building permit in Waco, TX?

Waco Inspection Services issues building permits for residential construction and remodeling, and building permits must be approved before work starts.1 Waco has adopted minimum building standard codes for work inside city limits.8

Waco’s published residential structure fee is $0.45 per square foot for living area, non-living area and accessory structures; the fee schedule also allows doubled fees for work started before a required building permit is obtained.9 Ask Inspection Services to identify the building and trade applications for your specific project before budgeting the permit cost.101

Who issues Waco building permits, and how do you apply?

Waco Inspection Services is the city building-permit counter; call (254) 750-5612 or email [email protected] for construction plan review, building permits and inspections.10 Waco requires applicable residential plans to be submitted through the Citizen Self Service Portal in PDF format.1 Electrical, plumbing and heating/air-conditioning subcontractors must be licensed and obtain building trade permits for their own work.1

The city’s Inspection Services page currently reports that the launch of new permitting software has been delayed, so contact the building-permit counter for the current application route if portal access is unclear.10

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

Waco Planning Services reviews development applications for compliance with the city zoning ordinance, subdivision ordinance, special overlays and historic preservation requirements.2 Ask Planning Services for zoning verification before choosing a house layout or assuming a use is allowed on a particular parcel.2

For a single-family dwelling in Waco’s R-2 district, the stated minimum lot area is 6,000 square feet per dwelling unit and the minimum width is 50 feet, subject to the ordinance’s exceptions.6 In Waco’s R-1C district, single-family yard requirements are at least 25 feet in front, 6 feet on each side and 25 feet at the rear, subject to an exception.11 These are different districts: use the parcel’s actual zoning when asking Planning Services to review a site plan.2

How do septic permits work inside Waco?

The Waco-McLennan County Public Health District administers the on-site sewage facility program inside Waco; city sewer-connection requirements still apply where service is available unless the city grants an exemption.45 A septic proposal therefore needs both a city sewer-exception answer and Health District review, rather than assuming acreage alone permits an off-grid wastewater system.512

The current Health District schedule lists $510 for a conventional single-family septic permit and inspection, $710 for an aerobic single-family system, and a mandatory $10 fee on all new or repair permits.13 The Health District says the suitable system depends on soils, site characteristics, physical features and intended use; ask Environmental Health to evaluate the proposed wastewater arrangement before buying a lot for septic.13

Can you live in an RV or tiny home in Waco?

We could not confirm permission to occupy an RV or a tiny home on an individual Waco lot; ask Waco Planning Services about the proposed residential use and Inspection Services about construction approval.21 We also could not confirm a Waco minimum dwelling floor area or an owner-builder exemption from city building permits; ask those same city offices before committing to a small-home design or doing the work yourself.21

Waco’s accessory dwelling unit standards are narrower than a blanket tiny-home permission: applicable ADU sites limit buildings and paved areas to 75% of the lot, and an ADU cannot exceed the primary dwelling’s height.1415 Ask Planning Services which residential use and district standards fit the actual proposal.2

Building a home in Waco: what are the steps, in order?

  1. Ask Waco Planning Services to verify zoning and review the proposed use, subdivision status and any overlay requirements.2
  2. Resolve city water and sewer availability; if proposing septic instead of available sewer, ask about the city exemption and contact the Health District’s OSSF Program.54
  3. Ask Waco’s Floodplain Administrator to review floodplain development requirements before site work in a mapped flood hazard area.716
  4. Submit residential plans through the city portal and obtain building permit approval before starting work; licensed trade contractors obtain their own trade permits.1
  5. Arrange construction inspections, including rough plumbing, mechanical, gas and electrical inspections before concealment, and the final inspection before occupancy.1

For a parcel outside city limits, use the McLennan County guide for the county’s separate residential notice and inspection-compliance process.3

Watch-outs

  • Waco’s new permitting software launch is delayed; ask Inspection Services which portal to use for a new building permit application.10
  • Waco floodplain development can require a separate city floodplain development permit; contact the city Floodplain Administrator before proceeding.16
  • We could not confirm Waco private-well, agricultural building exemption or residential driveway-access requirements; ask Planning Services and Inspection Services to identify the office and approvals for the parcel.210

Sources

  1. City of Waco Inspection Services — Residential Construction (waco-texas.com)
  2. City of Waco Planning Services (waco-texas.com)
  3. Residential Building Requirements, quoted and re-checked
  4. On-Site Sewage Facilities Program (Waco), quoted and re-checked
  5. Waco Code, Section 26-9 Water and sewer connections (Waco), quoted and re-checked
  6. Waco Code, Section 28-374 R-2 lot area (Waco), quoted and re-checked
  7. Waco Code, Section 11-38 Development permit required (Waco), quoted and re-checked
  8. Waco Code, Section 6-26 Codes adopted (Waco), quoted and re-checked
  9. Permit Fee Schedules (Waco), quoted and re-checked
  10. City of Waco Inspection Services (waco-texas.com)
  11. Waco Code, Section 28-351 R-1C yard requirements (Waco), quoted and re-checked
  12. Waco Code, Section 26-26 Connection to system (Waco), quoted and re-checked
  13. Waco-McLennan County Public Health District — OSSF Program (waco-texas.com)
  14. Waco Code, Section 28-970.5.3 ADU standards (Waco), quoted and re-checked
  15. Waco Code, Section 28-970.5.3 ADU standards (Waco), quoted and re-checked
  16. City of Waco Watershed Engineering — Floodplain Administrator (waco-texas.com)

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 Waco

Waco’s own rules

  • Building code adoptedAdopted

    Building work inside Waco city limits.

    • Chapter 6 adopts the listed codes as minimum standards.
    • Conflicting Chapter 6 provisions govern.
    • Newer listed codes automatically adopt 12 months after ICC publication unless amended or not adopted; newer IECC versions do not automatically adopt.
    “The following Codes and the standards contained therein, are hereby adopted as the Minimum Building Standard Codes of the City of Waco:”
  • Certificate of occupancyRequired

    A new business or business moving into a new space inside Waco city limits.

    • If no interior alterations are planned, apply for a Commercial Check.
    • If alterations are planned, obtain applicable building permits.
    • A successful Commercial Check results in a Certificate of Occupancy for the specific business and location.
    “To start a new business and/or move a business into a new space, a Certificate of Occupancy is needed for the new location.”
  • Minimum lot sizeSpecified

    Waco R-2 district, single-family dwelling.

    • Except as otherwise provided in section 28-901.

    minimum lot area: >= 6000 square feet per dwelling unit · minimum lot width: >= 50 feet

    “An area of not less than 6,000 square feet per dwelling unit; and a minimum width of 50 feet.”
  • SetbacksSpecified

    Waco R-1C district, single-family dwelling.

    • Section 28-904 provides an exception.

    front yard: >= 25 feet · each side yard: >= 6 feet · rear yard: >= 25 feet

    “A front yard of not less than 25 feet; two side yards of not less than six feet each; and a rear yard of not less than 25 feet.”
  • Lot coverageSpecified

    Accessory dwelling unit sites in applicable Waco single-family residential districts.

    • The cited 75% limit applies specifically to ADU sites, not necessarily all principal residential development.

    maximum coverage by buildings and paved areas: <= 75 percent

    “shall not exceed 75 percent of the total lot.”
  • Building heightSpecified

    Accessory dwelling units in applicable Waco single-family residential districts.

    • The cited height limit applies to ADUs; an ADU may not exceed the primary dwelling height.
    “shall not exceed the height of the primary dwelling unit.”
  • Who permits septicMixed (with conditions)

    On-site sewage facilities inside Waco city limits; Waco municipal sewer rules coexist with Health District administration.

    • Through an agreement between Waco and McLennan County, the Health District administers the OSSF program for Waco.
    • The Health District serves as the designated representative for McLennan County under Texas Health and Safety Code Chapter 366 and 30 TAC Chapter 285.
    “the Health District administers the program [...] and the City of Waco.”
  • Off-grid sanitationLimited

    OSSFs used instead of public sewer inside Waco city limits.

    • The alternatives are limited to the exceptions in Sec. 26-26(a).
    • A properly permitted OSSF may continue until failure and public sewer is contiguous.
    • Septic systems must not create an unsanitary or unwholesome condition.
    “shall be allowed to continue to be served by the on-site sewage facility until the on-site sewage facility fails and public sanitary sewer is contiguous”
  • Mandatory utility hookupWater and sewer (with conditions)

    Premises and new buildings inside Waco city limits when City water or sanitary sewer service is available.

    • Connection is required unless exempted by the City.
    • Sewer exceptions include qualifying single-family lots with OSSFs, including 20-acre lots, approved/platted OSSFs, non-contiguous sewer, or OSSFs properly permitted as of January 1, 1999.
    “must be connected [...] to the city's water distribution or sanitary sewer service, except when exempted by the city from so doing.”
  • Building in a floodplainRequired

    Development in officially identified special flood hazard areas inside Waco city limits.

    • A floodplain development permit is required before nonstructural development.
    • Building permits are required before construction or new use for new construction, substantial improvement, or change of use.
    • Permit fees must be paid before issuance.
    “A floodplain development permit shall be required [...] prior to nonstructural development within an officially identified special flood hazard area.”
  • Short-term rentalsLimited

    Short-term rental facilities inside Waco city limits.

    • A City license is required.
    • A special permit is required if Chapter 28 requires one.
    • In specified residential districts, Type II rentals and homestays have a 500-foot spacing rule.
    • Parking, occupancy, signage, lighting, and food-service requirements also apply.

    short-term rental period: < 30 consecutive days · spacing in R-E, R-1A, R-1B, R-1C, and R-2: >= 500 feet (Existing special permits may be exempt subject to stated conditions)

    “It shall be unlawful to operate [...] Without a bed and breakfast facility or short-term rental facility license;”
  • Permit feesPublished

    Waco building permits and related inspections.

    • Fees vary by structure, work type, area, inspection type, and other listed categories.
    • The page includes a penalty that fees may be doubled for work started before obtaining a required permit.

    residential structures: per 0.45 USD per square foot (Living Area and Non-Living Area and Accessory Structures) · residential dwelling inspection: 77 USD per site visit (Third-party inspection fee) · temporary certificate initial period: 200 USD (Initial 30 days)

    “Residential Structures Living Area and Non-Living Area and Accessory Structures | $0.45 per sq. ft.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Waco or McLennan County directly.

  • Owner-builder exemption — Owner-builder exemption from Waco building permits or code requirements.
  • Minimum dwelling size — Minimum dwelling size in Waco residential zoning districts.
  • Tiny homes — Tiny-home occupancy inside Waco city limits.
  • Well permit — Private wells inside Waco city limits.
  • Agricultural exemption — Agricultural or farm-use exemption from Waco building, zoning, or permit requirements.
1 more unanswered
  • Driveway access

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 Waco publishes no rule on the point, not that none exists. McLennan County’s page lists the county offices to call.

← All of McLennan County: county rules, score and offices