Bolthole Index

Tarrant County, Texas

Zoning, building permits and septic rules in Forest Hill, Texas

Forest Hill, Texas, in Tarrant County, has its own zoning ordinance1, and the City of Forest Hill says a building permit is required for construction inside the city2. Septic permits inside Forest Hill come from the Tarrant County Engineering Department, which regulates septic systems in Forest Hill as a contract city3. Tarrant County's "no zoning" answer covers only land outside city limits4.

At a glance

Building permit
Required; issued by the City of Forest Hill permits department2
Zoning
Yes, the city's own zoning ordinance1
Zoning districts
11 districts, including R-1 single-family5
R-1 minimums
10,000 sq ft lot and 1,800 sq ft of living area, 40% maximum lot coverage678
Septic
Tarrant County Engineering Department (OSSF program)3

Who to call

Building permits

City of Forest Hill Permits Department

Building permits, inspections and certificate of occupancy applications inside Forest Hill city limits

817-806-4561

3219 California Parkway Forest Hill, Texas, 76119

Septic permits

Tarrant County OSSF Program (Engineering Services)

Septic (OSSF) permit applications for unincorporated Tarrant County and the contract cities, including Forest Hill

817-212-7082

100 E. Weatherford St., Fort Worth, Texas 76196

Septic permits

Tarrant County Engineering Department, OSSF contract cities

Lists the cities, Forest Hill among them, where Tarrant County regulates septic systems

Contact details are copied from each office’s official page and were checked against it on October 24, 2026.

Off-grid gear

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

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Does Forest Hill, Texas have zoning, and what does it mean for lot size and home size?

Yes. Forest Hill applies its own zoning ordinance to land inside city limits, adopted in 2016 and since amended1. The city code divides Forest Hill into 11 districts shown on an official zoning map5.

In the R-1 single-family district, a lot must contain at least 10,000 square feet, the dwelling needs at least 1,800 square feet of living area, and buildings may cover no more than 40% of the lot678. R-1 also requires a two-car garage and a two-car paved driveway9. Those figures are for the R-1 district only6; other districts have their own schedule.

We could not confirm Forest Hill's setbacks, height limits, or rules on RVs, tiny homes and accessory dwellings. Ask the Forest Hill permits department, and look up the property's district on the city zoning map before you buy.

Do you need a building permit in Forest Hill, and who issues it?

Yes. The City of Forest Hill states that a building permit is required, and that city staff review the design and inspect the finished project against the applicable zoning regulations, the City of Forest Hill Building Codes and other building requirements2. The Forest Hill permits department handles building permits, inspections and certificate of occupancy applications; call 817-806-45612.

Tarrant County does not issue building permits for residential homes10, but that is the county's rule for unincorporated land and does not replace the city permit inside Forest Hill. We could not confirm whether Forest Hill has an owner-builder exemption, so ask the permits department before you start work.

How do septic permits work inside Forest Hill?

Septic permits for Forest Hill addresses come from the Tarrant County Engineering Department, not the city. Forest Hill is on the county's list of contract cities where the county regulates on-site sewage facilities3. The county requires an OSSF permit for all new construction and when renovations significantly change a structure's square footage or water flow11.

Texas lets a single-family home on a tract of at least 10 acres seek an exemption from septic permitting if every TCEQ condition is met12. Typical Forest Hill lots are far smaller, so plan on a permit. We could not confirm whether Forest Hill requires connection to city sewer for a new home; ask the permits department.

Building a home in Forest Hill: the steps, in order

  1. Find the lot's zoning district on the city zoning map and check the district's lot, living-area and driveway rules5.
  2. If the land will be divided, expect the city to want a plat showing water and sanitary sewer mains, valves and fire hydrants before it approves a final plat13.
  3. Apply for the building permit with the Forest Hill permits department2.
  4. If the home will use a septic system, apply for the OSSF permit with Tarrant County Engineering11.
  5. Schedule inspections with the permits department as work proceeds2.
  6. Request a certificate of occupancy application from the city when the work is done2.

What stays with Tarrant County, the state and the utility, and what to check before you buy

Outside Forest Hill's limits, Tarrant County has no zoning authority4. See the Tarrant County page for unincorporated land.

Inside the city, a permit from the engineering department is required before anyone builds, alters or replaces water or sanitary sewer improvements on public property14, and the inspection fee is three percent of the total contract price15. A driveway that connects to a state highway needs a TxDOT permit on Form 105816.

We could not confirm Forest Hill's floodplain rules or any private-well rules; ask the permits department about floodplain development and your local groundwater conservation district about wells.

Watch-outs

  • Do not rely on Tarrant County's statement that it has no zoning for a lot inside Forest Hill; that statement covers only land outside city limits4.
  • The 10,000 square foot lot, 1,800 square foot home and 40% coverage figures apply to the R-1 district only678.
  • We could not confirm Forest Hill's setbacks, height limits or RV, tiny-home and short-term rental rules; call the Forest Hill permits department before you buy or build2.

Sources

  1. ARTICLE 9.02: ZONING ORDINANCE - City of Forest Hill, TX (Forest Hill), quoted and re-checked
  2. City of Forest Hill Permits Department (foresthilltx.org)
  3. Tarrant County Engineering Department, OSSF contract cities (tarrantcountytx.gov)
  4. Guidelines for Development in the Unincorporated Areas of Tarrant County, quoted and re-checked
  5. Division 3: Zoning Districts and District Map - City of Forest Hill, TX (Forest Hill), quoted and re-checked
  6. Division 3: Zoning Districts and District Map - City of Forest Hill, TX (Forest Hill), quoted and re-checked
  7. Division 3: Zoning Districts and District Map - City of Forest Hill, TX (Forest Hill), quoted and re-checked
  8. Division 3: Zoning Districts and District Map - City of Forest Hill, TX (Forest Hill), quoted and re-checked
  9. Division 3: Zoning Districts and District Map - City of Forest Hill, TX (Forest Hill), quoted and re-checked
  10. Guidelines for Development in the Unincorporated Areas of Tarrant County, quoted and re-checked
  11. Tarrant County OSSF Program (Engineering Services) (tarrantcountytx.gov)
  12. Getting a Permit for an OSSF - Such as a Septic System (Texas statewide rule), quoted and re-checked
  13. ARTICLE 12.05: EXTENSION OF WATER AND SEWER MAINS - City of Forest Hill, TX (Forest Hill), quoted and re-checked
  14. ARTICLE 12.05: EXTENSION OF WATER AND SEWER MAINS - City of Forest Hill, TX (Forest Hill), quoted and re-checked
  15. ARTICLE 12.05: EXTENSION OF WATER AND SEWER MAINS - City of Forest Hill, TX (Forest Hill), quoted and re-checked
  16. Section 4: Driveway Permits, Design, and Materials (Texas statewide rule), quoted and re-checked

Written October 24, 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 Forest Hill

Forest Hill’s own rules

  • InspectionsLimited

    Installation of water and sanitary sewer mains for a real-estate subdivision in Forest Hill.

    • Applies after preliminary city approval of plans and only to water-main and sanitary-sewer-main construction and installation.
    “Upon preliminary approval of the plans by the city, the developer may enter into a contract with any individual or may himself construct a system so planned; provided, however, that the construction and installation of the water mains and sanitary sewer mains shall be supervised by inspectors of the city to see that the installation is made in accordance with the plans and the city’s standard specifications, which in every instance shall be a part of such installation contract.”
  • Local zoningPresent (with conditions)

    Land inside Forest Hill city limits.

    • The code states that Ordinance 2016-03-001 is the zoning ordinance and that it was adopted March 15, 2016, as amended.
    “Editor’s note–This article consists of the zoning ordinance, Ordinance 2016-03-001, adopted March 15, 2016, as amended.”
  • Zoning districtsPublished (with conditions)

    Zoning districts inside Forest Hill city limits.

    • District locations and boundaries are shown on the official zoning map, which is adopted by reference.
    • The city code identifies eleven districts: R-1, R-2, R-3, R-4, 2F, MF, LR, GB, LI, HI, and PD.

    number of zoning districts: 11

    “In order to regulate and restrict the location of trades, industries, and the location of buildings erected or structurally altered, to regulate and limit population density and the intensity of the use of lot areas and to regulate and determine the areas of yards, courts, and other open spaces within and surrounding such buildings, the city is hereby divided into eleven (11) districts.”
  • Minimum dwelling sizeDistrict specific (with conditions)

    R-1 Single-Family Detached Residential district inside Forest Hill city limits.

    • Applies to a single-family detached dwelling unit in the R-1 district; see also the schedule of districts in Division 7.

    minimum living area: >= 1800 square feet

    “This district shall allow for single-family detached dwelling units each located on one (1) lot containing a minimum of ten thousand (10,000) square feet and one thousand eight hundred (1,800) square feet of living area in the dwelling unit with maximum lot coverage being forty percent (40%). See also the schedule of districts, division 7 of this article.”
  • Minimum lot sizeDistrict specific (with conditions)

    R-1 Single-Family Detached Residential district inside Forest Hill city limits.

    • Applies to a single-family detached dwelling unit in the R-1 district; see also the schedule of districts in Division 7.

    minimum lot area: >= 10000 square feet

    “This district shall allow for single-family detached dwelling units each located on one (1) lot containing a minimum of ten thousand (10,000) square feet and one thousand eight hundred (1,800) square feet of living area in the dwelling unit with maximum lot coverage being forty percent (40%). See also the schedule of districts, division 7 of this article.”
  • Lot coverageDistrict specific (with conditions)

    R-1 Single-Family Detached Residential district inside Forest Hill city limits.

    • Applies to a single-family detached dwelling unit in the R-1 district; see also the schedule of districts in Division 7.

    maximum lot coverage: <= 40 percent

    “This district shall allow for single-family detached dwelling units each located on one (1) lot containing a minimum of ten thousand (10,000) square feet and one thousand eight hundred (1,800) square feet of living area in the dwelling unit with maximum lot coverage being forty percent (40%). See also the schedule of districts, division 7 of this article.”
  • Subdividing landRegulated (with conditions)

    Tracts or subdivisions proposed for final plat approval inside Forest Hill city limits.

    • Before final-plat approval, the owner must submit a map or plat showing required water and sanitary-sewer facilities.
    • If the plans do not provide adequate service and protection in the city's opinion, the plat may be denied.
    “Prior to the approval of any final plat, the owner of the tract or subdivision shall submit, to the same officer as plats are submitted to, a map or plat showing the location and size of water and sanitary sewer mains and valves and fire hydrants which will be required to ensure adequate service and fire protection to the lots specified in such proposed tract or subdivision.”
  • Driveway accessLimited

    R-1 Single-Family Detached Residential district inside Forest Hill city limits.

    • Applies to R-1 single-family development; the cited provision requires both a two-car garage and a two-car paved driveway.

    minimum driveway capacity: >= 2 cars

    “This district shall provide at the minimum two (2) car garage and two (2) car paved driveway.”
  • Permit feesPublished (with conditions)

    Permits for water or sanitary sewer improvements on public property within Forest Hill city limits.

    • Applies to construction, reconstruction, alteration, repair, removal, or replacement of water or sanitary-sewer improvements on public property.

    inspection permit fee: 3 percent of total contract price

    “No person shall be granted a permit to construct, reconstruct, alter, repair, remove or replace any water or sanitary sewer improvements on any public property without paying certain fees to the city for inspection of such work, which fees are established as three percent of the total contract price.”
  • Permit processPartial

    Water or sanitary sewer improvements on public property within Forest Hill city limits.

    • A permit must be obtained from the engineering department before the enumerated work.
    • The two-year maintenance bond under § 12.05.010 must be in full force and effect when the permit is requested and work is performed.
    “No person shall construct, reconstruct, alter, repair, remove or replace any water or sanitary sewer improvements on any public property within the city limits without first obtaining from the engineering department a permit to do so.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Forest Hill or Tarrant County directly.

  • Building permit — General residential building construction inside Forest Hill city limits.
  • Owner-builder exemption — Owner-built residential construction inside Forest Hill city limits.
  • Certificate of occupancy — Occupancy of structures inside Forest Hill city limits.
  • Setbacks — Development inside Forest Hill city limits.
  • Building height — Development inside Forest Hill city limits.
12 more unanswered
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Accessory dwellings
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Building in a floodplain
  • 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 Forest Hill publishes no rule on the point, not that none exists. Tarrant County’s page lists the county offices to call.

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