Zoning, building permits and septic rules in Haslet, Texas

At a glance

Zoning

Yes: Haslet's own ordinance with AG, R-1, R-2, commercial and industrial districts¹⁵

Building permits

Issued by the City of Haslet Building Services office²

Septic permits

Tarrant County OSSF program regulates septic systems in Haslet³

Minimum lot, R-1

1 acre (43,560 sq ft)⁶

Minimum lot, AG

3 acres⁷

Minimum home size, R-1

2,500 sq ft ground-floor living area⁸

Who to call

Contact details are copied from each office’s official page and were checked against it on October 14, 2026.

Does Haslet, Texas have zoning, and what does it mean for lot size and setbacks?

Yes. Haslet adopts a zoning ordinance with named districts: AG, R-1, R-2, commercial and industrial¹. The ordinance is the city's own, so it applies inside Haslet city limits and not on unincorporated Tarrant County land.

Dimensions depend on the district. In the AG agricultural district the minimum lot is 3 acres⁷. In R-1, the suburban large-lot district, the minimum lot is 43,560 sq ft (one acre), 60 feet wide and 100 feet deep⁶. R-1 homes need at least 2,500 sq ft of ground-floor living area⁸, front setbacks are 30 feet and street-side setbacks 15 feet⁹, buildings may cover at most 30% of the lot¹⁰, and height tops out at 35 feet to the eave and 45 feet to the roof¹¹. Rear and interior side setbacks, and the other districts, are worth confirming with Building Services².

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

The City of Haslet's Building Services office handles building permits and inspections inside city limits, and its page states that permits are required when building, remodeling, or enlarging a building². Haslet does not use Tarrant County for this: the county does not issue building permits or certificates of occupancy for residential homes even on unincorporated land¹².

We could not confirm Haslet's adopted building code edition, its permit fees or whether an owner-builder exemption exists. Ask Building Services before you design or price a house².

How do septic permits work inside Haslet?

Tarrant County, not the City of Haslet, regulates on-site sewage facilities in Haslet: the county's contract-city list names Haslet¹³. The Tarrant County OSSF program requires a permit for all new construction and for renovations that significantly change square footage or water flow¹⁴. Call the OSSF program at 817-212-7082³.

Texas also has a statewide 10-acre exemption for a single-family dwelling on at least 10 acres, with every TCEQ condition met¹⁵. Whether that exemption is usable inside Haslet city limits, where lots are far smaller, we could not confirm; ask the OSSF program.

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

We could not confirm Haslet's rules for RV occupancy, tiny homes, accessory dwellings or manufactured homes, because they depend on the use table in the city's zoning ordinance. Tarrant County's lack of zoning does not carry into the city, so do not assume these uses are allowed. Ask Haslet Building Services at 817-439-5931², and have the answer in writing for your zoning district before you buy.

What stays with Tarrant County, and what to check before you buy in Haslet?

Septic permits come from the county OSSF program¹³. The county's own rules, such as its 25-foot setback from county road right-of-way and 50 feet from state highways, are written for unincorporated land¹⁶; the Tarrant County page covers land outside city limits.

Before buying, check the district on the city's zoning map, any plat requirement, and flood status. County-level property tax in Tarrant County runs an effective 1.8% a year¹⁷.

Watch-outs

• Do not rely on Tarrant County's no-zoning answer for land inside Haslet; it covers only unincorporated areas outside city limits⁴.
• Land in a city's extraterritorial jurisdiction may need municipal plat approval before county review¹⁸; ask Haslet Building Services whether your parcel is inside city limits.

Sources

1. Article III: Zoning Districts - City of Haslet, TX (eCode360, Exhibit 14A Zoning Ordinance) (Haslet), quoted and re-checked
2. City of Haslet Building Services (haslet.org)
3. Tarrant County OSSF Program (Engineering Services) (tarrantcountytx.gov)
4. Guidelines for Development in the Unincorporated Areas of Tarrant County, quoted and re-checked
5. Article III: Zoning Districts - City of Haslet, TX (eCode360, Exhibit 14A Zoning Ordinance) (Haslet), quoted and re-checked
6. Article III: Zoning Districts - City of Haslet, TX (eCode360, Exhibit 14A Zoning Ordinance) (Haslet), quoted and re-checked
7. Article III: Zoning Districts - City of Haslet, TX (eCode360, Exhibit 14A Zoning Ordinance) (Haslet), quoted and re-checked
8. Article III: Zoning Districts - City of Haslet, TX (eCode360, Exhibit 14A Zoning Ordinance) (Haslet), quoted and re-checked
9. Article III: Zoning Districts - City of Haslet, TX (eCode360, Exhibit 14A Zoning Ordinance) (Haslet), quoted and re-checked
10. Article III: Zoning Districts - City of Haslet, TX (eCode360, Exhibit 14A Zoning Ordinance) (Haslet), quoted and re-checked
11. Article III: Zoning Districts - City of Haslet, TX (eCode360, Exhibit 14A Zoning Ordinance) (Haslet), quoted and re-checked
12. Guidelines for Development in the Unincorporated Areas of Tarrant County, quoted and re-checked
13. Tarrant County Environmental Health Contract Cities list (tarrantcountytx.gov)
14. On-Site Sewage Facility Permit, quoted and re-checked
15. Getting a Permit for an OSSF - Such as a Septic System (Texas statewide rule), quoted and re-checked
16. Guidelines for Development in the Unincorporated Areas of Tarrant County, quoted and re-checked
17. Effective property tax rate: Bolthole Index county data
18. Development, quoted and re-checked

Written October 14, 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.