County building permit guide
Harris County, Texas building permits — complete guide (2026)
Harris County encompasses Houston — the only major US city with no zoning code. Construction is governed entirely by building codes and deed restrictions, making it one of the most builder-friendly environments in America. The county and city operate separate permit systems: the City of Houston handles incorporated areas while Harris County covers the vast unincorporated zone. Combined, Harris County issues more residential permits than any other county in Texas.
Avg cost: $150–$500Processing: 2–5 weeksNo zoning code~4.8M residents
$150–$500Avg permit cost
2–5 weeksProcessing time
~45,000Permits/year
YesADU-friendly
Ready to apply for your Harris County, Texas permit?
Apply through the City of Houston's online permitting system (City of Houston PermitHouston) for incorporated areas. For unincorporated Harris County, use the Harris County Engineering portal.
Harris County, Texas Building Department Online permitting available
DepartmentCity of Houston Dept of Neighborhoods — Permit Center
Websitewww.houstontx.gov/permits/ ↗
Phone(713) 274-3920
Address1002 Washington Ave, Houston, TX 77002
HoursMon–Fri 8:00am–5:00pm CT
Permit systemPermitHouston online portal
The City of Houston Permit Center covers incorporated Houston. Harris County Engineering covers unincorporated Harris County — a massive area including Pasadena, Pearland, Katy (partially), and communities along the Ship Channel. These are two entirely separate systems with different fee schedules.
Houston has NO zoning code — the only major US city without one. Development is regulated through deed restrictions, building codes, and subdivision rules. Always check deed restrictions before designing your project — they are enforced by neighborhood civic clubs and can be more restrictive than any zoning would be.
Permit fees — Harris County, Texas 2026
| Permit type | Fee range | Processing | Notes |
|---|---|---|---|
| New Construction | $800–$2,500 | 3–8 weeks | Houston's no-zoning policy makes new construction faster to approve than most major cities |
| Room Addition | $400–$1,000 | 2–5 weeks | Check deed restrictions first — civic clubs enforce them aggressively in many neighborhoods |
| Pool | $200–$550 | 2–4 weeks | Highest pool permit volume in Texas; safety fence required; gas line permit separate |
| Roofing | $150–$350 | 1–3 days | Storm damage is a major driver — hail and hurricane season generate surge volume |
| Electrical | $75–$200 | 1–3 days | Panel upgrades common in older Houston neighborhoods; EV charger permits growing |
| Plumbing | $50–$150 | 1–3 days | Backflow prevention required for irrigation; water heater always requires permit |
| HVAC / Mechanical | $75–$220 | 1–3 days | High AC demand — like-for-like replacements often approved same day online |
| ADU | $300–$700 | 2–4 weeks | Houston actively allows ADUs; no zoning barriers; deed restrictions may apply |
| Solar | $75–$200 | 1–2 weeks | SolarAPP+ accepted by Houston for instant approval on standard residential installs |
| Fence | $55–$130 | 1–5 days | Deed restrictions often govern fence height and materials more than city code |
How to get a permit in Harris County, Texas
1
Check deed restrictions first
Houston has no zoning but most neighborhoods have deed restrictions enforced by civic clubs. Download your deed restrictions from HCAD before designing your project — they may limit uses, structures, and appearances.
2
Determine City of Houston vs Harris County jurisdiction
Use the Harris County Appraisal District (HCAD) map to confirm whether your address is in the city or unincorporated county. The systems and fee schedules differ significantly.
3
Apply online through PermitHouston
The City of Houston's PermitHouston portal handles most residential permits. Many trade permits (electrical, mechanical, plumbing) can be issued over-the-counter or same-day online.
4
Submit plans for structural review
Room additions, new construction, and structural changes require plan review. Houston typically processes residential plans in 2–4 weeks. Third-party plan review is available for faster processing.
5
Schedule inspections
Houston offers online inspection scheduling through PermitHouston. Trade inspections are typically available within 1–3 business days. Phased construction requires inspections at each stage.
6
Obtain Certificate of Occupancy
New construction requires a CO before occupancy. Additions and renovations receive a Certificate of Completion. Keep all permit records — they are essential for home sales and insurance claims.
Jurisdictions within Harris County, Texas
Special zone requirements
No Zoning
Entire city of Houston
Houston is the only major US city without zoning. Building codes govern construction, but land use is controlled only by deed restrictions and subdivision regulations.
Flood Zone AE
Bayous and low areas
Harris County has extensive FEMA flood zones along Buffalo Bayou, Brays Bayou, and other waterways. Hurricane Harvey (2017) revealed significant flood risk — elevation certificates required in flood zones.
Hurricane Risk
Coastal proximity
Houston is ~50 miles from Galveston Bay. Hurricane season (June–Nov) drives surge demand for roofing, fencing, and storm damage repair permits.
ETJ Zone
Houston city limits edge
Houston's Extra-Territorial Jurisdiction extends 5 miles beyond city limits. Subdivision regulations but not building codes apply in the ETJ.
Frequently asked questions — Harris County, Texas
Why doesn't Houston have zoning?
Houston voters rejected zoning in referendums in 1948, 1962, and 1993. Instead, the city uses building codes, subdivision regulations, and privately-enforced deed restrictions. This makes Houston one of the most builder-friendly major cities in the US — new construction can happen faster here than almost anywhere else.
What are deed restrictions and how do they affect my permit?
Deed restrictions are private covenants attached to property titles that govern land use, building appearance, and structure types. In Houston, they replace zoning and are enforced by neighborhood civic associations. A permit from the city doesn't override deed restrictions — always check HCAD for your property's deed restrictions before starting a project.
How has Hurricane Harvey affected Houston permitting?
Harvey (2017) flooded 154,000 structures and transformed Houston's approach to flood management. The city has since updated floodplain maps, tightened flood zone construction requirements, and made Substantial Improvement rules more strictly enforced. Properties in the floodplain must now be elevated higher than pre-Harvey standards for new construction and major renovations.
Can I build an ADU in Houston?
Yes. Houston's no-zoning environment makes ADU development easier than most major cities. There are no zoning barriers to adding a garage apartment or backyard cottage. Check deed restrictions for your neighborhood — some subdivisions prohibit secondary structures. Building code and impervious cover requirements still apply.
Sources: City of Houston Permits fee schedule 2026 · Harris County Engineering · IBC/IRC 2021 · FEMA NFHL (post-Harvey) · US Census Bureau BPS 2024 · Shovels.ai permit aggregator