ADU Rules in Houston, TX — 2026 Guide
Check if your Houston property qualifies for an ADU in 20 seconds
Houston ADU Rules at a Glance
Houston has limited ADU support. Here is what you need to know.
- Houston has no zoning code, but deed restrictions often prohibit ADUs in subdivisions.
- Minimum lot size of 1,400 sqft required for any new structure.
- ADU permitting handled through standard residential building permits.
- No statewide ADU legislation — rules vary by deed restriction and HOA.
What ReadyPermit Checks for Houston Properties
Enter any Houston address and get an instant ADU feasibility analysis covering:
Zoning Compliance
Verify your Houston lot is zoned for ADU construction under current TX and local rules.
Setbacks & Coverage
Check required setbacks, lot coverage limits, and height restrictions for your specific parcel.
ADU Size Limits
Calculate the maximum ADU square footage allowed based on your lot size and primary dwelling.
Permit Requirements
Understand what permits and approvals Houston requires before you can break ground.
Flood & Hazard Zones
Identify if your property falls in a flood zone, fire zone, or other hazard overlay.
Lot & Parcel Data
Pull parcel boundaries, lot dimensions, and existing structures from county records.
Check Your Houston Property Free
Enter your address below. In under 20 seconds you will know if your Houston lot qualifies for an ADU — no phone calls, no waiting.
No credit card required. Instant results.