ADU Rules: Bellaire vs Humble
How do adu rules rules compare between Bellaire, TX and Humble, TX?
Humble has fewer restrictions than Bellaire.
Bellaire, TX
Harris County
Bellaire is a single-family residential enclave inside Houston that does not permit detached accessory dwelling units (ADUs) as separate residences in its R-1, R-3, and R-4 single-family districts. Chapter 24 of the City Code (adopted under Texas Local Government Code Chapter 211 zoning authority) defines an 'accessory use' as one that is 'subordinate and incidental to and serves a principal building' (Sec. 24-202(2)) and a 'single-family dwelling' as a structure for one family (Sec. 24-202(60)). Accessory uses and structures are governed by Sec. 24-510. Many Bellaire subdivisions also impose deed restrictions explicitly prohibiting garage apartments and apartment uses.
View full Bellaire rules →Humble, TX
Harris County
No Humble-specific ADU ordinance was found. ADUs in Texas are not mandated by state law (unlike California). Zoning district rules under Chapter 9 govern secondary dwellings.
View full Humble rules →Key Facts Comparison
| Fact | Bellaire | Humble |
|---|---|---|
| Zoning Authority | Texas LGC Ch. 211 (home-rule city) | - |
| Single-Family Districts | R-1, R-3, R-4, R-5 | - |
| Accessory Uses | Sec. 24-510 (subordinate to principal use) | - |
| Family Definition | Sec. 24-202(67) — 1 family, max 2 unrelated | - |
| Accessory Side Yard | Min 3 ft (rear yard placement) | - |
| Deed Restrictions | Many subdivisions ban garage apartments | - |
| Permits | Bellaire Development Services 713-662-8240 | - |
| State Law | - | No TX statewide ADU mandate |
| City Ordinance | - | None identified publicly |
| Zoning Code | - | Chapter 9 — Planning and Development Regulations |
| Contact | - | Building Dept: (281) 446-6139 |
Highlighted rows indicate differences between cities.
Bellaire FAQ
Can I build a separate ADU or garage apartment in Bellaire?
Bellaire's single-family zoning districts (R-1, R-3, R-4) do not authorize a second independent dwelling on a single-family lot. Accessory structures must be 'subordinate and incidental' to the main residence under Sec. 24-510 and many subdivisions' deed restrictions specifically prohibit garage apartments. Contact Bellaire Development Services at 713-662-8240 before designing any habitable accessory space.
Does Texas state law force Bellaire to allow ADUs?
No. Texas has not enacted general statewide ADU preemption — proposals like SB 673 (89R) and SB 1412 (88R) did not become law. Bellaire retains full zoning authority under Texas Local Government Code Chapter 211 to limit single-family districts to one principal dwelling per lot.
Humble FAQ
Can I build an ADU on my property in Humble?
No Humble-specific ADU ordinance was found. ADUs in Texas are not mandated by state law (unlike California). Zoning district rules under Chapter 9 govern secondary dwellings.
What are the size limits for an accessory dwelling unit in Humble?
State Law: No TX statewide ADU mandate. City Ordinance: None identified publicly. Zoning Code: Chapter 9 — Planning and Development Regulations. Contact: Building Dept: (281) 446-6139.
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