Overview
Code type
no-zoning
Naming convention
n/a
Houston is the largest US city without Euclidean zoning. Land use is governed by (a) private deed restrictions enforced by the City via Chapter 212 Tex. Local Gov. Code authorization, (b) Chapter 42 of the Code of Ordinances for lot/setback/platting standards, (c) historic districts under Chapter 33 Article VII, and (d) the Major Thoroughfare and Freeway Plan (MTFP) for corridor setbacks. The base_districts[] array captures Chapter 42 'Urban'/'Suburban' lot standards (by Loop 610 geography), not use-based zones.
Districts
mu 2res_th 1
| Code | Name | Category | Min lot | Height | Coverage | FAR | Du/ac | Parking | Setbacks F/S/R |
|---|---|---|---|---|---|---|---|---|---|
| URBAN | Urban (Inside Loop 610) | mu | 1,400 sf[4] | -1 ft[5] | 0.8[6] | — | — | 1.25[7] | 10[1] / 5[2] / 5[3] |
| SUBURBAN | Suburban (Outside Loop 610) | mu | 5,000 sf[11] | -1 ft[12] | 0.65[13] | — | — | 1.33[14] | 25[8] / 5[9] / 10[10] |
| TH-U | Townhouse/Patio (Urban) | res_th | 1,400 sf[18] | -1 ft[19] | 0.9[20] | — | — | 2[21] | 10[15] / 0[16] / 5[17] |
Confidence: confirmed partial under review not found
Overlays
HD
Houston Heights Historic Districts — Historic Preservation
HPSMLS-SMBL
Special Minimum Lot Size / Special Minimum Building Line
CONMTFP
Major Thoroughfare and Freeway Plan (MTFP) Setbacks
CORState preemptions
TX HB 2127applies
Qualifying condition
HB 2127 is statewide and applies to every Texas home-rule city including Houston (pop 2,314,000, Census PEP 2023 vintage). Preempts municipal ordinances in fields regulated by the Agriculture, Business & Commerce, Finance, Insurance, Labor, Natural Resources, Occupations, and Property Codes. Property Code §§ governing landlord-tenant, plats, and recorded restrictions intersect with Houston's Chapter 42 plat regime. HB 2127 took effect 2023-09-01; a 2023 state district court ruled portions unconstitutional, but the Third Court of Appeals stayed enforcement in favor of the state — law is currently in force pending further appeals.
TX HB 3699applies
Qualifying condition
HB 3699 applies statewide to cities that attempt to prohibit short-term rentals (STRs) or restrict them based on use-classification. Houston has no zoning, so a city-wide use-based STR ban is impossible, but Chapter 42 plat-level tools and deed restrictions can effectively restrict STRs. HB 3699 limits the City's enforcement role in deed-restriction cases involving STR use — City Legal Department (§10-551) cannot enforce a deed restriction whose purpose is to prohibit STRs. Effective 2023-09-01.
TX SB 15applies
Qualifying condition
SB 15 applies to lots ≤4,000 sf statewide in cities with populations over 150,000. Houston qualifies on population (Census PEP 2023: 2,314,000 ≥ 150,000). Houston's Chapter 42 Urban category already permits 1,400 sf minimum lots, and townhouse/patio lots start at 1,400 sf — many existing platted lots fall under the 4,000 sf SB 15 threshold.
Non-applicable laws (1)
TX SB 840confirmed
Qualifying condition
SB 840 qualifying conditions — city pop ≥150,000 AND county pop ≥300,000 — are met (Houston pop 2,314,000 per Census PEP 2023; Harris County 4,780,913 per Census PEP 2023). However, SB 840's operative text applies to C (commercial), O (office), R (retail), W (warehouse), and MU (mixed-use) ZONING DISTRICTS. Houston has no zoning districts of any kind. Chapter 42 'Urban'/'Suburban' are lot/setback categories, not use districts. SB 840 therefore has no zoning classes to attach to in Houston; applicability is facial-zero.
Adopted building codes
Home rule; major cities on 2024 IBC
Click a code label to open its state-by-state adoption atlas.
Quirks & notes
Formulas
Definitions
- height
- Grade to highest point of structure; unlimited in most of the city absent FAA Part 77 / airport hazard overlay.
- lot_coverage
- Building footprint / lot area.
- far
- Gross floor area / lot area — Chapter 42 does not set a FAR; not_applicable citywide.
- du_ac
- Dwelling units per gross acre — Chapter 42 does not set a du/ac cap; density is controlled indirectly via minimum lot size.
- setback_front
- Front property line to nearest building face (Chapter 42 calls this the 'building line').
- setback_side
- Side property line to nearest building face.
- setback_rear
- Rear property line to nearest building face.
- parking
- Off-street spaces per dwelling unit per Chapter 26 (Parking).
Capacity calculations
- max_footprint_sf
lot_area_sf * lot_coverage- max_units
lot_area_sf / min_lot_sf- far_not_applicable
Houston Chapter 42 does not regulate FAR; bulk is controlled via lot size + building lines + parking.
Massing explorer
Interactive 3D comparison across every district. Drag to orbit, scroll to zoom, use the slider to walk districts, and toggle applicable overlays in the right-side panel.
Sort by
Max height
— ft
——
Floor area ratio
—
——
Lot coverage
—%
——
Setbacks (F / S / R)
— ft
——
Parking
— /unit
——
Max density
— du/ac
——
Min lot size
— sf
——
Copy zoning profile
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| District | Category | Height | FAR | Coverage | Setbacks | Parking | Density | Min lot | Overlays |
|---|
Sources & references
Citations
- [1] §42-186
- [2] §42-186
- [3] §42-186
- [4] §42-181
- [5] §42-1
- [6] i§42-186
- [7] §26-492
- [8] §42-186
- [9] §42-186
- [10] §42-186
- [11] §42-181
- [12] §42-1
- [13] i§42-186
- [14] §26-492
- [15] §42-189
- [16] §42-189
- [17] §42-189
- [18] §42-189
- [19] §42-1
- [20] i§42-189
- [21] §26-492
Research status
Publication gates
| primary url present | passed | |
|---|---|---|
| no aggregator cited | passed | |
| confidence tags full form | passed | |
| overlays have parameters trigger confidence | passed | |
| preempt section city specific | passed |
Data quality
78%completeness19 confirmed3 inferred
Documented gaps
- Use-based districts do not exist — intentionally empty, not a data gap.
- Per-district historic design guidelines (22 districts) not individually captured; see HAHC-published district handbooks for parcel-level work.
- Exact lot-coverage percentages are inferred from §42-186/§42-189 setback geometry; Chapter 42 does not state them as explicit percents.
- Chapter 26 parking table retrieved at category level; per-use detail (retail sf-per-space, restaurant seat-ratios) not captured in this profile — handled at site-design stage.
Known issues
data:gaps-present
Verification
| last_verified_at | 2026-04-19T00:00:00Z |
|---|---|
| verifier_specialist | verification-pass |
| verifier_version | 1.0 |
| verification_result | passed |
| atomic_claims_checked | 34 |
| atomic_claims_passed | 34 |
| atomic_claims_failed | 0 |
| failed_claims | |
| narrative_ref | narratives/houston-tx/houston-2026-04-19-v2.json |
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