ADUs are allowed in WestlakeTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Westlake, TX
Is your property eligible for an ADU?
# of Properties
779
Owner-occupied
2%
Zoning districts
34
Avg Home Value
$3,081,129
Median Lot Size
0.81 acres
Avg Income
$250,001
Residential Types:
779 housing units
Apts (4+ units)
5%
Other
95%
Zoning Districts:
1,490 parcels · 34 districts
R-1
23%(339)
PD3-1
20%(294)
PD1-2
18%(261)
PD1-3
8%(119)
Other
32%(477)
ADU Rules
What can you build in Westlake, TX?
Westlake, TX follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Conditional Use Permit
- –Detached ADU: Conditional Use Permit
Max Units
- –1 ADU in an outbuilding per lot + 1 dwelling in the principal building
Owner Occupancy
- –No owner-occupancy requirement.
Parking
- –Min: 1.5 spaces/ADU (2.0 Edge; 1.5 Core); no municipality-wide ADU minimum. Exceptions: Edge—1 unit per lot; Core/Civic—shared parking and on-street spaces may count; outside Town Center: no ADU-specific standard.
ADU State Law
What can you build in Texas?
- –Texas does not have a statewide ADU law. ADUs are regulated entirely at the local level.
- –ADU rules vary significantly by city, and many jurisdictions prohibit ADUs outright.
- –Counties generally lack zoning authority, but other restrictions may still apply outside city limits.
- –Outside city limits, ADU feasibility often depends on subdivision rules, deed restrictions, and septic or fire requirements.
- –Building/fire codes are set statewide, but whether an ADU is allowed is local zoning.
What's allowed on your lot?
These are the municipality-wide rules. What's allowed on a specific property also depends on state laws, setbacks, floor area ratio, lot coverage, environmental constraints, topography, and other property-specific factors. Search your address on FutureLot to see what's allowed on your property.
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Is your property eligible for an ADU?
ADU rules in other Texas municipalities
Rules change at the town line. Check the municipality your property is actually in.
Tarrant County