ADUs are allowed in KellerTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Keller, TX
Is your property eligible for an ADU?
# of Properties
14,609
Owner-occupied
1%
Zoning districts
32
Avg Home Value
$631,305
Median Lot Size
0.27 acres
Avg Income
$72,787
Residential Types:
14,609 housing units
Apts (4+ units)
2%
Other
98%
Zoning Districts:
17,441 parcels · 32 districts
SF-8.4
38%(6,674)
SF-36
16%(2,775)
SF-12
10%(1,764)
SF-20
9%(1,621)
Other
26%(4,607)
ADU Rules
What can you build in Keller, TX?
Keller, TX follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: By Right
- –Detached ADU: Special Permit
Detached ADU Size Limits
- –ADU size limited to 50% of the main structure’s area (combined accessory buildings cap; may be lower if other accessory buildings exist).
Max Units
- –SF: 2 detached accessory buildings per SF lot (ADUs included).
- –2F: 0 per lot (ADUs prohibited).
Owner Occupancy
- –No owner-occupancy restriction.
Parking
- –No ADU-specific parking minimum or maximum; for unlisted uses, Planning Manager applies the closest related standard; ADA spaces do not count toward minimums; parking must be on the same lot as the ADU
Rental Restrictions
- –Unrelated tenants not allowed; short-term rentals (<30 days) prohibited.
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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ADU rules in other Texas municipalities
Rules change at the town line. Check the municipality your property is actually in.
Tarrant County