

ADU rules for Crystal City
Accessory Dwelling Unit (ADU) Rules for Crystal City, TX
Is your property eligible for an ADU?
# of Parcels
3,036
Zoning districts
1
Avg Parcel Value
$89,287
Median Parcel Size
0.21 acres
Zoning Districts:
1 parcel · 1 district
NZ
100%(1)
ADU Rules
What can you build in Crystal City, TX?
Crystal City, TX follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Not addressed in the local bylaw
- –Detached ADU: Not permitted
Owner Occupancy
- –No owner-occupancy requirement for ADUs.
Parking
- –1 space/ADU; on-site parking provided and maintained on the lot; no ADU-specific waivers; ADUs may not be permitted (accessory buildings can’t be used for dwelling except for domestic servants).
Rental Restrictions
- –Detached ADU dwelling use prohibited except for domestic servants employed on the premises; no leasing as a dwelling.
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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