ADUs are allowed in FulshearTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Fulshear, TX
Is your property eligible for an ADU?
# of Properties
2,336
Owner-occupied
93%
Zoning districts
7
Avg Home Value
$627,797
Median Lot Size
0.20 acres
Avg Income
$160,692
Residential Types:
2,336 housing units
Residential Interior
100%
Zoning Districts:
3,909 parcels · 7 districts
SU
71%(2,772)
DD
10%(385)
PUD
7%(278)
ER
7%(267)
Other
5%(207)
ADU Rules
What can you build in Fulshear, TX?
Fulshear, 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
Interior / Attached ADU Size Limits
- –Maximum size of 25% of the principal dwelling's gross floor area
Detached ADU Size Limits
- –Maximum detached ADU size is 40% of the principal dwelling’s gross floor area.
Owner Occupancy
- –Either the principal or accessory unit must be occupied by the owner.
Parking
- –1 space per bedroom for ADUs in ER/SR; no max; ADUs are conditional uses with parking set in district tables; no citywide reductions or waivers; parking must be provided prior to permit issuance.
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.
Fort Bend County