ADUs are allowed in TerrellTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Terrell, TX
Is your property eligible for an ADU?
# of Parcels
8,034
Zoning districts
18
Avg Parcel Value
$338,413
Median Parcel Size
0.21 acres
Zoning Districts:
8,090 parcels · 18 districts
SF-7.5
49%(3,972)
SF-6
16%(1,304)
PD
7%(559)
TH-12
6%(504)
Other
22%(1,751)
ADU Rules
What can you build in Terrell, TX?
Terrell, 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: By Right
Max Units
- –1 ADU per lot (residential zones).
- –Detached ADU: 1 per lot; Attached/internal ADU: none; JADU: none.
Owner Occupancy
- –ADU must be occupied by the main dwelling's household.
Parking
- –No ADU-specific parking; general off-street parking applies; two enclosed spaces required in AG/TX/EE-32/SF-16/SF-10/SF-7.5/SF-6; ADUs must be at rear, not sold/sublet, one per lot, for family/caretaker use.
Rental Restrictions
- –Detached ADU: Renting, subletting, or leasing prohibited; occupancy limited to a bona fide caretaker/servant/farm worker employed by the owner or a guest/family member.
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.
Kaufman County