

ADUs are allowed in Cedar HillTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Cedar Hill, TX
Is your property eligible for an ADU?
# of Properties
17,357
Owner-occupied
72%
Zoning districts
25
Avg Home Value
$378,283
Median Lot Size
0.20 acres
Avg Income
$109,360
Residential Types:
17,357 housing units
Single Family
94%
2-3 Family
2%
Apts (4+ units)
2%
Other
2%
Zoning Districts:
19,740 parcels · 25 districts
PD
46%(9,137)
SF-7
19%(3,822)
SF-8.5
8%(1,589)
SF-E
7%(1,348)
Other
19%(3,844)
ADU Rules
What can you build in Cedar Hill, TX?
Cedar Hill, 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
- –Residential (including single-family & TH): 1 ADU per lot (any type)
Owner Occupancy
- –Owner-occupancy not required.
Parking
- –2 spaces/ADU; max 2 spaces (110% of minimum); on-site parking required; reinforced-concrete paving for parking; no ADU-specific waivers (transit or conversions)
Rental Restrictions
- –ADUs shall not be sublet or leased; no short- or long-term rentals allowed.
- –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.
Dallas County