ADUs are allowed in Cedar ParkTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Cedar Park, TX
Is your property eligible for an ADU?
# of Properties
16,555
Owner-occupied
76%
Zoning districts
25
Avg Home Value
$477,749
Median Lot Size
0.19 acres
Avg Income
$130,569
Residential Types:
16,555 housing units
Single Family
1%
Other
99%
Zoning Districts:
19,077 parcels · 25 districts
SU
57%(10,917)
SR
12%(2,224)
PD
11%(2,055)
UR
6%(1,072)
Other
15%(2,809)
ADU Rules
What can you build in Cedar Park, TX?
Cedar Park, 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
Interior / Attached ADU Size Limits
- –Maximum size of 25% of the principal dwelling’s cooled floor area (uses habitable floor area when available)
- –Maximum size of 400 sq ft
Detached ADU Size Limits
- –Maximum size of 650 sq ft gross floor area for a detached ADU
Max Units
- –Single-family detached: max 1 ADU (attached or detached).
- –Attached single-family or multifamily: 0 ADUs.
Owner Occupancy
- –ADU must be owned by the same owner as the principal dwelling
Parking
- –Min 1 space/ADU; max none.
- –Exceptions: In Town Center Mixed Residential Area, parking may require extra spaces; ADU parking must be in the side or rear yard and be accessible by alley if abutting; a second off-street space may be required for an ADU.
Rental Restrictions
- –Rentals prohibited: ADUs may not be rented or sublet or sold separately from the sale of the entire property; occupancy limited to the same person or persons of the immediate family, or any authorized employees on the premises; no short-term rental allowance is provided.
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.
Williamson County