ADU rules for Highland Park
Accessory Dwelling Unit (ADU) Rules for Highland Park, TX
Is your property eligible for an ADU?
# of Properties
3,434
Owner-occupied
80%
Zoning districts
16
Avg Home Value
$4,148,049
Median Lot Size
0.23 acres
Avg Income
$236,300
Residential Types:
3,434 housing units
Single Family
86%
2-3 Family
2%
Apts (4+ units)
4%
Other
8%
Zoning Districts:
3,650 parcels · 16 districts
D
41%(1,505)
E
23%(836)
C
11%(415)
G
8%(297)
Other
16%(597)
ADU Rules
What can you build in Highland Park, TX?
Highland Park, 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 addressed in the local bylaw
Rental Restrictions
- –Detached ADUs: Renting any accessory building is prohibited; no kitchen facilities allowed.
- –Attached ADUs: Cannot be rented; no kitchen facilities.
- –One-family dwellings: No portion may be rented to anyone outside the immediate family.
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.
Check my propertyHow can we help you?
Get matched with trusted local builders
Understand what's allowed on your property
Learn the key rules and size limits for ADUs
Is your property eligible for an ADU?
ADU rules in other Texas municipalities
Rules change at the town line. Check the municipality your property is actually in.
Dallas County