

ADUs are allowed in HeathTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Heath, TX
Is your property eligible for an ADU?
# of Properties
71
Owner-occupied
54%
Zoning districts
15
Avg Home Value
$1,391,946
Median Lot Size
6.75 acres
Avg Income
$189,397
Residential Types:
71 housing units
2-3 Family
100%
Zoning Districts:
3,298 parcels · 15 districts
SF-15
28%(908)
PD-SF
25%(810)
SF-43
25%(809)
SF-22
13%(422)
Other
11%(349)
ADU Rules
What can you build in Heath, TX?
Heath, 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
Detached ADU Size Limits
- –Maximum detached ADU size by lot size: 900 sq ft (1–<2 acres), 1,200 sq ft (2–<3 acres), 2,000 sq ft (3+ acres).
Max Units
- –1 detached ADU per lot (A; SF-43). 1 single detached guest unit per lot (SFE-3.0)
Owner Occupancy
- –No owner-occupancy requirement.
Parking
- –2 paved off-street spaces per dwelling unit; no max; on-street spaces cannot count; must be on the same lot; enclosed garage spaces do not count; ADUs follow the general residential parking standard (no ADU-specific rule).
Rental Restrictions
- –Detached ADU may not be rented separately from the residence; SF-22 guest houses/servant's quarters may not be leased or rented; internal servant's quarters cannot be rented; attached ADU may not be rented separately.
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.
Rockwall County