ADUs are allowed in MesquiteTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Mesquite, TX
Is your property eligible for an ADU?
# of Properties
42,379
Owner-occupied
73%
Zoning districts
39
Avg Home Value
$307,449
Median Lot Size
0.17 acres
Avg Income
$88,010
Residential Types:
42,379 housing units
Single Family
96%
2-3 Family
2%
Apts (4+ units)
2%
Other
1%
Zoning Districts:
47,900 parcels · 39 districts
R-3
48%(22,942)
R-2A
30%(14,402)
C
4%(1,759)
GR
3%(1,272)
Other
16%(7,525)
ADU Rules
What can you build in Mesquite, TX?
Mesquite, TX follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: By Right
- –Detached ADU: By Right
Interior / Attached ADU Size Limits
- –Maximum internal/attached ADU size of 500 sq ft, or 1,000 sq ft on Agriculture-zoned lots larger than 1 acre; allowed only by Conditional Use Permit.
Detached ADU Size Limits
- –Maximum ADU size of 500 sq ft, or 1,000 sq ft on AG-zoned lots over 1 acre; approval is by Conditional Use Permit.
Max Units
- –1 accessory dwelling unit per property
Owner Occupancy
- –The property owner must live on the property.
Parking
- –Minimum 4 off-street spaces per property with an ADU (behind the front and exterior side lines, non-tandem); no max; ADU CUP required with lot size/owner-occupancy criteria; general standards: 2 spaces per unit plus a 2-car enclosed garage on lots platted after 10/1/1984 (total 4 spaces when an ADU is added).
Rental Restrictions
- –ADU shall not be rented or sold 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.
Dallas County