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ADU rules for Marlin

Accessory Dwelling Unit (ADU) Rules for Marlin, TX

Is your property eligible for an ADU?

# of Parcels
4,183
Zoning districts
8
Avg Parcel Value
$82,974
Zoning Districts:
4,301 parcels · 8 districts
UNK
88%(3,782)
C2
8%(365)
NZ
2%(67)
R4200
1%(44)
Other
1%(43)

ADU Rules

What can you build in Marlin, TX?

Marlin, TX follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.

Parking

  • 2 spaces/ADU; unlisted uses apply the residential standard (2 per dwelling unit); C-3 is exempt from off-street parking; required parking, if any, may be provided on the lot or within 150 feet and must be off-street.

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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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.

Falls County

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