

ADU rules for Richwood
Accessory Dwelling Unit (ADU) Rules for Richwood, TX
Is your property eligible for an ADU?
# of Parcels
1,216
Zoning districts
7
Avg Parcel Value
$367,671
Median Parcel Size
0.27 acres
Zoning Districts:
1,213 parcels · 7 districts
R-1
86%(1,047)
C-1
11%(137)
B-1
2%(19)
R-2
0%(4)
Other
0%(6)
ADU Rules
What can you build in Richwood, TX?
Richwood, 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 permitted
Max Units
- –0 ADUs per lot (all districts: R-1, R-1A, R-1B, R-2, R-3, R-4)
Owner Occupancy
- –No owner-occupancy requirement for ADUs.
Parking
- –2 spaces/dwelling unit; applies to ADUs if permitted under general off-street parking rules; garage apartments not allowed in R-1, R-1A, R-1B, R-2, R-3; R-4 detached servants' quarters not rented/leased/sold; not separately metered
Rental Restrictions
- –Detached servants' quarters may not be rented or leased.
- –Guesthouses without kitchens are not for permanent occupancy and not for rental.
- –Garage apartments are not allowed; internal ADUs may be occupied only by a servant.
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.
Brazoria County