ADU rules for Fredericksburg
Accessory Dwelling Unit (ADU) Rules for Fredericksburg, TX
Is your property eligible for an ADU?
# of Parcels
5,627
Zoning districts
15
Avg Parcel Value
$678,660
Zoning Districts:
5,601 parcels · 15 districts
R1
53%(2,961)
R2
15%(822)
C2
7%(377)
PUD
6%(351)
Other
19%(1,090)
ADU Rules
What can you build in Fredericksburg, TX?
Fredericksburg, 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
Max Units
- –1 guest house per lot (R-1; on lots 10,000+ sq ft; owner-occupied; size not exceeding the primary structure)
Owner Occupancy
- –Owner must reside on the property as their primary residence.
Rental Restrictions
- –STR-ADU only; permitted districts; STR permit required; not allowed where STR table is blank. STR-ADU occupancy requires owner-occupancy or primary residence of the 24-hour contact (Sec. 8.220).
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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