ADUs are allowed in FlorenceTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Florence, TX
Is your property eligible for an ADU?
# of Properties
346
Owner-occupied
43%
Zoning districts
14
Avg Home Value
$203,086
Median Lot Size
0.33 acres
Avg Income
$86,327
Residential Types:
346 housing units
Residential
100%
Zoning Districts:
552 parcels · 14 districts
SF-1
52%(286)
MU
16%(86)
CBD
6%(33)
SF-MH
5%(29)
Other
21%(118)
ADU Rules
What can you build in Florence, TX?
Florence, 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 is 50% of the principal dwelling’s floor area
Detached ADU Size Limits
- –Maximum size of 50% of the main building square footage
Max Units
- –1 ADU per lot (incl. garage accessory & detached)
Owner Occupancy
- –ADU occupied only by owner's household staff or guest/family member.
Parking
- –1 space per ADU; no max; must be on the same site and on a paved surface in residential districts; no ADU-specific exemptions or transit-based reductions
Rental Restrictions
- –ADUs shall not be leased or sublet; no short- or long-term rentals permitted
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.
Williamson County