ADUs are allowed in GrangerTypes:Internal
Types:Internal
Accessory Dwelling Unit (ADU) Rules for Granger, TX
Is your property eligible for an ADU?
# of Properties
509
Owner-occupied
38%
Zoning districts
7
Avg Home Value
$198,199
Median Lot Size
0.24 acres
Avg Income
$66,471
Residential Types:
509 housing units
Residential
100%
Zoning Districts:
794 parcels · 7 districts
S1
72%(573)
C1
11%(89)
M1
9%(70)
SCH
3%(21)
Other
5%(41)
ADU Rules
What can you build in Granger, TX?
Granger, 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: Not permitted
Interior / Attached ADU Size Limits
- –Maximum size is 25% of the existing floor area of the main building for an internal accessory apartment within a single-family detached dwelling (conditional use).
Max Units
- –Single-family detached (SF): 1 internal accessory apartment per dwelling
Parking
- –No ADU-specific rate; off-street parking per Article VI (general residential standards, e.g., 2 spaces per single-family dwelling); spaces must be on the same lot; conversions trigger compliance.
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