ADUs are allowed in VernonTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Vernon, TX
Is your property eligible for an ADU?
# of Parcels
5,903
Zoning districts
12
Avg Parcel Value
$142,102
Median Parcel Size
0.19 acres
Zoning Districts:
5,865 parcels · 12 districts
R-G
29%(1,723)
R-1
28%(1,659)
R-2
20%(1,180)
C-C
9%(509)
Other
14%(794)
ADU Rules
What can you build in Vernon, TX?
Vernon, 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 size is the greater of 500 sq ft or 30% of the primary dwelling’s floor area (garage area excluded where known); conversions of existing structures are exempt by code.
Detached ADU Size Limits
- –Maximum size is the greater of 500 sq ft or 30% of the primary dwelling’s floor area (garages excluded from that floor area); existing-structure conversions are exempt.
Max Units
- –Single-family detached: 1 ADU/lot (attached or detached)
- –Duplex/multifamily: 0 ADUs
Owner Occupancy
- –Property owner must occupy either the primary residence or ADU
Parking
- –1 space/ADU; no max; general off-street parking standards apply (no ADU-specific reductions).
Rental Restrictions
- –It shall be unlawful to lease both the primary dwelling and the ADU; owner must occupy one of the two units; short-term rentals (<30 days) require an STR permit; renting without a valid STR permit is unlawful.
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.
Check my propertyHow can we help you?
Get matched with trusted local builders
Understand what's allowed on your property
Learn the key rules and size limits for ADUs