ADUs are allowed in Port AransasTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Port Aransas, TX
Is your property eligible for an ADU?
# of Parcels
9,523
Zoning districts
13
Avg Parcel Value
$3,290,134
Zoning Districts:
9,468 parcels · 13 districts
POS
26%(2,499)
C-2
19%(1,766)
R-2
14%(1,281)
R-1
12%(1,158)
Other
29%(2,764)
ADU Rules
What can you build in Port Aransas, TX?
Port Aransas, 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 ADU size is less than 600 sq ft of air-conditioned living space
Detached ADU Size Limits
- –Maximum size must be less than 600 sq ft of air-conditioned living space; garage area excluded.
Max Units
- –Single-family: 1 ADU/lot (attached or detached)
- –Duplex/multifamily: 0 ADUs
Owner Occupancy
- –No owner-occupancy required to establish an ADU.
Parking
- –1 space per ADU bedroom (in addition to the primary dwelling's parking); tandem/stacked allowed if assigned; reductions via Alternative Parking Plan with City Council approval
Rental Restrictions
- –Short-term rentals (<30 days) prohibited unless owner on site, ADU designated as homestead, and rented before 8/5/2021 with taxes filed; allowance ends 8/5/2026 or on post-8/5/2021 title transfer. ADU rentals not allowed unless separate utility meters installed. Transient rentals of ADUs from flexible development bonus are prohibited.
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.
Nueces County