ADUs are allowed in HelotesTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Helotes, TX
Is your property eligible for an ADU?
# of Properties
1,382
Owner-occupied
97%
Zoning districts
10
Avg Home Value
$454,445
Median Lot Size
0.77 acres
Avg Income
$107,424
Residential Types:
1,382 housing units
Single Family
100%
Zoning Districts:
1,643 parcels · 10 districts
R-1
89%(1,459)
OTHSD
3%(47)
B-3
3%(47)
B-2
2%(29)
Other
4%(61)
ADU Rules
What can you build in Helotes, TX?
Helotes, 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
- –In Old Town Helotes Special District, an in-home apartment may not exceed 50% of the principal building’s ground-floor area.
Detached ADU Size Limits
- –On single-family lots, the combined area allowed for all accessory buildings (including a detached ADU) is 800 sq ft on lots up to 1/2 acre; on larger lots it is the greater of 1,000 sq ft or 3% of lot area.
- –In the Old Town Helotes Special District, a detached ADU may not exceed 50% of the main building’s ground-floor area.
Max Units
- –0 per lot in R-TH (Townhouse Single-Family) and Garden Home Single-Family cluster developments
Owner Occupancy
- –Owner-occupancy required; ADU not for rental
Rental Restrictions
- –ALQs (Associated Living Quarters) shall not be used for commercial or rental purposes; renting ALQs is 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.
Bexar County