ADUs are allowed in ManvelTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Manvel, TX
Is your property eligible for an ADU?
# of Properties
30
Owner-occupied
0%
Zoning districts
12
Avg Home Value
$707,941
Median Lot Size
5.26 acres
Avg Income
$112,721
Residential Types:
30 housing units
2-3 Family
100%
Zoning Districts:
7,645 parcels · 12 districts
PUD
40%(3,082)
O-SFR
19%(1,454)
O-PUD
18%(1,343)
SFR
17%(1,270)
Other
6%(496)
ADU Rules
What can you build in Manvel, TX?
Manvel, 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: SFR lots under 1 acre are capped at 650 sq ft; O-SFR and SFR lots 1 acre or larger are capped at the greater of 650 sq ft or 20% of the principal dwelling’s first-story area.
Detached ADU Size Limits
- –Maximum conditioned-space for a detached ADU: 650 sq ft on single-family lots under 1 acre; in O‑SFR or on single‑family lots 1 acre or larger, the greater of 650 sq ft or 20% of the principal structure’s first story.
Max Units
- –Single-family lots (O-SFR, SFR, single-family PUD): 1 ADU per lot
Owner Occupancy
- –Owner must occupy the ADU
Parking
- –1 space/ADU; max not specified. SFR: 1 enclosed garage space per unit; O-SFR: 1 off-street space per unit; no ADU-specific waivers or transit reductions.
Rental Restrictions
- –Renting ADUs is prohibited (lease or rent) for both detached and attached ADUs.
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.
Brazoria County