ADU Rules: Katy vs Sugar Land
How do adu rules rules compare between Katy, TX and Sugar Land, TX?
Katy and Sugar Land have similar restriction levels.
Katy, TX
Fort Bend County
Katy's Zoning Ordinance defines an Accessory Dwelling Unit as a unit accessory to a principal single-family residence, used only by family members, guests, or employees working within the residence; commercial use is prohibited.
View full Katy rules →Sugar Land, TX
Fort Bend County
Sugar Land permits accessory dwelling units (accessory quarters) in R-1, R-1R, and R-1E districts, limited to 600 square feet of living space. The accessory quarters may be located within the principal building or as part of a detached garage. A building permit is required.
View full Sugar Land rules →Key Facts Comparison
| Fact | Katy | Sugar Land |
|---|---|---|
| Allowed Use | Family, guests, employees only | - |
| Commercial Use | Prohibited | - |
| Utilities | Single metering with main house | - |
| Kitchen/Bath | Allowed | - |
| Separate Entrance | Allowed | - |
| Permit Contact | 281-391-4830 | - |
| Eligible Zones | - | R-1, R-1R, R-1E |
| Max Living Space | - | 600 sq ft |
| Location | - | In principal building or detached garage |
| Permit Required | - | Yes |
Highlighted rows indicate differences between cities.
Katy FAQ
Can I rent out an ADU in Katy as a separate apartment?
No. Katy's zoning ordinance limits ADU occupancy to family members, guests, or employees working within the principal residence and prohibits commercial use.
Does an ADU need its own electric and water meter?
No. The ordinance requires the principal dwelling and accessory unit to be on single utility metering.
Are ADUs allowed throughout Katy?
Katy's ADU definition is in the citywide zoning ordinance, but subdivision deed restrictions and HOA covenants frequently prohibit ADUs in master-planned communities. Confirm with the Planning Department at 281-391-4803 before building.
Sugar Land FAQ
Can I build a guest house or ADU in Sugar Land?
Yes, if your property is in an R-1, R-1R, or R-1E zoning district. Accessory quarters may not exceed 600 square feet of living space and may be located within the main house or as part of a detached garage. A building permit is required.
Is there a maximum size for an ADU in Sugar Land?
Yes. Accessory quarters are limited to 600 square feet of living space under the Development Code.
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