Accessory Structures in Celina, TX (2026)
2 verified accessory structures rules for Celina, Texas, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Celina allows accessory dwelling units only in the AG, SF-E, and Downtown Code zoning districts, capping unit size at the primary home's square footage.
Celina Restricts ADUs to Three Zoning Districts
Significant Restrictions§ 14.03.202(1)(A)-(B)
(A) An ADU is defined as a subordinate building/structure intended for habitation. ADUs shall not be permitted without a main building or primary use in existence and are subject to zoning district regulations. (B) ADUs are prohibited in all zoning districts other than the AG, Agricultural zoning district, SF-E, Single-Family Estate zoning district, or Downtown Code zoning district.
Shed & Carport Rules
Celina exempts sheds up to 120 square feet from a building permit, but anything bigger or attached to the house needs one, plus a City inspection and setback compliance.
Celina Shed & Accessory Structure Permit Rules
Some Restrictions§ 14.03.201(b)
An accessory structure that is less than or equal to 120 square feet (approximately 10' X 12') in size shall not be required to obtain a building permit, but shall meet all height and setback requirements of this article. An accessory structure that is greater than 120 square feet in size OR any size structure that is attached to the main building shall be required to have a building permit, be...
Looking for Collin County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Celina city rules.
Accessory Structures in Collin County →