ADU rules in Lubbock County, TX — also called accessory dwelling unit regulations or granny flat ordinances — cover setbacks, owner-occupancy, parking, and permit requirements.
Texas counties have no general zoning power, so unincorporated Lubbock County sets no accessory-dwelling-unit rules. Inside the City of Lubbock, ADUs are regulated by the Unified Development Code (Chapter 39) and generally need a Specific Use Permit in single-family districts; septic areas add TX H&S Ch. 366 OSSF rules.
A Texas county cannot adopt zoning, so unincorporated Lubbock County has no ADU, density, or accessory-dwelling ordinance. Whether you can build a granny flat depends on your city: the City of Lubbock's Unified Development Code (Chapter 39, effective October 1, 2023) treats a second dwelling as an accessory or two-family use, which in most single-family districts (R-1, R-2, A-1, A-2) is allowed only by Specific Use Permit approved by Planning & Zoning and City Council. Slaton, Wolfforth, Idalou and Shallowater set their own rules. In unincorporated county areas the only overlays are building/electrical permits where adopted and on-site sewage permits under Texas Health & Safety Code Chapter 366. Confirm your parcel's city or ETJ status before building.
In the City of Lubbock, building a second dwelling without the required Specific Use Permit or building permit is a code violation subject to stop-work orders and municipal court fines.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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