Accessory Structures in Killeen, TX (2026)
2 verified accessory structures rules for Killeen, Texas, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Killeen allows one detached guest house per lot in its A-R1 and SR-2 residential districts, but caps its floor area at 25 percent of the principal home's size, excluding garages. Sections 31-172(b) and 31-185.2(b) require an extra off-street parking space and flatly prohibit renting or leasing the guest house.
Killeen Guest Houses Capped at 25 Percent of Home
Significant RestrictionsKilleen, Tex., Code of Ordinances Sec. 31-172(b)(1) (A-R1 District); Sec. 31-185.2(b)(1) (SR-2 District)
Permitted Accessory Uses:(1)One guest home per lot shall be permitted in the district subject to the following standards:a.The guest house shall be a detached accessory use to a principal residence.b.The maximum allowed area of the guest house shall not exceed twenty five (25) percent of the floor area of the principal residence (exclusive of garages).c.One additional off-street parking space s...
Shed & Carport Rules
Killeen exempts small detached tool sheds, storage sheds and playhouses from a building permit, but only if the floor area stays at or under 20 square feet under Code Section 8-191(3). Anything larger, or any shed used for another purpose, needs the same construction permit as any other accessory structure.
Killeen Sheds Under 20 Square Feet Need No Permit
Some RestrictionsKilleen, Tex., Code of Ordinances Sec. 8-191(3) (amending IRC 2024 Sec. R105.2)
Section R105.2 of the International Residential Code for One- and Two-Family Dwellings, 2024 Edition, is amended by deleting Building, items 5 and 10 and amending Building, items 1 and 2 to read as follows: "Building: 1.One-story detached accessory structures used as tool and storage sheds, playhouses, and similar uses, provided the floor area does not exceed 20 square feet (3.71 m2). 2.Fences ...
Looking for Bell County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Killeen city rules.
Accessory Structures in Bell County →