Keller proper from Old Town to the SF-36 acreage up north, plus Colleyville, Southlake, Watauga and North Richland Hills, the neighbors along FM 1709 and Davis Boulevard. If your street feeds Keller Parkway, Rufe Snow or Main Street, you are squarely in our build area.
Nearby towns have pages of their own, because the rules genuinely change at the city line. West of the highway, see our Fort Worth shed page. Up the US-287 corridor, Haslet has its own jurisdictional maze worth reading about. And toward the rail yards, our Saginaw storage buildings page covers those tighter lots.