Wylie, TX Zoning Overlays & Bonuses: Downtown Design Guide (2026)

Wylie designates its downtown, generally bounded by State Highway 78, Cottonbelt Avenue, and Ballard Avenue, as the Downtown Historic District under Appendix B Section 6.3. Any new construction or substantial renovation of a contributing building must go through site plan and design review with the Planning Department, and demolition or non-routine work on a contributing structure must first be reviewed by the seven-member Historic Review Commission (HRC), created under Ordinance 2013-17, which recommends action to the Planning and Zoning Commission and City Council. The Architectural Design Standards in Section 6.3.E.5 require new commercial construction to match the scale, width, and massing of adjacent contributing buildings and to incorporate traditional patterns wherever possible.

Ground-floor facades on commercial buildings must be at least 45 percent transparent windows or doors, and second-floor facades must be at least 20 percent windows, counting any mullions within the frame. Building height for new commercial structures is capped at 45 feet, measured to the highest point of any architectural element such as a turret, pinnacle, or pediment. Routine maintenance items, such as re-shingling in the same color or repainting with an approved historic palette, can be approved at the staff level rather than going before the full HRC.

Owners planning demolition must submit a structural engineer's letter when the request rests on a claim that the building lacks structural integrity, and the HRC weighs each demolition request against whether the structure still contributes to the district's historic or architectural character.