Zoning Overlays & Bonuses in O'Fallon, MO (2026)
1 verified zoning overlays & bonuses rules for O'Fallon, Missouri, sourced directly from the municipal code and official government pages.
Verified from official government sources
Downtown Design Guide
O'Fallon's Downtown Overlay District, City Code § 400.163, relaxes the standard zoning code to encourage redevelopment: buildings can rise to fifty (50) feet or three (3) stories (six with Planning and Zoning Commission approval), only twenty percent (20%) of the lot must stay green space, and neighbor notice is required before any site plan is approved.
O'Fallon Downtown Overlay District Design Rules
Significant RestrictionsO'Fallon Code § 400.163(C), (E)
C. Building/Structure Height. No building or structure should exceed fifty (50) feet or three (3) stories. The Planning and Zoning Commission and City Council may allow additional height to a maximum of six (6) stories when it is determined that: 1. The building heights are in appropriate scale to their surroundings both internal and external to the site. 2. Building design and orientation effe...
Looking for St. Charles County county-wide rules?
County ordinances apply to unincorporated areas and may supplement O'Fallon city rules.
Zoning Overlays & Bonuses in St. Charles County →