Building Setbacks & Zoning in Florissant, MO (2026)
2 verified building setbacks & zoning rules for Florissant, Missouri, sourced directly from the municipal code and official government pages.
Verified from official government sources
Setback Rules
In Florissant's 'R-1' Single-Family Dwelling District, a house must sit at least 30 feet back from the front lot line, 35 feet from the rear, and 15 feet from each side yard, on a lot of at least one acre with 120 feet of frontage.
Florissant R-1 Yard Setback Minimums
Some RestrictionsFlorissant Code of Ordinances § 405.085(E)
Height, Area And Bulk Regulations. The height, area and bulk requirements for permitted uses shall be as follows: ... ... 4. Minimum depth (front yard). Thirty (30) feet. 5. Minimum depth (rear yard). Thirty-five (35) feet. 6. Minimum width (side yard). ... Fifteen (15) feet. 7. Minimum lot frontage width. One hundred twenty (120) feet. 8. Minimum lot depth. One hundred fifty (150) feet.
Structure Height Limits
Florissant caps single-family homes in the R-1 Single-Family Dwelling District at two and one-half stories and thirty-five feet under the zoning code's height, area and bulk table. The same table sets a one-acre minimum lot, a 30-foot front yard and a 35-foot rear yard. The Building Commissioner enforces the limit through the building permit process before construction begins.
Florissant R-1 Structure Height Limit
Some RestrictionsFlorissant Code of Ordinances § 405.085(E)
E. Height, Area And Bulk Regulations. The height, area and bulk requirements for permitted uses shall be as follows: ... ... 2. Maximum story. Two and one-half (2½) stories. 3. Maximum height. Thirty-five (35) feet.
Looking for St. Louis County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Florissant city rules.
Building Setbacks & Zoning in St. Louis County →