Orlando, FL Fence Regulations: Retaining Walls (2026)

929 cover fences and walls generally but don't separately address retaining walls. Where Orlando does regulate retaining walls specifically is inside a regulated floodway, the channel and adjacent land area the City's Floodplain Regulations (Chapter 63, Part 2C) reserve to carry the base flood without raising flood elevations. 228(e)'s limitations. 223(c)(1), demonstrates the wall, sidewalk, or driveway won't cause any increase in the base flood elevation, often called a 'no-rise' certification. Retaining walls outside a mapped regulated floodway, including most residential grading projects, instead fall under Orlando's standard building-permit and site-plan review rather than this floodway-specific limitation, and homeowners should confirm with the Floodplain Administrator whether a given parcel sits inside a mapped floodway before assuming the no-rise analysis applies.