St. Tammany Parish, LA Building Setbacks & Zoning: Structure Height Limits (2026)

2 sets the height ceiling for St. Tammany's seven single-family residential districts: E Estate, R-1 and R-2 Rural Residential, L-1 and L-2 Large Lot, and S-1 and S-2 Suburban Residential. Each district's site and structure provisions repeat the same 35-foot cap measured above natural grade, and some districts, such as E Estate and R-1, also measure the limit against base flood elevation, whichever is higher, so a lot with a high base flood elevation cannot use extra fill height to gain additional stories. 3(A)(4)(h), is allowed an extra 10 feet, up to 45 feet, reflecting the district's greater density.

4(B)(4)(g) and (C)(4)(g), but only for buildings set back more than 100 feet from a single-family zoned lot; within that 100-foot buffer, the same sections cut the limit to 35 feet to protect adjacent single-family neighborhoods from an abrupt jump in scale. Height is checked as part of the building permit process under Section 300-2, which requires construction documents showing the structure's dimensions before the Department of Permits and Inspections will issue a permit; the director can reject an application that does not conform. An applicant who wants to exceed the applicable height limit must seek a variance from the Board of Adjustment rather than build first and ask forgiveness.