G802. MIXED-USE BUILDINGS

G802 MIXED-USE BUILDINGS G802.1 Lowest floor. The lowest floor (including basement or underground parking garage) of any new construction of, or substantial improvement to, a mixed-used building located on a development site wholly or partially within a flood hazard area shall either be at or above the design flood elevation, or be designed and constructed to be dry floodproofed during any flood up to the design flood elevation. G802.2 Residential portion. The lowest floor of the residential portion of any new construction of, or substantial improvement to, a mixed-use building located on a development site wholly or partially within a flood hazard area shall be at or above the design flood elevation. G802.3 Non-residential portion. The lowest floor of the non-residential portion of any new construction of, or substantial improvement to, a mixed-use building located on a development site wholly or partially within a flood hazard area shall either be at or above the design flood elevation, or be designed and constructed to be dry floodproofed during any flood up to the design flood elevation. G802.4 Ancillary residential use portion. The lowest floor of the ancillary residential use portion of any new construction of, or substantial improvement to, a mixed-use building located on a development site wholly or partially within a flood hazard area shall either be at or above the design flood elevation. SOURCE: Final Rulemaking published at 67 DCR 5690 (May 29, 2020 – Part 2); as amended by Final Rulemaking published at 68 DCR 2867 (March 19, 2021). The District of Columbia Building Code (2017), referred to as the “Building Code,” consists of the 2015 edition of the International Building Code (International Building Code), published by the International Code Council (ICC), as amended by the Building Code Supplement of 2017 (12-A DCMR). The International Building Code is copyrighted by the ICC and therefore is not republished here. However, a copy of the text may be obtained at: https://codes.iccsafe.org/public/document/IBC2015. District of Columbia Municipal Regulations Building Code Supplement of 2017 12-A DCMR § G802