TO: Mayor and Commissioners
FROM: Timothy Stillings, Planning, Zoning and Building Director
THROUGH: Mark R. Lauzier, City Manager
DATE: June 5, 2018
Title
ORDINANCE NO. 15-18: AN ORDINANCE OF THE CITY COMMISSION OF THE CITY OF DELRAY BEACH, FLORIDA, AMENDING THE LAND DEVELOPMENT REGULATIONS OF THE CODE OF ORDINANCES BY AMENDING SECTION 4.3.4 “BASE DISTRICT DEVELOPMENT STANDARDS”, BY AMENDING PARAGRAPH 4.3.4(J)(2) “BASIS FOR MEASUREMENT”, TO AMEND THE BASIS FOR BUILDING HEIGHT MEASUREMENT FOR THOSE PROPERTIES LOCATED FEMA “V” FLOOD ZONE IN COMPLIANCE WITH THE FEDERAL EMERGENCY MANAGEMENT AGENCY (FEMA), THE FLORIDA BUILDING CODE, AND THE COASTAL CONSTRUCTION CONTROL LINE (CCCL); AND AMENDING APPENDIX “DEFINITIONS” OF THE LAND DEVELOPMENT REGULATIONS OF THE CODE OF ORDINANCES TO AMEND THE DEFINITION OF “GRADE””; AND PROVIDING A SAVINGS CLAUSE, A GENERAL REPEALER CLAUSE, AND AN EFFECTIVE DATE. (FIRST READING)
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Recommended Action:
Recommendation
Approve Ordinance No. 15-18 on First Reading.
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Background:
On October 5, 2017, the Flood Insurance Rate Maps (FIRM) became effective. These maps generally updated and increased the level of accuracy of the flood zones within the City of Delray Beach. The new maps also utilize a different datum (or starting point for elevation measurements) for the maps, changing from National Geodetic Vertical Datum of 1929 (NGVD 29) to the North American Vertical Datum of 1988 (NAVD 88). The difference (or conversion factor) between the datum is approximately 1.53 to 1.56 feet. The new maps establish the flood zones as well as the minimum base flood elevation for structures within the respective zones.
In addition, the Florida Building Code (FBC) was amended and became effective on January 1, 2018. Among several changes to the FBC, one amendment related to the FIRM flood zones was to require structures to be built an additional 12 inches above the minimum base flood elevation or published finished floor elevation.
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