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4-10-23 Attachment CSection Entity easonin�/Notes 8-14 COAB Provide flexibility in who administers code (changes in titles, personnel, etc.). 8-25 FEMA See Note 1. 8-30 FEMA See Note 2. 8-31 State Changed to match state language. Current language would result in homes be- ing elevated 2.5 feet higher than what was intended (was a mistake in last code update). lm acts new homes around Howell Park. 8-32 FEMA See Note 2. 8-36,37 FEMA See Note 1. 8-38-45 COAB Recommended by staff as CDB is more familiar with variances related to land development. 8-52 State Definitions match FL Building Code and recommended by state to be added to the code. 8-53(1) FEMA See Note 1. 8-53(2) a. COAB/ FEMA 2.5 feet above the base flood elevation is already adopted (2003 & 2013) but State recommends codifying here in Chapter 8. This requirement is a big rea- son we are a Class 6 CRS community. The State requires elevation 1 foot above the base flood elevation. b & c. COAB See Note 2. 8-62 COAB Based on FEMA recommendation. Fill reduces water storage and can direct water to neighboring ro erties. 8-63 FEMA See Note 2. 8-65 FEMA See Note 2. 8-67 FEMA See Note 3. 8-72 FEMA See Note 2. 8-79-82 FEMA See Note 2. 8-83 FEMA See Note 4. Note 1. Requiring forms to be submitted (Sections 8-25, 36, 37, & 53(1)): Elevation and Flood -proof Certificates These certificates are already required by the city for CRS reporting and are required by insurance companies. Adding this to the code does not change what is required but helps to ensure that the forms are submitted by making it clear to future staff, builders, and property owners that it is required. Non -enclosure Agreement: This is an agreement to not illegally convert a storage/parking area below the flood elevation into a living area. The goal is to reduce the likelihood that owners or future owners convert these areas. The agreement is not required to be in the code but adding it to the code provides additional CRS credit and helps with enforcement. Alternatives include: • Do not require • Require agreement (proposed) • Prohibit enclosed storage/parking areas below the base flood elevation • Limit the size of enclosed storage/parking areas below the base flood elevation Note 2. Treating Coastal A Zones as V -Zones (Sections 8-30, 32, 53, 63, 65, 72, 79, 80, 81, & 82): Coastal A Zones: Areas that are exposed to wave heights between 1.5 to 3 feet in height (23 parcels & only found along marsh/intracoastal). V -Zones: A rear that are exposed to wave heights greater than 3 feet in height. Houses in V -zones must be built with open foundations such as piers or pilings due to wave exposure. This is not required in Coastal A zones. However, studies have shown that closed foundations can sustain considera- ble damage when exposed to waves 1.5 to 3 feet in height (FEMA & FDEM). As a result, the FL Building Code (FBC) now requires coastal A zone construction to meet the same standards as V -zone construction EX- CEPT it allows backfilled stem walls provided the foundation is designed to account for wave action and ero- sion. FEMA however, recommends that Coastal A Zones are treated the same as V -Zones, so staff is propos- ing to NOT allow stem walls within the Coastal A Zone. Doing so also provides additional CRS credits. Table below from FEMA P-550 "Recommended Residential Construction for Coastal Areas": Table 2-1. Foundation Type Dependent on Coastal Area ✓ = Acceptable NR = Not Recommended I► _ Not Permitted Note 3. Manufactured Homes (Section 8-67) This code change is required for the city to maintain its CRS Class 6 Rating. If not adopted, the city will be retrograded to a Class 9 rating. We currently do not have any manufactured homes within the floodplain, so the change does not affect any existing properties. Note 4. Accessory Structures (Section 8-83) FEMA and the FL Building Code require all structures to be elevated or dry floodproofed above the base flood elevation. In 2020, FEMA released policy #104-008-03 allowing wet floodproofing (less stringent than dry floodproofing) for certain accessory structures. So by adopting this code language, the city can allow relaxed reaulations for certain accessory structures without impacting its FEMA CRS Rating. Note that the code lan- guage is model language developed by the state.