Historic preservation board approves slate-gray metal roof for 420 NE 15th Ave accessory structure

The Historic Preservation Board approved a certificate of appropriateness allowing the replacement of the existing roof on the accessory structure at 420 Northeast 15th Avenue with a slate-gray metal roof, after hearing staff analysis and testimony from the property owner.

Staff presented the application and recommended denial of the metal roof on the grounds that the accessory structure was part of a designated landmarked site (the main house and accessory structure were designated in 2005), that the historic record listed composition/asphalt shingles as the roof covering for the designated property, and that the Secretary of the Interior’s Standards recommend repair rather than replacement of deteriorated historic materials when feasible. Staff cited ULDR criteria (sections referenced in the staff report) and recommended an asphalt shingle replacement to match the existing material and preserve the architectural relationship on the landmarked site.

The applicant, who identified himself as Nicholas and said he had purchased the accessory property to be near a local school, explained he could not obtain property insurance without evidence that the roof would be repaired within a short period; he said contractor estimates recommended a metal roof for safety and longevity. He also said the existing roof was roughly 20 years old and that insurance companies were reluctant to insure older roofs.

Board members discussed past approvals of metal roofs for residential properties and weighed material authenticity against longevity, safety and the homeowner’s ability to insure the property. Several members said they have approved metal roofs in other residential cases because metal can provide greater longevity and storm performance; others noted that the accessory structure sits on the same landmarked site as the main house and that changes should be compatible with the designated resource. One board member suggested coordinating with the owner of the main-house parcel if that owner later re-roofs.

After discussion, a board member moved to approve the certificate of appropriateness based on testimony heard at the meeting and subject to required zoning and permit conditions; another board member seconded. The board voted by voice to approve the certificate of appropriateness.

The staff file notes: property originally built in 1941 as an accessory/garage apartment; the larger site was designated a local historic landmark in 2005 (resolution number cited in staff report). The accessory structure has had past demolition and hardship petitions (applications for demolition and hardship relief were denied by the board and City Commission in 2018–19, according to the staff presentation). The approved replacement material must comply with Florida Building Code requirements for high‑velocity hurricane zones and with any permit and safety conditions required by building officials.