Palm Island homeowner seeks multiple understory and rooftop equipment variances; board approves battery/ equipment screening height but continues other requests

An expensive, large‑footprint Palm Island residence that previously received design review approval returned to the board seeking four additional variances related to construction details found during permit‑level design. The board approved one variance — allowing screening and additional height for solar battery/electrical equipment in a side yard location — but continued three other variance requests for a later hearing with a fuller record.

Staff explained the applicants were seeking a set of technical variances discovered during construction‑document preparation: (1) permission to enclose and air‑condition a sizable mechanical/storage room in the understory so sensitive equipment could be humidity‑controlled; (2) allowance to place concrete slabbed paving in non‑air‑conditioned portions of the understory (code typically requires pervious or semi‑pervious surfaces in the understory); (3) allowance to count an operable aluminum trellis toward lot coverage (the trellis as proposed would be operable louvers that count as coverage, while a fabric cover would not); and (4) a variance to permit taller mechanical/battery equipment and its screening above the code‑prescribed side‑yard screen height owing to large battery racks used for a sizable solar array.

Applicant representatives (Ronaldo Borges, project architect, and counsel Emily Balter) emphasized the home’s LEED‑Gold strategy, a 35,000‑gallon cistern for site stormwater collection, and equipment siting choices intended to improve resiliency and long‑term maintenance. They argued the air‑conditioning request was intended not to create living space but to avoid mold and humidity damage to high‑value electrical and filtration equipment; the concrete‑slab request was driven by performance concerns adjacent to piled pool structures and large paved terraces; and the louvered trellis was proposed as a durable, low‑maintenance alternative to canvas that will be open most of the time.

Board members expressed concerns about precedent and the code’s original intent: understory spaces are mostly required to be pervious so they can accommodate floodwater and avoid being enclosed into habitable space. Several board members said they could not approve all four items on the record presented and that the panel lacked sufficient technical documentation on long‑term performance and the specific dimensions and location of equipment. The board voted to approve the variance that allows taller screened battery/generator equipment at the side yard (finding it reasonable given the resiliency/battery need and extensive landscaping and screening), but continued the other three variance requests to the board’s next available hearing so the applicant can bring additional engineering and specification details, and to allow the full board to consider the requests (a five‑vote threshold applies to certain variances).

Board direction and next steps: the applicant agreed to provide additional engineering justification for the use of concrete in the understory, more detail on the proposed conditioned mechanical storage room and robust plans showing how the louvered trellis would be used/maintained. The continued items will return to the board for decision at a later date; the one approved variance will be incorporated into the prior design approval and the project will proceed on the remaining issues once the board reconvenes them.