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Commission denies seawall variance for two North Manasota Key lots after contested hearing
Summary
After a lengthy public hearing with engineers, neighbors and university experts, the county commission voted 3–2 to deny a coastal‑setback variance request for two North Manasota Key properties that sought to install a vinyl sheet‑pile seawall. Supporters cited imminent risk to homes; opponents warned of downstream erosion and sea‑turtle and beach loss.
The Sarasota County Commission voted 3–2 on May 5 to deny a coastal setback variance that would have allowed a 380‑foot vinyl sheet‑pile seawall seaward of the Gulf beach setback line for two North Manasota Key parcels.
The hearing drew competing expert testimony and dozens of public speakers. The property owners and their coastal engineer argued that the bluff immediately fronting the two homes has eroded within a matter of feet of foundations and meets the state’s vulnerability criteria; they said the land is in “imminent danger” and a seawall is the practicable short‑term solution to prevent those slab‑on‑grade homes from collapsing into the Gulf. The state review was described by the applicants’ engineer as ready to issue permits if local authorization is granted.
Opponents — neighbors, regional coastal scientists and a University of South Florida coastal engineer — said the adjacent seawalls already in place to the north have altered local sand transport, increasing erosion pressure on downstream parcels. They warned that a new vertical seawall can accelerate scour and a “domino effect” of shoreline loss, reduce available nesting habitat for sea turtles and shift erosion onto neighboring properties. Several callers urged alternative approaches — temporary trap bags, beach nourishment, offshore reef or wave‑attenuation devices — and asked the county to pursue a coordinated, system‑level shoreline strategy rather than site‑by‑site armoring.
County staff briefed commissioners on the code and the standards the board must weigh when considering new shoreline hardening: whether the structure is necessary to protect existing habitable structures, whether less‑structural alternatives were feasible, and whether the proposal serves the public interest. Staff noted that the requested seaward encroachment was smaller than some previously approved walls along nearby barrier‑island beaches, but they also emphasized the known risks of seawalls to dune and beach function and sea‑turtle nesting. Staff also said they had issued a temporary class‑1 emergency authorization (trap bags) earlier but the applicants had not exercised that option.
After more than three hours of testimony and rebuttal, the board split on policy and long‑term shoreline strategy. Commissioners Smith and Knight — while sympathetic to the homeowners’ immediate plight — voted against the denial and supported approval of the variance; four other commissioners expressed concern about the wider coastal impacts and the precedent of granting seawalls in an eroding reach. The motion to deny carried 3–2. The county attorney will prepare a formal denial resolution for the record.
What happens next: the applicants may revise the design or pursue state permits independent of the local variance, and staff indicated they will continue to evaluate longer‑term, system‑level options that county officials and coastal scientists said will be necessary to reduce repeated conflicts over shoreline armoring.
(Provenance: public hearing transcripts and engineering exhibits presented during Item 40.)
