After Ian
The National Hurricane Center records Ian's first landfall on Cayo Costa at category 4 intensity on September 28, 2022 (NHC Tropical Cyclone Report, Hurricane Ian). Many Lee County buildings replaced roofs, windows and doors afterwards. A SIRS should reset the remaining life of anything replaced since then, rather than dating it from the original construction.
Local timing
Cape Coral's FAQ states that "All buildings within the City of Cape Coral are not located within three miles of the coastline", so its buildings follow the 30-year milestone rule (City of Cape Coral, condominium inspections FAQ). Coastal towns with their own building departments set their own notices, so ask the office that covers the building which trigger applies.
The state rule, unchanged by county
Whatever the local program, the SIRS itself is state law. Every condo or co-op building of three habitable stories or more in Lee County needs one at least every 10 years, covering the eight statute items, signed by one of the four credentials, with reserves that owners cannot waive. The deadlines page has the dates.
Other counties
Miami-Dade, Broward, Palm Beach, Pinellas, Sarasota, Collier, Duval.