Key Biscayne Condos for Sale - Island Buildings & Market

Living on Key Biscayne

Key Biscayne is a barrier island village reached by the Rickenbacker Causeway from Brickell, framed by Crandon Park to the north and Bill Baggs Cape Florida State Park to the south. It is a quiet, affluent, family-oriented community with beaches, parks, tennis, and a small-town village center, deliberately low-key and low-rise by comparison with the mainland. The island's condo market is concentrated in a handful of established oceanfront and bayfront communities, drawing buyers who want island living, top schools, and outdoor recreation minutes from Downtown yet a world apart from it.

The condo buildings

Key Biscayne's condos cluster in a few established communities. The oceanfront Oceana and the Grand Bay Residences anchor the newer luxury tier, while the Ocean Club community (Ocean Tower and the Club Towers) and the Commodore Club buildings define the established oceanfront. The Key Colony community — Emerald Bay, Oceansound, and Tidemark — plus the Towers of Key Biscayne, Casa del Mar, and Mar Azul round out a market defined by gated, amenity-rich island communities rather than individual towers.

Who buys here

Key Biscayne draws families, professionals, and a significant international community — particularly from Latin America — who want a safe, quiet island with top schools, beaches, and outdoor recreation close to the city. The buyer pool skews owner-occupant and long-term; the island's gated communities favor a residential character, and leasing rules can be on the more restrictive side. It is the choice for buyers who prize island privacy, space, and lifestyle over a walkable urban or high-rise beach address.

Age, Milestone, and reserves

Key Biscayne's condo communities span the early 1970s through the 2010s, and because the island is coastal, they face Florida's Milestone (SB 4-D) structural inspection at 25 years — the earlier coastal trigger. The island's older 1970s communities are well past that first inspection point, so their reserve studies, structural findings, and assessment history are the central due-diligence question; the newer oceanfront buildings have years to run. The post-Surfside law also requires funded structural reserves from a Structural Integrity Reserve Study. Pull the reserve study and estoppel for the specific building.

Getting around

Key Biscayne is reached only by the Rickenbacker Causeway from Brickell, which passes Crandon Park and the beaches on the way onto the island; Brickell and Downtown are about ten to fifteen minutes away, and Miami International Airport roughly twenty-five. The island itself is compact and bike-friendly, with the village center, beaches, and parks at its core. For buyers, Key Biscayne is the trade of gated island living, schools, and recreation against the walkable urban density just across the causeway.

Key Biscayne condo FAQ

Can you rent out a condo on Key Biscayne?

It depends on the building, and Key Biscayne skews residential and owner-occupant. Many of the island's gated communities favor longer minimum leases and limit leases per year to preserve their quiet character, so leasing can be on the more restrictive side; some buildings are more flexible. Confirm the specific association's bylaws before you buy. Each Key Biscayne building page on this site lists that building's minimum lease term and leases-per-year where we have verified it.

What do HOA dues cover in Key Biscayne condos?

Key Biscayne dues reflect the island's amenity-rich, gated communities: security and gated access, pool, beach, tennis and fitness facilities, common-area insurance, water, and reserves, with the full-service oceanfront communities carrying the highest dues. Post-Surfside, Florida law (SB 4-D) also requires condominiums to fund structural reserves based on a Structural Integrity Reserve Study, which weighs on the island's older communities in particular. Always read the estoppel letter and reserve study before relying on a quoted dues figure.

What are the most notable condo buildings on Key Biscayne?

The newer luxury tier includes the oceanfront Oceana and Grand Bay Residences. Established oceanfront communities include the Ocean Club (Ocean Tower and the Club Towers) and the Commodore Club, while the Key Colony community (Emerald Bay, Oceansound, and Tidemark) and buildings like the Towers of Key Biscayne, Casa del Mar, and Mar Azul fill in the rest. The right choice depends on whether you want a newer oceanfront residence or an established gated community.

Do Key Biscayne condos have Milestone inspection or reserve issues?

Often yes on the older communities. Key Biscayne is coastal, so its condominiums face Florida's Milestone (SB 4-D) inspection at 25 years, earlier than the inland trigger. The island's 1970s communities are well past that first inspection point, so their reserve studies and any assessments are the central due-diligence question; the newer oceanfront buildings have years to run. Pull the reserve study and estoppel for the specific building.

What is the Key Biscayne condo market like right now?

Key Biscayne is a limited-supply island market defined by a handful of established communities and a few newer oceanfront residences, so pricing runs building by building and by community rather than off a single neighborhood median. For current asking prices, browse active Key Biscayne listings on the For Sale and For Rent pages and review each building page for its leasing and HOA profile. We do not publish a fabricated neighborhood median for the island; the honest read is building-by-building.

How does an out-of-state or international buyer purchase on Key Biscayne?

It is the same condo-purchase process, handled remotely. Out-of-state buyers can close by remote online notarization and power of attorney without flying in; international buyers add ITIN setup, foreign-national financing, and FIRPTA-at-purchase planning for the eventual sale. Key Biscayne has a large international, particularly Latin American, community, so associations here are used to non-resident buyers. Our non-resident buyer guides walk through financing, taxes, and closing step by step.