Four Seasons Private Residences Coconut Grove opened to occupancy this quarter with 200 waterfront units engineered for owners who split time between homes and vessels. Developers CMC Group and Fort Partners installed 155 private deepwater slips alongside residential towers, treating yacht berthing as core infrastructure rather than amenity. The property sits 400 meters from Dinner Key Marina, Miami's highest-turnover transient slip facility, where 1,200 visiting vessels docked in the trailing twelve months.

Coconut Grove generates $2.1B annually from marine services, boat sales, and yacht provisioning, per Miami-Dade County's 2024 maritime economy report. The neighborhood holds 22% of Miami's registered vessels over 80 feet, yet only 6% of the city's marina slips serve this class. Four Seasons enters as purpose-built supply: slips accommodate up to 120-foot beam, with 240V/100A shore power standard and 48-hour concierge provisioning tied to residence management. Fort Partners priced penthouses from $8.5M to $14M, with slip assignments transferring at close.

This matters because branded residence operators now compete on capital-intensive infrastructure, not brand halo. Ritz-Carlton Residences Miami Beach opened 111 units in 2023 without marina access; resale velocity trails new-inventory Coconut Grove comps by 18% despite $1.2M lower entry. Four Seasons' model assumes yacht ownership correlates with residence occupancy—owners use slips 140 nights annually versus 40 nights for amenity marina users, per National Marine Manufacturers Association tracking. Higher utilization justifies the $350K–$900K slip premiums Four Seasons embedded in unit pricing, converting what competitors call lifestyle into repeatable NOI.

The secondary signal: Miami's ultra-luxury residential pipeline now splits cleanly between marina-integrated and land-only product. Waldorf Astoria Residences Miami and Rosewood Residences Brickell, both delivering 2025, offer no watercraft berthing; their allocators bet on urban density and pedestrian culture. Four Seasons' thesis inverts this—Coconut Grove's walkability scores 68 versus Brickell's 89, but the property captures buyers who value vessel proximity over street-level retail. Fort Partners reports 41 of the first 50 closings included slip purchases, and 29 owners requested custom electric charging for hybrid propulsion yachts.

Allocators should track slip utilization data through Q2 2025, when Four Seasons' services model matures. If berthing revenue exceeds $4M annually—the threshold where marina operations move from cost recovery to profit center—expect other branded operators to retrofit existing properties or require marina partnerships in new development deals. Ritz-Carlton parent Marriott already negotiated slip rights at 3 Florida municipalities for projects not yet announced. The 2026 Miami-Dade Marina Master Plan proposes 1,800 new deepwater slips; developers with Four Seasons-style residential adjacency will control permitting priority.

Meanwhile, Coconut Grove's $14M penthouse closings set Miami's highest per-slip pricing: $11.7M for residence, $2.3M for berthing rights. No other market clearing this spread since Newport, Rhode Island in 2019.