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Three Hundred South Ocean, Palm Beach
A 1960 stock cooperative on South Ocean Boulevard, facing Midtown Beach across the road, five minutes from Worth Avenue. The building trades as co-ops do, on board approval and discretion, and its combined double residences have rebuilt the price ceiling in recent seasons.
The Building
Three Hundred South Ocean is Midtown’s quiet institution. The 1960 building at 300 South Ocean Boulevard is a stock cooperative, legally Three Hundred Ocean Blvd Apts Inc, which shapes everything about how it trades. Buyers purchase shares and a proprietary lease rather than a deed, the board approves every sale, and financing is tighter than in the condominiums. In exchange, owners get Midtown Beach across the road, Worth Avenue five minutes south, and a establishment discretion that condominium towers cannot offer. The market has rewarded it. Combined double apartments rebuilt the ceiling to $6.72 million in August 2026, and the per foot numbers now run with far younger buildings.
Share ownership, board approval and typically substantial cash requirements. Closings record more slowly and more quietly than condominium sales, and some transfers never reach the public feed at all. Buyers should budget time for the board process and engage counsel familiar with Palm Beach cooperatives.
Seven recorded sales closed in the last two years at a median near $2.15 million, roughly $1,540 per square foot. The record is $6.72 million for the 1-B line in August 2026, a combined residence. Asks at this writing reached $8.3 million, which tells you where sellers believe the combined ceiling sits.
Midtown Beach is across South Ocean Boulevard, the town's core shopping is behind it, and Worth Avenue is a five minute walk south. This is the geography buyers pay the island premium for, delivered at co-op prices.
A 1960 building lives on its maintenance and its reserves, so read the co-op's financials as carefully as the apartment. Combined units carry the premium. Single lines in original condition remain the island's most affordable path to a Midtown address.
Side by side
Market data is pulled live from the MLS on a trailing twelve-month basis, across all property types. Building details below are reference.
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Line-by-line sales activity, floor plan analysis, and building-specific commentary on Three Hundred South Ocean - the granular detail that separates a good purchase from a great one in this tower.
One of the island's last true co-ops faces Midtown Beach and trades on board approval and discretion. Every recorded sale from two years, the combined residence record from August 2026, and what share ownership actually requires of a buyer.
Read More : Three Hundred South Ocean: The Building Story
Five million buys a named-building condo or a prewar cottage on the island, a nearly new house across the bridge, or a golf estate in the Gardens. Every sale from the last twelve months, listed in all three markets, with...
Read More : What Five Million Dollars Buys in Palm BeachQuestions
A stock cooperative, legally Three Hundred Ocean Blvd Apts Inc. Buyers purchase shares and a proprietary lease, and the board approves every sale. It is one of a handful of true co-ops left in Midtown.
At 300 South Ocean Boulevard in Palm Beach, facing Midtown Beach across the road. Worth Avenue is a five minute walk south and the town’s core sits directly behind it.
The recorded median over the last two years ran near $2.15 million. Combined double apartments set the top: the building record is $6.72 million from August 2026, and current asks reach $8.3 million.
Discretion and price. Co-op boards screen the building’s ownership, transfers happen quietly, and the entry price for a Midtown address runs below the surrounding condominiums.
The cooperative’s financial statements, reserves and any assessment history, plus the board’s cash and approval requirements. The 1960 structure is sound buildings live on maintenance, and the paper tells you how this one is run.
No. Co-op transfers can close without a recorded deed in the usual form, so the feed understates the building’s activity. Our figures describe recorded sales and we say so wherever we quote them.
We'd welcome the conversation.