The Split, Measured
Here is what we did, in plain terms. We took every closed single-family sale in the town from August 2024 through August 2026, the two most recent years, where both feeds run at full depth. Then we matched the two boards' records by address, by price and by closing date. The result: of 227 closed sales, 107 appeared on both boards. Another 69 appeared only on BeachesMLS, and 51 only on the town board. Neither feed reached ninety percent of the open market, and the sales each one missed were not the small ones. For a buyer or an appraiser this is not trivia, because it decides which comparables exist.
Source: Palm Beach Luxury reconciliation of BeachesMLS and PBBOR closed sales
The Sales One Feed Never Saw
The blind spots run to the very top of the market. The largest single-board closings sit almost entirely on the town board's side, topped by a $122.7M sale in Feb 2021 that never touched the regional feed. A buyer, an appraiser or an algorithm reading the other feed would price against a record with those sales simply absent. The first table lists the largest single-board closings since 2021, each one invisible to half the town's pipelines. And one more layer sits under both boards. Over the same period, the county's deed record holds sales that appeared on neither feed at all, topped by the $155M record itself. We measure that market in our off-market study. The second table shows its summit, because the full picture has three tiers: both boards, one board, no board.
Source: Palm Beach Luxury reconciliation of BeachesMLS and PBBOR
Source: Palm Beach County Property Appraiser qualified deeds against both boards. No owner is named
Why the Town Runs Two Ledgers
The arrangement is history, not accident. The Palm Beach Board of Realtors was chartered in 1949 and serves the island alone. It has run its own listing service ever since, through every wave of consolidation around it. BeachesMLS grew up around it by consolidation, absorbing board after board across the county into a system of tens of thousands of members. This spring it merged again, this time into the country's largest Realtor organization. The town's brokerages typically belong to both. Where a listing appears is a choice, made listing by listing. And the choice governs who sees it. BeachesMLS feeds the portals most buyers watch. The town board's reach is narrower, and a listing placed there alone can stay invisible to a buyer searching from New York. None of this is a flaw a buyer can complain away. It is the structure of the market, and it rewards whoever reads both ledgers, plus the third one nobody can choose, the county's deed record.
What to Do About It
The practical rule is short: never price, bid or appraise in this town from one feed. Every comparable set we publish or put in front of a client is built from both boards with the deed record laid over them. That is why our record book shows sales the portals never carried. Buyers can put that whole record to work through our buyer services. Sellers weighing exposure can see how a listing reaches both boards and the Compass network through our seller services, and our Palm Beach page keeps the running numbers. Ask us to show the two-ledger view on any property, and we will.
Bottom Line
Palm Beach's open market lives on two boards, and they barely overlap. In the two years both feeds cover completely, only 107 of 227 closed sales appeared on both. Read one feed and you miss a quarter to a third of the town, up to $122.7M at a time. Read both and you still miss the deed record underneath, where the town's biggest sales of all closed without a listing.
For anyone pricing anything in this town: Ask anyone valuing your house one question: which boards and which deeds are in your comparables. The answer separates an opinion from an analysis.
The reconciliation covers closed single-family sales in the Town of Palm Beach. Sales are matched across BeachesMLS and the Palm Beach Board of Realtors MLS by street number, by price within five percent, and by closing date within forty-five days. Exact percentages are quoted for August 2024 through August 2026, the two most recent years. The town board's record reaches back to October 2020 and shows the same split in earlier years. A handful of sales carried by a third regional feed are counted with their primary board. The sales on neither board are qualified county deeds with no matching closing on either feed within sixty days and five percent of price.
Statements about portals are structural: what any portal displays depends on board membership and syndication choices, which change over time. No owner is named.
BeachesMLS via Flexmls, closed sales, 2021 through August 2026.
Palm Beach Board of Realtors MLS, closed sales export, October 2020 through August 2026.
Palm Beach County Property Appraiser, qualified sales record, 2021 through August 2026.
Palm Beach Luxury reconciliation, August 2026.
