South Florida just added a new luxury housing market. Here’s what it means

South Florida’s housing markets are increasingly doing business as one big region.

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The latest evidence is Miami Realtors’ merger with Martin County Realtors on the Treasure Coast, whose members serve luxury properties on Jupiter Island, Sewall’s Point and the Stuart waterfront.

The agreement creates a single multiple listing service, or MLS, stretching from Miami-Dade to Martin County and underscores a broader trend: South Florida is increasingly being marketed as one interconnected real estate market rather than a collection of county-by-county markets.

The merger gives roughly 94,000 real estate professionals access to one database of property listings spanning Miami-Dade, Broward, Palm Beach, Martin and St. Lucie counties, creating one of the nation’s largest MLS networks.

“From Miami-Dade to St. Lucie, a nearly 120-mile real estate corridor, we are one,” Miami Realtors Co-CEO Teresa King Kinney said in announcing the merger.

The expansion, she said, will provide members with greater access to data, technology, education and business opportunities as they serve their real estate clients who are buying or selling.

The deal comes just over two months after Miami Realtors merged with RWorld — formerly Broward, Palm Beaches & St. Lucie Realtors — in what was described as the largest merger in the history of the National Association of Realtors. Adding Martin County Realtors further expands that regional network.

For buyers, whether searching for a billionaire’s waterfront estate or a first home, the change allows their real estate agents to search listings across five counties through a single MLS instead of multiple regional systems.

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For instance, a buyer searching for a waterfront home may now be shown properties in Miami Beach, Boca Raton, Jupiter Island and Stuart in the same search.

Although consumers cannot access the private MLS directly, licensed agents can view information that is not publicly available, including showing instructions, price-change histories and other market data.

The merger also reflects the way many affluent buyers already shop for homes in South Florida. Rather than limiting their search to a single county, luxury buyers often compare waterfront estates and condominiums from Miami to Palm Beach and the Treasure Coast before deciding where to buy.

For sellers, the expanded MLS means their homes can be marketed to a broader network of agents and prospective buyers throughout the region, increasing exposure in one of the country’s most active luxury housing markets.

Increasingly, the boundaries that once separated South Florida’s real estate markets matter less than they once did.

For Realtors — and for buyers and sellers alike — the market is evolving into a single connected region stretching nearly 120 miles along Florida’s Atlantic coast.

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This story was originally published July 31, 2026 at 1:16 PM.