High-net-worth buyers and investors continued to drive South Florida’s prime waterfront market in September, with high-profile residential transactions in Miami-Dade County spanning from $22 million to $69.5 million. According to recent market data from Homes.com and local Multiple Listing Service (MLS) records, demand for prime waterfront acreage and new ultra-luxury construction remains exceptionally strong across Golden Beach and Miami Beach.
A primary driver behind these multi-million-dollar transactions is the limited supply of waterfront land in South Florida. Wealthy buyers seeking lifestyle advantages and favorable tax environments are increasingly purchasing older properties specifically for their lot value, choosing to clear existing structures to build custom modern estates.
Below is an overview of the highest-priced residential home sales recorded across Miami-Dade County in September.
Top 5 Miami-Dade Residential Sales in September
1. $69,500,000 — 255 Ocean Blvd, Golden Beach
- Property Type: Oceanfront New Construction
- Specs: 7 Bedrooms | 14 Bathrooms | 17,507 Sq. Ft. | 0.65 Acres
- Year Built: 2026
- Days on Market: 196
- Key Details: Located at the northeastern edge of Miami-Dade County near the Broward County line, this newly constructed oceanfront estate represented the highest sale of the month. Originally listed for $88.5 million, the property closed approximately 21% below its asking price.
2. $33,000,000 — 126 W. San Marino Drive, Miami Beach (Venetian Islands)
- Property Type: Tropical Modern Waterfront Estate
- Specs: 5 Bedrooms | 7 Bathrooms | 7,890 Sq. Ft. | 0.36 Acres
- Year Built: 2018
- Days on Market: 35
- Key Details: Situated in the highly desirable Venetian Islands, this tropical modern residence boasts 90 feet of water frontage with direct views of the Downtown Miami skyline. Premium outdoor features include a private dock capable of accommodating multiple vessels and personal watercraft, an outdoor kitchen, an entertainment pool, and a rooftop terrace. The home closed at 8% below its $35.995 million list price.
3. $27,627,800 — 320 W. Dilido Drive, Miami Beach
- Property Type: Waterfront Modern New Build
- Specs: 6 Bedrooms | 8 Bathrooms | 5,479 Sq. Ft. | 0.25 Acres
- Year Built: 2026
- Days on Market: 185
- Key Details: Completed in May 2026, this waterfront residence features imported Italian furnishings and nearly 4,000 square feet of covered outdoor living space. The property closed 18% below its original list price of $33.5 million.
4. $22,000,000 — 7815 Atlantic Way, Miami Beach (North Shore)
- Property Type: Multi-Story Coastal Waterfront Home
- Specs: 5 Bedrooms | 7 Bathrooms | 5,868 Sq. Ft. | 0.37 Acres
- Year Built: 2015
- Days on Market: 102
- Key Details: Located in Miami Beach’s North Shore neighborhood near Downtown Miami, this three-story home features marble flooring, an internal elevator, a heated swimming pool, and a private spa. The property closed 12% under its $24.99 million list price.
5. (Tie) $22,000,000 — 205 N. Hibiscus Drive, Miami Beach (Hibiscus Island)
- Property Type: Prime Waterfront Redevelopment Site
- Specs: 4 Bedrooms | 3 Bathrooms | 4,097 Sq. Ft. | 0.48 Acres
- Year Built: 1956
- Days on Market: 3
- Key Details: Purchased primarily for its half-acre waterfront lot value on Hibiscus Island, this 1956-built structure spent just three days on the market before closing 8% below its $24 million asking price.
Key Takeaways for South Florida Real Estate Investors
- High Demand for Waterfront Lot Size: The sale on Hibiscus Island underscores how luxury buyers in Miami Beach are willing to pay top dollar purely for land to build modern custom mansions.
- Negotiation Opportunities: Several of September’s marquee transactions closed between 8% and 21% below their original asking prices, reflecting realistic price adjustments in the ultra-high-net-worth segment.
- Venetian & Hibiscus Islands Strength: Island communities in Miami Beach continue to command premier valuations due to prime water frontage and proximity to Downtown Miami.
