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Private Island in the Florida Keys With Helipad and Solar Power Lists For $16 Million

August 26, 2026

Positioned just off the coast of Marathon, East Sister Rock Island is a rare private sanctuary wrapped in vibrant turquoise waters—accessible by boat or via a private, on-island helipad has hit the market for $16 million. A once in a generation opportunity to own a legacy property, the island spans approximately 6.5 total acres—including 5.8 acres of private surrounding seabed– offering an extraordinary aquatic playground.

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In Florida Keys, Luxury Homes, Luxury Real Estate, Marathon, News, News & Features, Residential Tags News & Features, News, Residential, Luxury Homes, Luxury Real Estate, Marathon, Florida Keys, East Sister Rock Island, 1 East Sister Rock Island, Vladimir Rochebrun, Aaron Rosenthal, The Chad Carroll Group, Compass, 99 E Ocean Drive
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Constellation Group and Ironwood Venture Group Complete Seaglass Cove In The Florida Keys

August 19, 2026

Constellation Group and Ironwood Venture Group have completed SeaGlass Cove, a 14-residence oceanfront community in Marathon, and the closing of an $8.46 million permanent loan from Centennial Bank. The financing replaces the project’s construction loan and marks SeaGlass Cove’s transition from development to a fully completed, move-in-ready residential community. With seven residences sold and seven remaining, the project is now 50% sold.

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In Construction, Construction News, Construction Update, Development, Development News, Development Sales, Florida Keys, News, News & Features, Residential Tags News & Features, News, Development News, Development, Development Sales, SeaGlass Cove, Marathon, Constellation Group, Eduardo Otaola, Residential, Ironwood Venture Group, Featured, Florida Keys, Construction News, Construction, Construction Update
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Private Florida Keys Resort Style Luxury Home Community SeaGlass Cove Passes $21 Million in Sales

March 22, 2024

Constellation Group, the Miami-based commercial real estate investment and development firm, and Ironwood Venture Group, a real estate development firm, have sold over $21 million combined of the residences at SeaGlass Cove, a new lush, private enclave consisting of just 14 single-family homes in Marathon.

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In Development, Development News, Development Sales, Luxury Homes, Luxury Real Estate, News, News & Features, Florida Keys, Residential, Marathon Tags News & Features, News, Development News, Development, Development Sales, SeaGlass Cove, Marathon, Constellation Group, Eduardo Otaola, Residential, Ironwood Venture Group, Featured
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Two Roads Development Reaches and Funds Settlement With Biscayne 21 Owners, Clearing Path Forward for Future Development 1.webp
September 1, 2026
Two Roads Development Reaches and Funds Settlement With Biscayne 21 Owners, Clearing Path Forward for Edition Residences, Miami Edgewater
September 1, 2026

Two Roads Development, a South Florida-based real estate development firm, has reached and fully funded a settlement resolving the remaining litigation related to the Biscayne 21 condominium property at 2121 North Bayshore Drive. The agreement with the remaining owners concludes multi-year legal proceedings, demonstrating the firm's commitment, financial strength and capacity to overcome complex challenges to protect its assets.

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September 1, 2026
Former Site of Al Capone's Historic Palm Island Estate Sells For $21 Million 3.png
August 31, 2026
Former Site of Al Capone's Historic Palm Island Estate Sells For $21 Million
August 31, 2026

The former site of Al Capone’s longtime Miami Beach estate has traded for $21 million, marking the latest chapter for one of the city’s most historically recognizable residential properties. Located at 93 Palm Avenue on Palm Island, the now-vacant waterfront property features 100 feet of frontage on Biscayne Bay. The site was previously home to the sprawling estate once owned by the notorious Prohibition-era crime boss before the residence was demolished in 2023.

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August 31, 2026
Private Island in the Florida Keys With Helipad and Solar Power Lists For $16 Million 9.jpg
August 26, 2026
Private Island in the Florida Keys With Helipad and Solar Power Lists For $16 Million
August 26, 2026

Positioned just off the coast of Marathon, East Sister Rock Island is a rare private sanctuary wrapped in vibrant turquoise waters—accessible by boat or via a private, on-island helipad has hit the market for $16 million. A once in a generation opportunity to own a legacy property, the island spans approximately 6.5 total acres—including 5.8 acres of private surrounding seabed– offering an extraordinary aquatic playground.

Read more →
August 26, 2026
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