Miami Beach Spec Mansion: $75M North Bay Road Masterpiece Hits the Market
June 20, 2025
A new Miami Beach spec mansion is making waves in South Florida’s luxury real estate market. Priced at $75 million, this under-construction waterfront estate on North Bay Road is the latest high-profile listing in one of Miami Beach’s most coveted enclaves.
Developed by former MLB star Alex Guerrero, the project blends ultra-luxury living with cutting-edge architectural design—and it’s already capturing the attention of elite buyers.
A Spec Mansion That Redefines Miami Beach Luxury
Slated for completion in 2026, the 10,250-square-foot estate sits on a half-acre lot with sweeping views of Biscayne Bay. The home offers:
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7 bedrooms and 3 kitchens (including a chef’s-grade catering kitchen)
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Infinity-edge pool and summer kitchen
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Private dock with direct bay access
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Hot tub overlooking the water
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18-car garage with a sensor-activated waterfall entry
Buyers have the rare chance to customize finishes and amenities while the property is still in the pre-completion phase.
From Baseball to Blueprint: Guerrero’s Next Chapter
Known for his tenure with the Los Angeles Dodgers and Japan’s Nippon Professional Baseball league, Alex Guerrero has transitioned into a spec developer focused on high-end modern homes.
His previous project—a minimalist Palm Island residence—sold for over $17 million in 2023. With a strong design sense and investor acumen, Guerrero is quickly building a reputation as a credible force in Miami’s residential development scene.
North Bay Road: The Billionaire’s Strip of South Florida
North Bay Road continues to attract luxury buyers and celebrity homeowners. Guerrero’s listing joins recent activity on the street, including:
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David and Victoria Beckham’s $72.25 million purchase
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A $105 million pending sale by developer Todd Michael Glaser and partners
As high-end inventory tightens, this Miami Beach spec mansion stands out as a rare and customizable waterfront trophy asset.
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