Ex-MLB Star Turned Developer Alex Guerrero Lists $75M Spec Mansion on Miami Beach's North Bay Road

Key Takeaways

• $75 million spec home listed at 3100 North Bay Road, Miami Beach, spanning 10,250 ft² (~$7,300/ft²) 

• Features include seven bedrooms, three kitchens (one catering-level), infinity-edge pool, dock for 90’ yacht, hot tub, and a show-stopping 18-car garage with a sensor-activated waterfall entrance 

• Guerrero bought the site in 2023 for $13.6M, previously sold a Palm Island spec home for $17.2M, and now aims to quintuple his investment

From Baseball to Billion-Dollar Bids

Former LA Dodgers infielder Alex Guerrero has swung for the fences in real estate. At 38, the Cuban-born athlete turned developer is targeting Miami’s ultra-luxury market with this ambitious waterfront project.

Property Highlights

• Architectural footprint: 10,250 ft² on a half-acre plot along North Bay Road, Miami Beach’s most prestigious corridor 

• Luxury suite: 7 bedrooms, including a lavish 1,500 ft² primary suite with private garden and cold plunge 

• Culinary setup: Featuring three kitchens—one outdoor entertainer’s kitchen and a professional catering kitchen for large events 

• Ultimate car amenity: An 18-car garage split between a three-car air-conditioned space and a 15-car undercarriage, all accessed via a sensor-activated waterfall 

• Waterfront luxury: Includes an infinity-edge pool, hot tub, dock to accommodate a 90-foot yacht, and a solar-paneled roof for sustainability 

Market Context & Flip Strategy

• Had Beckham-level neighbors: North Bay Road is home to trophy assets—David and Victoria Beckham paid $72M last year, while others chase $100M+ listings 

• Proven track record: Guerrero flipped a Palm Island spec home for $17.2M in 2023 

• Seller flexibility: Listing pre-completion (delivery expected in 2026) allows high-net-worth buyers to tailor finishes—catering to ultra-luxury customization demands 

What Investors Should Watch

Signal	Insight
Ultra-luxury pricing	Listing at $7,300/ft² may test market appetite but aligns with North Bay’s elite status
Flip multiples	Buying at $13.6M and listing at $75M signals high-risk, high-reward positioning
Customization trend	Pre-completion offering taps demand for personalized luxury among top-tier buyers

Bottom Line

Alex Guerrero is vying to turn a former MLB payday into real estate gold on Miami’s famed North Bay Road. With a record-setting spec home, flexible pre-completion sales strategy, and trophy-level features, this $75M listing embodies Miami Beach’s ultra-luxury evolution—and it’s one to watch for investors tracking the region’s crème de la crème market.