Tech investor sells non-waterfront Key Biscayne home

Built in 2017, 4,400 sf house includes Tesla solar panels and battery system

Key Biscayne, home sales, Miami-Dade County
625 Curtiswood Drive (Google Maps, Getty)

A non-waterfront home in Key Biscayne sold for $7 million.

Records show Stephan and Illiana Memmen sold the house at 625 Curtiswood Drive to Carlos Gustavo Cabrera Gomez and his wife, Ajda Petek. Stephan Memmen is a tech investor and vice president of Pulse Electronics, a San Diego, Calif.-based electronics manufacturer. Illiana Memmen is a real estate agent with Compass in Miami.

Gomez operates Bricks and Beach LLC, a Florida entity. Petek’s LinkedIn shows she is CEO of A.C. Sports d.o.o., a Slovenian wholesaler of clothing and sporting goods.

Ale Alfonzo of Compass had the listing, and Jennifer Santana of One Sotheby’s International Realty brought the buyer.

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The Memmens bought the house for $4.3 million in 2019, records show. The 4,400-square-foot, five-bedroom, five-bathroom, one half-bathroom home was built in 2017, according to property records. It includes a pool, spa, and a Tesla solar panel and battery system, the listing shows.

Santana also has the listing for Gomez’s condo at One Ocean, a condominium developed by the Related Group at 1 Collins Avenue in South Beach. Gomez bought unit 607 for $4.9 million in 2016, when the building was completed, records show. The nearly 3,100-square-foot, five-bedroom, five-bathroom condo is asking almost $7 million.

As of September, sale prices for single-family homes on Key Biscayne jumped 18.4 percent, year-over-year, according to Redfin. Latin American and other foreign buyers tend to favor the market.

Last month, the Brazilian heir to a silicon manufacturing fortune bought a non-waterfront home on Key Biscayne for $6.9 million. Massimo Cellino, an Italian businessman and controversial former-owner of the English Leeds United Football Club, sold his waterfront home for $14.9 million in July. In October of last year, the former CEO of French vaccine maker Sanofi bought a waterfront home on Key Biscayne for $7.5 million.