One Sotheby’s International Realty has assumed responsibility for sales and marketing of 9900 West, a waterfront condominium project located in Bay Harbor Islands. The developer, Horizon Group based in Brooklyn, appointed the Miami-based brokerage to handle the sale of more than half of the building’s 23 units at 9900 West Bay Harbor Drive, which faces the Indian Creek waterway.
Previously, Douglas Elliman was managing sales for this project since 2023. Recently, Elliman was also replaced by Serhant at another boutique development, Opus Coconut Grove.
The 9900 West condo building is currently about 50 percent presold. Units that remain available are priced between $3.2 million and $5.1 million. Construction on the seven-story building has reached its structural peak and completion is anticipated next summer.
Frankel Benayoun Architects designed the property, which features a range of amenities including a marina with ten boat slips, over 5,000 square feet of gardens, a rooftop pool deck spanning 9,000 square feet, as well as a fitness center and spa. The condominiums offer two to four bedrooms each and vary in size from approximately 1,200 to 3,200 square feet.
This marks Horizon Group’s first development in South Florida. David Marom leads the company. Additional projects planned by Horizon in South Florida include Residences at Nomi—a residential complex for those aged 55 and older located at 950 Northeast 124th Street in North Miami—and Casa Verde, a luxury condominium with 39 units planned for construction at 1130-1150 93rd Street in Bay Harbor Islands.
Bay Harbor Islands is seeing significant real estate activity with multiple condominium projects either planned or underway such as La Baia by Continuum Company and VDA Origin Miami. Office development has also increased; last year Landau Properties and Taubco secured a $74 million construction loan for One Kane Concourse at 9551 East Bay Harbor Drive. This site is near Terra’s Well office and retail complex at 1177 Kane Concourse, where tenants include Tom Brady’s family office and Dwight Capital.



