Another day, another proposed skyscraper in downtown Boston.

The latest one comes from developer Steve Belkin, who has come back with a scaled-down plan for a 740-foot tower in Winthrop Square. Belkin proposed a 1,000-foot tower in 2006 on the site of a city-owned parking garage. Although the plans enjoyed the support of then-Mayor Thomas Menino, they fell apart during the recession.

The new version would cost approximately $900 million and contain offices, a 300-room hotel, retail space and possibly condos on the upper floors, The Boston Globe reported.

Belkin owns the adjacent 133 Federal St., a 12-story office building, which would be connected to the new tower with a 72,000-square-foot ground-level retail promenade, the Globe reported.

At 740 feet, the skyscraper would become Boston’s third-tallest building after the Prudential Center and the Hancock Tower in Back Bay. It joins a list of massive mixed-use projects proposed or already approved, in neighborhoods from the waterfront to Back Bay and North Station.

Boston-based Chiofaro Cos. has proposed tearing down the eight-story Harbor Garage on Atlantic Avenue and building a pair of 615- and 538-foot towers containing offices, a luxury hotel and condos. Formal plans have not yet been submitted to the Boston Redevelopment Authority.

Developer Richard Friedman of Cambridge-based Carpenter & Co. received BRA approval last year for 50- and 20-story towers next to Christian Science Plaza in Back Bay that would contain a hotel, condos, restaurants and retail shops. Boston-based HYM Investment Group plans to build a 2.9-million-square-foot hotel, office complex, residences and stores at the Government Center garage site.

Belkin, founder of Trans National Properties and former owner of the NBA’s Atlanta Hawks, told the Globe that he is negotiating to buy the Winthrop Square garage from the city. The proposal requires BRA approval.