With the ceremonial groundbreaking for the massive Oceanwide Center development in Downtown San Francisco slated for December 8, the two new towers to rise up to 910 feet in height at First and Mission Streets should be ready for occupancy in 2021.

Designed by Foster + Partners in collaboration with Heller Manus, at 910 feet, the 60-story First Street tower will become the second tallest building in San Francisco, behind the Salesforce/Transbay Tower which is rising to 1,070 feet across the street, with 109 condominiums (including a grand penthouse) over 1.1 million square feet of office space and a five-story Urban Room.

The condos atop the multi-faceted tower will be the highest residential units in San Francisco.

The adjacent 54-story Mission Street Tower, which will rise up to 605-feet in height on the currently vacant site at the corner of Mission and Ecker Place, will yield 156 condominiums over a 171-room Waldorf Astoria hotel, with 2,000 square feet of ground-floor restaurant space fronting Ecker, which will be a pedestrian alley.

The development includes an underground garage for 360 cars, a third of which will be dedicated to the condos, and 364 bikes. And as of today, there are no other parcels in San Francisco which are zoned for development over 900 feet in height.