At the top of it will be a roof terrace bar open to the public with panoramic views of the city. The hotel will also include a spa, gym and ground-floor restaurant.

Despite its 36 floors, the building will be almost half the height of 550 Howard opposite, whose 64 floors will upon completion make it one of San Francisco's tallest.

The Transbay development has seen what was originally a transport hub in the city's downtown area regenerated. As well as new buildings, existing towers have had their heights increased to create more residential accommodation, as well as office and commercial space.

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