City Hall is located at 200 East Santa Clara Street between Fourth and Sixth Streets in downtown San José. The building layout includes an 18-story tower on the east side of the site; a three-story wing on the west side of the site; a centrally-located domed rotunda that reaches a height equivalent of 10 stories; a large plaza opening onto Santa Clara Street framed by a curved wall; and one level of 300 underground parking spaces.
The Rotunda is one of the most recognizable and modern pieces of architecture at San José City Hall. Its glass walls and glass dome are designed to maximizes natural lighting, which serves to enhance the airy architecture. The floor is done in a terrazzo finish. The glass walls on the ground floor of the Rotunda can be opened to allow an event to spill out onto the Plaza.