. >> my name is steve worthington, i am with rmw architects here in san francisco. we were first engaged in this project in 2007. and research was done about the capacity of this building. and uncovered that it's structurally sound and can support multiple levels of structure added to the structure. some seismic work was done at that time. that was voluntary by the owners. and subsequently the market fell silent some nothing was done. and the project has come back to life in the past couple of years. we have been working with planning on developing schemes for adding the four stories. a brought to you some imagery that shows how the building sits on the site in an existing format. and what it would be imagined with the four-story addition. there is a lot of attention and detail developed in the design to integrate the existing structure with a new edition from the ground all the way through to the roof. and i will walk you through some steps here. the building is a four-square plan. and it's immediate neighbor, the union bank building has its core adjacent to our si