i did today speak with robert chung who was the engineer who reviewed the site permit drawings, which do not have anything on them structural or not. but, he did approve them. and in the 2010, san francisco building code, we do have our administrative bulletin for site permit processing. and just one of the items i want to read rt as well. because i think that it is important in this case as much of a purpose of a site permit is to allow a review of preliminary conceptual and schematic designs of proposed construction, there is no detailed plan review of construction details required at the time of site permit review. such detailed review will be done at the time of an addendum review. i am available for any questions and i will be on the demolition if you want to know about that one. valuation will be dealt with by ddi, we do use the marshal swift cost evaluation which is a nationwide analysis and i spoke with the engineer today. and he will look at that with the project sponsor, and get it proper valuation on the project. and on the demolition, do you want me to clarify that? >> in