a resolution authorizes an exchange of city property with a private property owner known as 515 folsom st.. i have on the overhead the general area in the transbay terminal area. in particular, it is this parking lot, here, on folsom. essentially, and the area in pink is being exchanged for the area in yellow in the photograph on a overhead now. tjpa and the city, which permitted the transfer of state property -- to the city, and subsequently we are before you now with this exchange agreement that squares off the ownership of the private parcel and city parcel. it facilitates the city parcel through the redevelopment agency, a party to that agreement, to allow for the development of affordable housing in the future. so this is step one of a secondary step. the particulars of this exchange are 746 square feet going in one direction, 2278 square feet in the other direction. the benefit of that, a differential of approximately $69,637. those are funds owed to the city, providing more land than the seller is provided to us. therefore, it is not quite an even exchange, but the agreement calls