martinez. dianne joseph. dennis bloom. margaret diaz. >>> can i get the overhead? can i get the overhead? just go ahead and place that down. >> sfgov should turn it on. >>> good evening, commissioner. my name is alan martinez. i'm here representing myself. when you [speaker not understood] and other penthouse he was written, what could be expected was a small one stair penthouse going up to a laundry line. that's how old this exception s. it's been around as long as i've been working. i don't think it was anticipated at the time that we would be transferring the open space from the bulk of the building to the roof as a routine way of meeting the open space requirements. and that is happening more and more, where the open space requirement is being met on the roof either originally as public -- as shared open space that now more and more is private open space. what this has meant is a proliferation of private stair penthouses. together with the public stair penthouses and the elevator, you know, what's the point of having a height limit when you have a wall of structures across the building