I feel like I've seen parts and pieces of this question in various posts but never asking it directly. This credit requires some assessment/modifications of the entire building, not just of the tenant space. For most every building I've ever been in the OA has been shut, non-functional, etc. LEED certification should require a building to stand out in many ways, but requiring a 1,000 SF tenant build out in a 100,000 SF building to have to modify the base building mechanical systems to achieve certification seems like a tough sell.

I'm looking at a project that is about 6,000 SF TI in a 3-story, 20,000 SF plate building with 20 year old RTU's with min OA dampers and economizers. I know I can ask the tenant/building owner to hire a mechanical contractor to balance the unit, but after that I'm looking at upgrading the controls, adding actuators, probably replacing dampers and all that assuming the units can handle the increase in ventilation...

I guess is my project kind of doomed from the start? Or has anyone had success with arguing that bringing the building up to 62.1 is cost prohibitive, and had success?

Any thoughts or insights would be very much appreciated. I'm sure plenty of people have run up against this problem... Thanks!