The founders of Google — Larry Page, and Sergey Brin — are offering NASA $33 million to restore their Hangar One. Hangar One was once the building that housed NASA planes, and is currently in really bad shape and needs to be restored to protect the environment. How nice of Google, but there’s a catch. Mercury News reports:

Without a covering, the hangar’s frame and foundation will be exposed to the elements. That’s a problem because there are toxic materials in the soil underneath the hangar that could leach out because of rain exposure, Siegel said. Additionally, the Navy has set up some $12 million worth of scaffolding to remove the hangar’s skin. If supporters are able to put a new covering on the hangar right after that process ends, that scaffolding can be left in place. If not, it will have to be removed and then replaced later at a cost of some $1 million to $2 million more, Siegel said.

The Google founders want to use 2/3 of the NASA hangar to house their 11 jets, one of which is currently being sold. The deal hasn’t yet gone through, and still needs approval from necessary NASA/Navy boards. If approved, the restoration project will begin next summer.