The garden he built up there was laid atop a very solid structure over the garage, a building that could support a high rise, built with rebar every 6 inches (it had to support multiple firetrucks). Many, many tons of sod were laid over a strong rubber lining on the flat roof. For a decade, flowers and vegetables grew, and low and behold a tree! Unfortunately, roots are strong and they dug through the rubber coat and created a permanent leak in the roof of the structure.

How to remove all that sod then and repair the leak?

The problem cost almost as much as the building itself.

I didn't buy.

I have pictures though of that wonderful, beautiful rooftop garden. It was amazing.

Note to self: when building a rooftop garden, keep it small.