This is the basis of a paper I wrote for a conference several years back, although not specifically for schools. The basic idea is to finance adaptability rather than sustainability. To do this involves using systemic risk variants as a part of the depreciation of whole life costing.

Unfortunately the costed gains are rarely sufficient to be considered for government buildings, even thought their buildings have long life cycles and low opportunity costs assigned to the value of money. The main reason for this is probably political together with the fact that 'sustainability' is the current buzz-word.

S surplus school in aour area was just that ; as seniors center. Many groups had designs on the school. As of now though, it is slated for demolition. Possible replacements are a two level senior/daycare center and community theater.

Good idea. The key here is to build in features that will make it easier to convert the building to another use in the future but don't greatly increase the initial cost. Here, too, we have a lot of old schools that were converted to residences. One of the biggest dilemmas is what to do with the high ceilings. Usually they just put in a false ceiling at residential height and let the extra 3-4 feet go unused. It also means much longer stairways going to second floor than would be the case in an apartment house built from scratch.

Hospitals are notoriously sick places requiring large sums to be spent to keep infection at bay. Disposable, stackable wards and theatres could be burnt.

And I thought you wanted to design buildings with removeable tops.

I think that sounds more fun than this.