I have just embarked on an ambitious project--recreating the Santa Barbara County Courthouse using the Half-Life engine. I just came back from Santa Barbara for a weekend vacation, and I met the County architect and obtained the floor plan of the building from him.
I might have to leave out some architectural details, due to r_speeds limits. I hope it's an attainable goal.
The building is a beauty. It's on the same level as the new Getty Center in LA as far as its architectural significance goes.