Thanks, DJ, some good info there. The title is a little misleading, I was asked to make something like this today in 1/5 scale, but the video didn't cover late baroque candelabra:
This little structure still needs doors, steps, and shingle roofing, but everything you see here is 100% scratchbuilt from styrene sheet and strip, including the windows. There's not a single commercial part here.
One a little bit more in-progress and unpainted. The walls are a core of .040" styrene sheet with Plastruct concrete-block pattern sheet laminated to the outside. The doors are scratchbuilt from V-groove scribed sheet and styrene strip for the bracing/trim.