Lots going on, so this has taken me ages to get finished. Lots of modelling sections separately and then joining, use of the mirror modifier, some playing around with materials (glass for the windows and emissive for the lamps). Bumped the sampling for cycles up to 1024 and I’m pretty happy how it looks.
The lamps on the building were modelled in a separate file that I split into two versions depending which way I was fixing them to the building; this allowed me to work at a much larger scale and then append and rescale as necessary.
Overhead lights (used in all the ground-floor doorways, only two of which are visible):
Wall light (used over the balcony doorway):