When considering architectural photography, night time or more especially twilight can add an extra dimension to night building photography.
The same building from the same position at twilight will look quite different than at mid-day. For a start, all the daylight shadows will be gone. The ambient light, combined with street lighting and interior lighting switched on will reveal details not seen during daylight.
As part of a photographic survey for an architect, night building photography compliments and enhances aspects more commonly seen during daylight.