I work at an architectural firm and volunteer to photograph buildings we don't have the budget for a professional photographer. This is a composite of several photos. One for the sky, one for the building exterior and 4 for the interior lights. All the blinds were down and the lights were on a timer so had someone run through the building opening all the blinds and triggering all the lights. They were on a 10 minute timer so could not get all the light in one shot. They were added by simply using the lighten blend mode. Other then that basic edits to contrast color and exposure.
Canon 5dMK4 with 24mm TSE. F11, 2 seconds, ISO 100