A large, grey concrete building with multiple rows of windows and a modernist design. People walk in and out of the entrance, where a blue sign reads James Watt School of Engineering. Trees frame the scene, and the sky is partly cloudy.
A concrete ventilation structure stands against a rough, pebbled building wall. Above it, rectangular windows line the building. A bicycle rack and a parked bike are visible in front, with scattered debris on the dark pavement.
A brutalist-style building with exposed concrete, rows of rectangular windows, and a tall cylindrical chimney. The sky is blue with a few clouds visible. Pipes and industrial elements are seen along the building’s dark exterior wall.
A large, grey, concrete Brutalist-style building with rectangular windows, angular features, and exterior staircases. People walk by on the pavement; trees and a blue sky with scattered clouds are visible in the background.

Close your eyes, and imagine how this would have looked before it had uPVC windows put in.