I am an architect & a photographer, with my day job being an architect. My suggestion is you seek out well known public, or high quality commercial buildings, research them and their architects and look at ways of photographing their buildings that show some understanding of the ideas or intend as expressed by the architect. The best architectural photography is not dusk shots illustrating warm interiors, or curtain wall facades reflecting dramatic skies, but an series of images that reveal those ideas, and are excellent images in their own right.
Some of today's great architects use well known artists to photograph their work. You could look at Herzog and de Meuron and their works photographed by Thomas Ruff for example.
Good luck with your efforts.