Generally, yes: if you took the photos, you typically own the copyright in those images and can sell them. The main issue is not usually selling the photo itself, but how the buyer plans to use it.

Editorial or fine-art uses are often less problematic. Commercial uses—such as advertising, branding, or design materials—can create issues if a recognizable building design, sign, or other protected element is involved. Some buildings or architectural designs may be trademarked or otherwise restricted for commercial use.

So the practical answer is: you can sell the photos, but commercial use by the buyer may require extra caution or permissions depending on what is depicted and how the image will be used. If you plan to license the images for advertising or stock, check the specific platform’s rules and consider getting legal advice for anything high-value or clearly branded.