Photographic copyright laws are long established and primarily do not change whether or not the image is captured and/or reproduced by digital or other means. If your photo was legally taken then someone else cannot use it for any purpose without your consent. By definition any photo is copyrighted at the moment it is created. The copyright generally belongs to the photographer unless sold or transferred. However, if the subject is private property photographed without permission then the usage would be limited. For example, you could display the photo on your website or elsewhere if the purpose of the photo was non-commercial, i.e., would not be used for advertising. The photo could also be used for editiorial purposes unless the accompanying text could be deemed defamatory. An example of a definite no-no would be to display a photo of the building adjacent to an article about crack houses. An article about beatiful homes of the Northeast would be fine. Also, if the building were only a small part of a larger scene, such as the skyline of a major US city, then one would be OK in using it for multiple purposes.
There are many legal books about photographs and their uses. The bottom line is that it is always a good idea to get a release if possible.