Structure

Hi all,

I am making a site for a contractor. I would like to display each project as a gallery in a post. Then Classify each project as addition, remodel or new construction. That is all fine, the problem is I would like for the viewer to be able to view the pictures by tags (e.g. doors, windows, roofing, framing etc.}.
Right now the way to accomplish this seems like i need to make each image an individual post in custom post type “project-images” then have a custom taxonomy for project name and another for project type then use tags to classify the specifics. I feel that this probably is not the most efficient way of doing this.
Any Suggestions?