I hope you got my answer earlier on your other question. If you will send me the address of the home, I may know or will be able to find out for you the builder is. There are 5 or 6 custom builders that I am familiar with in the West and Northwest areas. I also know of custom builders who can design a home the way you would want it or very close to a home you have seen and also maximize the mountain views. One of the best designers in the area is Carl Whitten of the Whitten Design Group that we have worked with to draw up plans for a custom home build. The answers below are also good resources to get an answer. Contact me. We are here to assist you with all of your Denver area real estate needs.
Robert McGuire ASR
Your Castle Real Estate
Direct - 303-669-1246
Another way to consider is to do a search on properties in the same neighborhood that have been for sale. There may be information on those listings indicating who the builder was. (Very likely there will be.)
One other thing you might do is copy the listing photo of the front of the house. (Either right-click and then "Save As" or shift-print screen, then copy to Paint and save.) Then go to TinEye http://(www.tineye.com) and have it search on your image to see if it brings up anything similar. If it doesn't, this might work: Plug in the address of the property into Google. Do a search. Then, after it's searched and found some results, click "Images" on the top bar. That'll produce images that are related to the property. If you find one of the front of the house, hover your pointer over that image. At the bottom of the image, you'll have a choice of "Find Similar" and "Other Sizes." Click "Find Similar." That may produce other images that are very similar--perhaps the same design...with a different address, or on the builder or architect's website. You may be able to track your information down that way.
Hope that helps.