How much does an addition like this run?

Thank you for your inquiry. This sunroom was constructed with the rest of the home, not as a separate addition. With regard to determining cost for a project, due to the wide variability of labor and operating costs across the country, it is best to find a reputable local contractor to advise you. NARI (National Association of the Remodeling Industry or your local Builder's Association) is a good place to start searching for a contractor. Best of luck on your project.

Kind regards,

Kyle Hunt & Partners, Inc.