Capstone Custom Homes Austin . Visit capstone custom homes's profile on zillow to find ratings and reviews. 1 review of capstone custom homes jonathan and his team at capstone custom homes built our unique 5000 sq ft home in the hill country outside austin. Capstone Homes at Jasper in Prescott Valley, AZ New Homes by from www.newhomesource.com And all are able to be fully personalized. Capstone homes are highly energy efficient, with foam. Lots 22, 23, 28, 30, 31 and 32 available for your custom built home home starting at $270k.