This Swim Spa with retractable Nana Walls was designed in 2005 and constructed in 2006 in Castle Pines Village. The clients wanted a swim spa that could be open to the patio during the Summer, but closed off during the cooler months. Nana Walls surround 2 walls of the pool house. Patio is bluestone flagstone with concrete "tiles". Mexican pebbles grout the concrete tiles. Design: Courtney McRickard - Threesixty Design Denver Construction: Browne and Associates, llc Photography: Michael Peck