Install 20x20-foot flagstone patio on flat ground behind home. Connect house and patio via a lift-and-slide glass door. Put gaspowered fire pit in the center of the patio and surround it with four mid-priced, all-weather deck chairs. Opposite home, install stoneveneer modular kitchen unit with gas grill, mini-refrigerator, sink, and storage. On each corner, erect 20x20-foot cedar pergola capable of holding an awning that can shade the flagstone area. Install midpriced, low-voltage lights on pergola sufficient to illuminate patio at night. Install underground gas and electrical connections.