Exterior, Flat RoofLine, House Building Type, Metal Siding Material, and Cabin Building Type Collector's Retreat by Heliotrope Architects is situated at the top of a steep hill, with southwest views and a forest on the opposite side. Outside, a carport doubles as a dining terrace in inclement weather, while the lower terrace with the fire pit serves as the primary focus for summer leisure. Collector's Retreat by Heliotrope Architects