architectural floorplan drawing of a modern three story coastal residence ground floor open floor plan with front gym mudroom with storage and single lite glass door organized garage with tool wall open stair grand piano placement in living area small backyard access with large sliding glass doors second floor 10 ceilings master bedroom with closet behind bed stain glass double interior doors multiple bedrooms game room with bar custom bookcases cork wall for pin collection display shelving for disney figures purse and costume storage reptile enclosure and craft workspace third floor atrium style climate controlled space roof terrace with railing storage room flat roof structure with precast slab construction design constraints use rectangular footprint per survey minimal west facing windows large east facing sliders modern coastal style with clean lines include dimensions walls and realistic circulation architecture