Cool deck design / TG: we could put this over the lawn mower parking pad that already looks like the wood underneath.
Ground level deck foundations
Lay perforated drainage tubing at base. Water-soaked soil is the worst enemy of retaining walls because it exerts enormous pressure behind the wall. Adding good drainage behind block or stone walls is crucial for long-lasting, bulge-free walls. Start by laying perforated plastic drainage tubing along the base of the wall slightly above ground level so it can drain to daylight. Slope the tubing about 1/4" per foot.
DIY Ground Level Deck Update | Aprons and Stilletos
Steps to build a ground-level deck at The Home Depot
Budget Ground Level Deck Cutout
A free-standing, ground level deck is a clever way to extend your living space or create a detached entertaining space.