Drive through almost any Adelaide suburb with a sloping block and you will see the same thing: soil held back by a wall. Retaining walls Adelaide properties depend on do three jobs. They hold soil in place, manage water and turn a tilted yard into flat, usable space. The right wall depends on height, soil and the look you want. What Does a Retaining Wall Actually Do? A retaining wall holds back soil on a slope so the ground above it stays put. It also gives you level space for a lawn, patio or garden bed that would otherwise tilt...