Terracing makes a dynamic statement, and can be used to extend the architecture of buildings into a sloping landscape. Retaining walls and steps are solid, permanent additions and a long-term investment. Measuring and building them are skilled jobs at both the design and construction stages. Wooden decking is a cheaper solution; materials are lighter, but not as long-lasting.
Here, tiered wooden beams behind a low wall provide perfect conditions for sun-loving plants. Note the spout holes in the brick wall; it's important to plan for drainage when working with sloping sites.