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Before: an open, eroding slope
The yard ended at a steep wooded hillside with no clear edge, loose soil and debris sliding toward the garden.
Project Overview
A retaining wall that holds the slope with a fence and lights on top
This Sammamish backyard ended at a steep, wooded slope that kept washing soil and leaves into the lawn and garden. We built a long concrete block retaining wall to hold the hillside back, gain a flat, usable yard and create a clean edge along the property line.
The work included clearing and excavating the slope, filter fabric behind the wall, a compacted gravel base, the first course set to string line and level, drainage gravel and perforated drain pipe behind the blocks, stacked charcoal concrete blocks with a dark cap, block steps up to the upper level, warm LED lights built into the cap and steps, and a cedar frame fence with black welded wire panels mounted on top of the wall.
Completed in Sammamish, WA, this project adds to Acosta Landstone's portfolio in King County. We provide retaining wall installation and fence installation across the Eastside, Snohomish, King and Pierce Counties.
See more of our work: Backyard Fence, Paver Walkway & Retaining Wall in Sammamish, Concrete Block Retaining Wall & Cedar Fence in Seattle and Modern Privacy Fence in Bellevue, or browse all projects.
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BEFORE · PROCESS · AFTER
From a loose wooded slope to a lit wall with a fence.
How this Sammamish backyard went from an open, eroding slope to a concrete block retaining wall with steps, lighting and a fence on top, step by step.
02
Process: fabric, base & blocks
We excavated the slope, laid filter fabric and a gravel base, set the first course to line and stacked the blocks with drainage.
03
After: wall, steps, light & fence
A charcoal block wall with a dark cap, lit steps and LED cap lights, topped with a cedar and wire fence.