On the Snohomish County side of Bothell the lots sit between newer housing and the Sammamish River trail. Roofs, drives, and the trail corridor move a lot of water. The soils are urban soils: graded, compacted, and quick to grow moss where the sun is weak. Small yards become one surface. That surface has to be the drainage plan, not a lid on top of the drainage problem.
Snohomish County · ZIP 98021
The backyard that is mostly patio
We check the side-yard escape route for water before we pave the basin shut. Permeable pavers or a drain across the low end are often the right call. A solid slab from fence to house, dead level, is how basement windows get a pond.
The work is fussy because every inch is in the way of a door, a hose bib, or a gate. We measure those. A patio that blocks the gate you use for the cans is a failed design even if the pavers are straight.
The ground in Bothell
We work the north side of the city, not a pretend second office. Yards are a mix of older ramblers and newer houses with small planting strips and a patio poured on tight fill. Runoff is the theme. A permeable patio or a short drain does more for the foundation than a wider concrete pad.
People here ask for plantings that feed birds and do not need a sprinkler all summer. That fits. Native beds along a back fence, a bark layer that is actually thick enough to suppress weeds, and a lawn that is aerated instead of constantly reseeded. Pressure washing keeps the walks and the siding from going black under the trees. The trail is a nice neighbor and a weed source. Edges need a clean line or the brush moves in.
How we do the work
A patio here is a roof at ground level. It has to shed water, it has to sit on rock instead of clay, and it has to meet the door without holding a puddle at the threshold. We build in pavers most of the time because a paver field can be lifted and reset. A cracked slab is a demolition.
We talk about furniture, the grill, and the way you actually walk out before we draw a rectangle that looks big on paper and tips water at the house.
What we look at first
- The door threshold and which way the yard falls
- Downspouts landing in the patio area
- How many people, and whether there is a fire pit or a cover
- Access for excavation
Fire pits
Set in a place the smoke can leave and the embers are not in the bark. The pit sits on the same honest base as the patio, not on four pavers in the dirt. Clearance to the house and to branches is part of the layout, not a surprise after the first fire.
What it costs more to ignore
Drainage and the base. They are the unphotogenic half of the invoice. Cutting them is how a patio gets rebuilt. We would rather build a smaller floor on a real base than a big one on clay.
Furniture first
We size the floor to the table you own, the grill lid that has to open, and the walk around them. A large empty patio with the table in a puddle is a bad large patio. Bring the measurements.
More from this crew
- Patio installation across Snohomish County
- Paver installation in Bothell
- Hardscaping in Bothell
- Retaining walls in Bothell
- Landscape design in Bothell
- Patio installation in Mill Creek
- Patio installation in Lynnwood
- Patio installation in Brier
Sources for the climate and the water
- USDA plant hardiness map for choosing plants that can take a Snohomish County winter.
- EPA WaterSense on watering less once a lawn or a new planting is established.
- EPA Soak Up the Rain on keeping roof and yard water from becoming someone else’s problem.
