We augment lawns with living infrastructure. The trim that settles stormwater, tames torrents, and filters filth.
Three ways we protect your property, your watershed, and your bottom line.
Route stormwater from impervious surfaces into established conveyances. Less runoff, lower King County SWM fees.
90% velocity reduction through check dams and meanders. Controlled cascades, not chaos.
Heavy metals, oils, petroleum compounds, sediment. Gone. 99% pollutant removal before it reaches the creek.
Seven engineered layers working together beneath the beauty.
Engineered contours slow the rush. Water pools, pauses, and percolates on your terms.
Precise slopes guide every drop. No ponding, no erosion. Just controlled flow.
Seven layers strip heavy metals, petroleum, and sediment. What leaves is clean.
Up to 90% of stormwater absorbed on-site. Less burden on aging municipal systems.
Infrastructure that looks like landscape. Your neighbors will want one too.
Three Pacific Northwest natives, engineered to work together. Planted in naturalistic drifts. Seasonal structure that performs year-round.
Evergreen groundcover native to the PNW. Dense root system stabilizes soil and prevents erosion. Leathery leaves shed water into the swale channel.
Massive fronds intercept rainfall, slowing velocity before it reaches the swale floor. Root networks create natural biofilter channels in the soil media.
The workhorse of wetland filtration. Dense clumping growth traps sediment. Root zone hosts microbial communities that break down petroleum compounds and heavy metals.
Choose your colors. We plant the natives that make them happen.
King County charges a Surface Water Management fee based on your property's impervious surface percentage. More pavement and roof = higher fee. A bioswale converts impervious area into permeable, living infrastructure, dropping you into a lower rate class and saving real money every year. Qualifying installations may also be eligible for RainWise rebates of up to $4,000.
Every installation is finished by hand with traditional Japanese garden tools and forged ironwork.
We don't outsource the critical stuff. Purpose-built for Seattle bioswales.
Native plants. Engineered drainage. No mowing, no fertilizing, no irrigation battles. Your swale gets healthier on its own. We check in quarterly. That's it.
A dedicated app, a knowledge library for subscribers, and smart irrigation integration. Your swale doesn't just sit there. It reports back.
Real-time flow data from your submeter. Seasonal health reports. Maintenance scheduling. Your swale in your pocket.
Exclusive content unlocked for subscribers. Bioswale science, Oudolf planting guides, seasonal care playbooks, Seattle permit navigation. Stay in the ecosystem.
State-of-the-art irrigation tied into our platform. Smart zones that respond to actual soil moisture and weather forecasts. Water only when needed. The swale tells you.
Track gallons filtered, velocity reduction, and estimated pollutant capture. Real data for real performance. Exportable for permit compliance.
Walsh Residence, Cedar Creek
Launching August 2026. Limited to 50 homes in Year One. Every residential install ends with a branding ceremony. A heated iron seared into your western red cedar check dam. Plus:
A custom basalt marker engraved with your swale's name, GPS coordinates, and installation date.
A heated iron brand seared into your western red cedar check dam. Smoke, char, permanence.
A SWALE-engraved Japanese hori hori garden knife. Walnut handle, 7" stainless blade, serrated edge. Yours to keep.
We'll reach out before August 2026 with your slot details.
Each engineered for its context. All maintained by Swale.
High-density stormwater engineering for offices, retail, and mixed-use. City credit strategies for watershed-positive contributions. Built for ROI and Green Factor compliance.
Designed for single-family and low-rise multifamily. Turns a permit requirement into a selling feature. Includes engraved stone, iron branding ceremony, and custom hori hori.
Watershed-scale stormwater redesign. We partner with cities to rethink how wastewater moves through the built environment. Complete process transformation.
Free 30-minute site assessment. We'll show you what a swale can do for your property, your permit, and your bottom line.
We'll be in touch within 24 hours.