Stormwater Design · Bellingham
Stormwater design in Bellingham, engineered by the bench that works here.
If your Bellingham project touches pavement, rooftop, or grade, the City is going to ask for a stormwater plan — and the difference between a smooth approval and a season of correction cycles is usually the quality of that first submittal.
AXE Engineering was founded in Bellingham in 2017. Our office is on Coho Way, our engineers review against the City of Bellingham's stormwater standards every week, and our stamped designs — bioretention cells, infiltration trenches, detention, conveyance — are built into projects across town, from single-lot infill to multi-building commercial sites.
Who this page is for
- Builders and developers submitting site plans inside Bellingham city limits
- Homeowners adding impervious surface — additions, shops, ADUs — who triggered a stormwater requirement
- Architects and designers who need a PE-stamped drainage sheet to complete a permit set
- Property owners in the Lake Whatcom watershed facing stricter phosphorus and runoff rules
What AXE handles
- Full stormwater site plans for new construction and redevelopment
- Bioretention, rain garden, and infiltration system design
- Detention and conveyance sizing with supporting calculations
- Stormwater reports to accompany building and land-use permits
- Lake Whatcom watershed compliance, where enhanced treatment rules apply
- Responses to City review comments on stalled submittals
The local picture
Bellingham administers its own stormwater code on top of the Department of Ecology's Stormwater Management Manual for Western Washington. Thresholds are driven by how much new or replaced hard surface your project creates — cross 2,000 square feet and you should expect engineered stormwater to be part of your permit.
Projects in the Lake Whatcom watershed carry additional requirements aimed at protecting the city's drinking-water supply. We design to those standards from the first sketch, which is dramatically cheaper than retrofitting a plan after a review letter.
Commonly served ZIP codes in this area: 98225 · 98226 · 98229
How it works, start to stamp.
01 · Feasibility look
We review your parcel, soils, and proposed footprint against City of Bellingham thresholds — and tell you honestly what level of stormwater design the project actually needs.
02 · Design + calculations
We engineer the facilities — infiltration, bioretention, detention — and run the supporting modeling so the plan holds up under technical review.
03 · Stamped submittal
You get a PE-stamped plan set and stormwater report formatted the way City reviewers expect, submitted with your permit package.
04 · Review support through approval
If the City has comments, we turn responses fast — same bench, same engineer, until the approval lands.
PE-licensed. Founded 2017. One engineer of record from feasibility through approval.
Questions we hear about stormwater design in Bellingham.
Do I need a stormwater plan for a home addition in Bellingham?
It depends on how much new or replaced hard surface you create. Small projects may only need simple on-site measures; cross the City's thresholds and an engineered plan is required. Send us your parcel number and a rough footprint — we'll tell you which side of the line you're on, usually the same day.
What's different about building in the Lake Whatcom watershed?
The watershed feeds Bellingham's drinking water, so projects there face enhanced treatment and tighter phosphorus controls. The design approach changes — more infiltration, more treatment area — and we account for that from the start.
My stormwater submittal got a correction letter. Can you take it over?
Yes — taking over stalled submittals is regular work for us. We review the City's comments, fix the engineering, and resubmit under our stamp.
How fast can you get me a proposal?
Written proposal within one business day of your call or form submission. For $500 we can also run a 5-day feasibility study before you commit to full design.
Building in Bellingham?
Tell us the parcel and what you're planning. Written proposal within one business day — from the office on Coho Way.
Start the conversation