Bellevue, West Bellevue to Somerset
Architect in Bellevue, WA
New custom homes, whole house remodels and additions in Bellevue, including waterfront in Enatai and hillside lots in Somerset. Permit sets built for Bellevue’s own review tracks and critical areas rules.
The first feasibility check is free and usually takes about a day. You speak to the architect, not a salesperson.
Why local matters
Bellevue has its own rules, and they change the design
Bellevue is one of the most active markets for this practice. Homeowners who bought mid century houses are now investing $400,000 to $1M and more to bring them up to the standard of the street around them.
What makes Bellevue different is regulatory. A two track residential permit system, a strict reading of the Substantial Improvement rule, and a Critical Areas Ordinance that affects a large share of lots.
Pricing a Bellevue remodel from a national calculator usually leaves the budget short by 20% to 35%.
What gets designed here
Work in Bellevue
Bellevue work covers the full range, from luxury waterfront residences in West Bellevue to mid century remodels in Lake Hills and Factoria.
- Custom homes. Full BR track permit packages, including civil and grading plans, arborist reports and energy code documentation.
- Waterfront residences. West Bellevue and adjacent Medina are among the most expensive residential markets in the state, often on Lake Washington.
- Whole house remodels. Where the Substantial Improvement rule decides the scope long before the finishes do.
- Additions. Primary suites, kitchen expansions and second stories, which is how many Bellevue families get the space without moving.
- ADUs. Bellevue allows ADUs on most residential lots.
On the water
Waterfront and hillside Bellevue
Enatai waterfront and Somerset hillsides are two very different problems. One brings shoreline rules and setbacks from the water, the other brings steep slope review and retaining work.
Both reward mapping the constraints first. In Bellevue that means pulling the GIS overlay before developing a concept, because finding a buffer on paper is far cheaper than finding it after the foundation is dug.
Permits
Bellevue permit timelines
Bellevue permits go through City of Bellevue Development Services, submitted via MyBuildingPermit.com. Nearly all additions and custom homes run on the BR track.
| Project | Typical review |
|---|---|
| Residential addition | 4 to 8 weeks |
| New single family home | 8 to 14 weeks |
| Commercial or mixed use | 10 to 20 weeks, plus design review |
Review times as published for Bellevue’s current process. Correction cycles extend these, which is why a complete first submission matters.
Site constraints
Bellevue’s Critical Areas Ordinance
Governed by LUC 20.25H. On a large share of Bellevue projects at least one of these affects the design:
- Steep slopes. Grades over 15% need geotechnical review, and slopes over 40% trigger 25 to 50 foot buffers where nothing can be built.
- Wetlands. Buffers from 25 feet for Category IV up to 200 feet for Category I, which directly limits rear additions and ADU placement.
- Streams. Kelsey Creek, Coal Creek and their tributaries carry 50 to 150 foot setbacks.
- Substantial Improvement. Bellevue triggers full code compliance at a lower threshold than most homeowners expect.
Budget
What projects cost, in round numbers
These are the same figures used everywhere on this site. The estimators on the linked pages turn them into a number for your size and scope.
| Project | Typical range | Estimator |
|---|---|---|
| Architect led custom home | $500 to $800 per sq ft | cost to build page |
| High end custom or waterfront | $800 to $1,200 and up per sq ft | cost to build page |
| Whole house remodel | $300 to $550 per sq ft | whole house remodel page |
| Home addition | $350 to $650 per sq ft | home addition cost page |
| Detached ADU | $200,000 to $400,000 | ADU cost guide |
| Architecture fee | 8% to 15% of construction | architect fees page |
Swipe the table sideways to see every column
Eastside figures from the cost pages on this site, each of which has an estimator that gives you your own number. Land, site work and permits sit on top of construction.
Where
Bellevue neighborhoods
Bellevue work spans West Bellevue, Enatai, Somerset, Lake Hills, Newport Hills, Factoria, Eastgate, Crossroads, Newcastle, BelRed and the downtown core.
Questions
Building in Bellevue, answered
Do you work in Bellevue?
Yes. Piper Cole Architects is based in Kirkland and Bellevue is part of the regular work. Bellevue is one of the most active markets for the practice.
How long does a permit take in Bellevue?
About 4 to 8 weeks for a residential addition and 8 to 14 weeks for a new house, before correction cycles. Commercial and mixed use run 10 to 20 weeks plus design review.
What does an architect cost in Bellevue?
Typically 8% to 15% of construction for full service, toward the top of that range on waterfront, steep or otherwise constrained lots because they take more design time. The architect fees page has a calculator for your own budget.
Do I need an architect for a house in Washington?
Not by law. RCW 18.08.410 exempts single family homes and buildings of four units or fewer from the stamp requirement. You will need permitted drawings and usually structural engineering. People hire an architect because the lot, the code or the design is complicated, not because the law requires one.
What happens on the first call?
You describe the property and what you want to do. David Meade tells you what the site and the code are likely to allow, what it tends to cost and what to check first. The first feasibility check is free and usually takes about a day.
Will the Critical Areas Ordinance affect my lot?
Quite possibly. Steep slopes, wetlands and streams each carry buffers under LUC 20.25H, and they are checkable from the GIS overlay before any design time is spent. That check comes first.
Plan the project
Cost and service pages
- Cost to build a house in SeattleNew build cost by tier, with an estimator
- Architect feesWhat the design work costs, with a calculator
- Home addition costEvery addition type, with an estimator
- Whole house remodel costCost by depth, and the code trigger that moves budgets
- Custom home designNew houses on the lakes and on difficult lots
- Home additionsOut or up, and what it costs
- ADU and DADU designGarage conversions to backyard cottages
- Waterfront and lakefront homesShoreline lots and teardown rebuilds on the lakes
Nearby
Nearby cities
- Architect in Kirkland, WALocal permits, costs and the kind of work done there
- Architect in Redmond, WALocal permits, costs and the kind of work done there
- Architect in Mercer Island, WALocal permits, costs and the kind of work done there
- Architect in Medina, WALocal permits, costs and the kind of work done there
- Architect in Newcastle, WALocal permits, costs and the kind of work done there
- Architect in Issaquah, WALocal permits, costs and the kind of work done there
Next step
Talk about your Bellevue property
Describe the lot and what you want to do with it. You speak to David Meade directly, not a salesperson, and the first feasibility check is free and usually takes about a day.
Our Architecture Services
Full-service architecture for Architect Bellevue: Custom Homes, Remodels, Additions and the greater Seattle area: