Whole house remodel architect in Bellevue, WA

Short answer: pick the architect who can tell you, before you pay for drawings, which of Bellevue’s rules will decide your remodel. Four usually do: whether the house is nonconforming, whether your scope crosses the replacement value line the city uses, which permit track the scope lands on, and how long the city has been taking on that track. I design whole house remodels in Bellevue for a fixed fee, about $10,000 to $200,000 depending on the project budget and location, and the first feasibility check is free and takes about a day.

This page is for a Bellevue owner with a remodel budget of $750,000 or more who is comparing architects. Piper Cole designs the project and administers construction on your behalf. It does not build, so the builder you hire answers to you and to the drawings. The rules and numbers below come from the City of Bellevue’s own documents, read on 8 October 2026. They move, so confirm with the city.

What Bellevue’s rules do to a whole house remodel

Most of what shapes a Bellevue remodel sits in the Land Use Code and on the city’s permit pages. These are the rules that change a design, and what I do about each one.

Rule	What the city says	What it does to a remodel
Nonconforming house (LUC 20.20.561)	A house that was legal when built but misses today’s setbacks, height or coverage may stay, and alterations must meet current rules. In the LL, SR and LDR-1 districts, when the value of alterations exceeds the replacement value of all primary structures on the site, the house and site must be brought into full compliance. Alterations in the preceding three years count as one.	This is the line between a remodel and a rebuild in practice. I size the scope against it before design starts. Work required for fire inspection, accessibility, seismic retrofit or stormwater facilities, and routine maintenance, is left out of the count.
Size (LUC 20.20.390)	Floor area ratio applies to additions that increase the house by 20 percent or more. The July 2026 omnibus ordinance (6931 on the council agenda) rewords the base, so ask which floor area the city measures from. For one house the cap is 0.5 of the first 10,000 sq ft of site plus 0.3 of the rest.	If the base is a 3,000 sq ft house, an addition of 600 sq ft reaches 20 percent (3,000 x 0.20). On a 12,000 sq ft site the cap is 5,600 sq ft (5,000 + 2,000 x 0.3).
Height	30 ft to a flat roof or 35 ft to a pitched ridge, measured from average existing grade. For new houses and additions, no facade may exceed 40 ft from the existing grade at the base of that wall.	On a sloped lot the downhill wall decides a second story. A roof pitched under 2:12 counts as flat.
Permit track	BU is a change within the house that does not increase its area. BR is an addition under 3,000 sq ft of attached floor space, a deck or a detached building. BS is a new house or an addition over 3,000 sq ft of new and replaced floor area.	Scope picks the track, and the track picks the documents and the review time. Moving a bearing wall or turning a garage into living space puts the job in plan review.
Stormwater	Redevelopment with 2,000 sq ft or more of new plus replaced hard surface, or 7,000 sq ft or more of land disturbance, must meet Minimum Requirements 1 through 5 (Surface Water Engineering Standards, January 2026 edition).	A storm drainage report and stormwater site plan are on the city’s minimum document list for an addition. I ask the city early whether your roof and paving count as replaced surface.
Trees	Minimum tree density applies to alterations and additions to existing structures, met by keeping trees, planting them or both. The site plan must show each tree with species, trunk diameter and protection zone.	I have the trees located at the start of design, because they affect where an addition can go.
Critical areas	Streams, wetlands, floodplain, steep slopes greater than 40 percent, unstable soils and their buffers go on the site plan. A geotechnical report or critical areas permit may be required.	I check the city’s maps before concept design. A buffer found late changes the plan.
Lakefront	The nonconforming rules above do not apply to structures that are nonconforming to the Shoreline Overlay (LUC 20.25E), which has its own rules.	A lake house gets a second rulebook. See my waterfront remodel guide.

Sources: Ordinance 6906 as posted for the 17 March 2026 council meeting (the city says the council approved it that day and lists 6906 as a final ordinance) for LUC 20.20.561; Ordinances 6851 and 6931 (as posted for the 28 July 2026 meeting) for LUC 20.20.390 and the height notes; Bellevue height, trees, residential site plan, permit type and addition permit pages; Surface Water Engineering Standards D1-04.1(b). I could not read the codified section or confirm the effective date. As of 8 October 2026, confirm with the city.

The first row deserves a closer look. The old rule, LUC 20.20.560, tested a remodel against 100 percent of replacement value over any three year period, let an expansion extend along existing setbacks in single-family districts, and asked for proportional site improvements above 30 percent of value on a nonconforming site. Ordinance 6906 repealed that section. In the text I read, LUC 20.20.561 keeps a replacement value line and a three year window for the LL, SR and LDR-1 districts, and says alterations must conform to current rules. It carries neither the 30 percent site tier nor the allowance to extend along existing setbacks. The July omnibus ordinance, as listed on the council agenda, does not amend the section. My comparison of Eastside remodel thresholds says the same. Because I could not confirm the effective date or read the codified section, ask the city which wording governs your project.

Two practical points follow. First, the city asks the applicant to document that the house was permitted when it was built, so old permit records matter. Second, the valuation method matters, because it sets the ratio. The city’s 2018 Value of Improvements form, written for the older section, describes a Marshall Valuation estimate, less deferred maintenance, or the King County assessed value at your option, and it warns you not to hire an estimator until the city confirms the rule applies to you. The 2026 text says the estimate comes from a cost estimator the Director accepts, and defines replacement value as the cost to replace the structure, minus deferred maintenance. Ask which method applies. The addition permit page lists that form among the minimum documents, which means the question comes up at the start of every addition. An illustration with made up numbers: with a replacement value of $1,000,000, a scope of $900,000 stays under the line and a scope of $1,100,000 crosses it.

For setbacks, lot coverage and the zone names that changed in 2025, see my Bellevue zoning guide. For the application steps, see the Bellevue building permit guide.

How long Bellevue review takes, in the city’s own numbers

Bellevue publishes how long permits actually took. The report below covers permits completed from 5 October 2025 to 5 October 2026, excluding over-the-counter types.

Permit	What it covers, per the city	Completed	Median days	Average days
BU, remodel	Any change within an existing dwelling that does not increase the area	177	13	35
BR, addition to existing structure	Attached addition under 3,000 sq ft, or a deck. Detached buildings use the same permit	168	76	143
BS, new house	New one or two family house, or an addition over 3,000 sq ft of new and replaced floor area	238	164	240
BS, major addition	Same permit, addition activity	7	189	267
BE, structure demolition	Demolition of a structure, including a house	49	91	141

Source: City of Bellevue Development Services, Processing Days by Application Type grouped by Activity Type, completed 10/5/2025 to 10/5/2026. The report does not define how days are counted or whether time spent waiting on the applicant is included.

Read the medians as a spread, not a promise. A remodel that moves structure without adding area has cleared in about two weeks at the median. An addition took about 11 weeks (76 days). A new house took about 23 weeks (164 days). The BU figure covers every structural remodel the city completed, from moving a header to a larger scope, and the report does not separate them, so a whole house scope should not assume the 13 day figure. For a scope that adds area, I plan on the BR row. The city’s published review targets are 14 days for a first decision on BU, BR and demolition permits and 21 days on BS, and the city says actual times vary with completeness, site conditions and workload.

If the remodel starts to look like a rebuild, the same report is a fair comparison: a structure demolition took a median of 91 days and a new house 164. I weigh the two in remodel or tear down and the demolition permit guide.

What changes the cost and the schedule

Item	Planning figure	What moves it
Design and permit fee	Fixed fee, about $10,000 to $200,000	Project budget and location. The scope you agree to is the scope the fee covers.
Whole house renovation	$300 to $550 per sq ft	Condition of the structure, how much of the plan changes, new systems throughout, access to the site.
Additions	$350 to $650 per sq ft	New foundation, roof and envelope, and the permit track.
Design to permit submission	Typically 2 to 4 months	Survey, existing conditions, engineering and your decisions.
City review	See the table above	Permit type, completeness of the first submission, comments.

Planning ranges from Piper Cole, not quotes. Construction cost before design fees, permits, sales tax and contingency.

At those ranges, $750,000 of construction renovates roughly 1,364 to 2,500 sq ft ($750,000 divided by $550, and by $300). The spread comes from the house, not the tile. The million dollar remodel guide shows where the money goes first, and the Bellevue whole house remodel cost guide has the cost side in more detail.

Four things move a Bellevue project beyond the house itself. The nonconforming test can force a smaller scope or a plan to meet today’s code. The permit track sets the documents and the wait. Stormwater, trees and critical areas add reports and sometimes consultants. And turning a garage or unfinished basement into living space, or adding an accessory dwelling unit, takes the job out of the no-plan-review permit; the energy code side is in my energy code guide.

Permit fees are set by the city. Bellevue says its fee estimator is a general guide, that some fees are flat and some are deposits billed monthly against review and inspection hours, and that the 2026 amounts are in its fee ordinance. I do not quote them here. Ask Permit Processing for an estimate on your scope, in writing. The way I build a fee estimate is in my Seattle permit fee guide, though Bellevue’s schedule is its own.

What to ask any architect before you sign

1. Is my house nonconforming, and how will you establish its replacement value? The answer should name the Bellevue rule and the valuation method, and say what the city will want to see.
2. Which permit type will my scope land on, and how long did that type take last year? An architect who has read the city’s report can answer with a number.
3. Is the fee fixed, and is it set before drawings start? Some firms bill a percentage of construction cost. Ask what happens to the fee if the budget moves.
4. What sits inside the fee and what sits outside it? Surveyor, structural engineer, geotechnical engineer, arborist and the city’s permit fees are the usual ones.
5. What does the fee cover when the city sends comments? Correction cycles are normal. Know whether they are included.
6. What will you check on my lot before I pay for design? Trees, critical areas, stormwater, floor area and, on the water, the shoreline.
7. Do you administer construction, and do you build? I administer construction for you and do not build, so the person judging the work is not the person doing it.
8. When do I get a straight answer on whether the project fits the budget? Mine comes at the free feasibility check, before any design fee.

How the work runs, in order

Step	Typical time	What you get
Free feasibility check	About a day	Whether the plan fits the lot, the code and the budget at a basic level.
In-depth analysis, if you want it	$1,500, 2 to 3 weeks	A deeper look at zoning, code and budget before full drawings. For a Bellevue house, this is where the replacement value question gets worked.
Design to permit submission	Typically 2 to 4 months	Drawings, engineering and the permit set, filed on MyBuildingPermit.
City review	See the table above	Comments, revisions and an issued permit.
Bidding and construction	Set by scope and builder	Leveled bids, a contract, and my administration of construction for you.

Where the drawings are far enough along, bidding can overlap city review. The fixed fee is quoted for design and permit once the scope is agreed.

A word about who you would be hiring. I have worked as an architect since 1996, I am an AIA member since 1992 and an NCARB member since 1996, and I take on 20 to 30 projects a year. I have won three Masonry Excellence Awards, for commercial projects. The Carr residence was featured in Above The Lake and Lux magazines. My office is in Kirkland, and the remodels I take on start at a project budget of $750,000.

Questions

How much does an architect cost for a whole house remodel in Bellevue?

I quote a fixed fee for design and permit, set by the project budget and location, typically about $10,000 to $200,000 depending on scope. The first feasibility check is free and takes about a day. An in-depth analysis is $1,500 and takes 2 to 3 weeks. Ask any firm whether its fee is fixed and what sits inside it.

Do I need an architect to remodel my house in Bellevue?

Not by law. RCW 18.08.410 exempts design work for a residential building of up to four dwelling units from the architect licensing requirement. Bellevue’s remodel permit page asks for an architectural plan at minimum, and structural plans may be required during review. An architect prepares those drawings, coordinates the engineers and surveyor, and answers the city’s comments.

Will my Bellevue remodel be treated like a new house?

Only if the house is nonconforming and the work crosses the city’s line. As I read the 2026 ordinance, LUC 20.20.561 says that in the LL, SR and LDR-1 districts, when alterations in a three year window exceed the replacement value of all primary structures on the site, the house and site must be brought into full compliance. A house that already meets current rules has no such line. I could not confirm the effective date, so confirm the current wording with the city.

What permit do I need for a whole house remodel in Bellevue?

It depends on scope. Bellevue uses BU for structural changes within the house that do not increase its area, BR for an addition under 3,000 square feet, and BS for a new house or an addition over 3,000 square feet of new and replaced floor area. Non-structural work can be a BT permit with no plan review, but not if it moves bearing walls or converts unconditioned space to living space.

How long does Bellevue take to review a remodel permit?

The city’s report for permits completed from 5 October 2025 to 5 October 2026 shows a median of 13 days for BU remodels, 76 days for additions to existing structures and 164 days for new houses. The report does not say how it counts days, and the city says actual times vary. The city’s published first review targets are 14 days for BU and BR and 21 days for BS.

How much house can $750,000 renovate?

At the planning range of $300 to $550 per square foot for a

whole house renovation

, $750,000 of construction covers roughly 1,364 to 2,500 square feet. That excludes design fees, permits, sales tax and contingency, and a builder’s bid on finished drawings is the real number.

Can I add a second story to my Bellevue house?

It depends on the lot and the house. Bellevue allows 30 feet to a flat roof or 35 feet to a pitched ridge from average existing grade, and no facade of a new house or addition may exceed 40 feet from the existing grade at the base of that wall. An addition that increases the house by 20 percent or more also brings the floor area cap into play. If the house is nonconforming, the replacement value test applies too.

Does Piper Cole build the project?

No. Piper Cole designs the project and administers construction on your behalf, and it does not build. You contract with the builder, and I work for you during construction.