How many commercial alteration permits are pulled in Seattle each year?

41,735 commercial alteration permits are currently indexed for Seattle. Volume varies year over year; PermitCore tracks both historical totals and current rolling-window activity.

Where can I see the latest commercial alteration permits in Seattle?

The board above ranks the contractors winning commercial alteration permits in Seattle by volume and reliable value. To browse the underlying permit filings themselves — filter by cohort, by date range, by contractor — use the PermitCore API or the Market Explorer.

How is the commercial alteration data in Seattle refreshed?

PermitCore rebuilds the Seattle index nightly. The underlying municipal source publishes on its own cadence, which varies by jurisdiction, so each page stamps its own freshness (the "as of" date) rather than promising a fixed interval — and a stale source is marked as such. Segment classification is applied automatically by PermitCore's classification engine; field-level data-quality flags surface inline so you can filter for clean rows.

Can I export Seattle commercial alteration permits?

Yes — the free tier includes 5,000 exports / month (CSV or Parquet); one bulk export counts as 1 export regardless of row count. Pro removes the cap with unlimited exports and full-data browse across all jurisdictions.

HomeSeattleCommercial Alteration

Every contractor winning Commercial Alteration in Seattle.

≈$18.0B in reliable permit value across 41,735 filings — ranked by who’s pulling them, what they’re worth, and how fast they’re moving.

Get this target list →Open the Market Explorer Recent commercial alteration filings

refreshed Aug 10, 2026 · classified, not scraped

Classification scopeClassification precision for Commercial Alteration in Seattle has not yet been measured against our ≥99% certification bar. The permits are shown; treat the cohort boundary as provisional until certification.

Find Commercial Alteration contractors near your branchEnter your address — see who’s pulling these permits in your radius.

Contractors winning Commercial Alteration in Seattle

Ranked by permit volume · 41,735 filings

#	Contractor	Commercial Alteration permits	Reliable value	90d
1	U Of W Building Permit	400	≈$726M	—
2	Amazon.com	270	≈$169M	—
3	Seattle School District (a&s)	239	≈$434M	—
4	Blanket: Bank Of America Tower	216	—	—
5	Burgess Design, INC	186	≈$20.9M	—
6	City Of Sea F&fd	177	≈$103M	—
7	Blanket: Two Union Square	163	—	—

The ranked list continues — reliable values and contacts for all 321 contractors in this segment.See the full leaderboard →

Contractors with too few reliable filings to stand behind a value still rank by volume — their value shows —, never a fabricated number.

90-day movers

Momentum not yet available for this segment.

12 more — too few recent filings to score.

What’s in the full list

Every contractor ranked by reliable value
Recent projects + permit-level detail per contractor
A daily email when a new filing lands
CRM-ready export — enriched + parcel-joined

See your territory →

Free to explore — no card.

Why this list is real

These contractors are ranked from classified permits, not keyword scrapes. We read each permit’s work-type, scope, and occupancy fields to place it in Commercial Alteration — so a filing that looks like a generic alteration lands in the right segment, and the ranking reflects real work. When the fields don’t support a confident call we mark it Unclassified — we never force a wrong segment to pad a contractor’s count.

How we classify →

Alert me when Commercial Alteration momentum crosses a threshold.Single-window signal (last 90 days vs the prior 90) — at most once a week, no account.

Get the full Commercial Alteration target list for Seattle.

Every ranked contractor, recent projects, and a daily email when new permits land — scoped to your segment and metro.

See your territory →Pro — $89/mo · self-serve

Keep tabs on your Seattle territory — a weekly Commercial Alteration digest.No account needed — new Commercial Alteration permits across Seattle, once a day when something new lands. Unsubscribe anytime.

Market chartspoint-in-time snapshot

Permits by segment

Typical project size · commercial alteration · Seattle$65K

middle 50% · across 34,968 valued permits

Aggregate, point-in-time — free to view. Export the underlying numbers with Pro.

Other segments in Seattle

Commercial Alteration in other metros

Browse Seattle another way

FAQ

Frequently asked about commercial alteration permits in Seattle

How many commercial alteration permits are pulled in Seattle each year?: 41,735 commercial alteration permits are currently indexed for Seattle. Volume varies year over year; PermitCore tracks both historical totals and current rolling-window activity.
Where can I see the latest commercial alteration permits in Seattle?: The board above ranks the contractors winning commercial alteration permits in Seattle by volume and reliable value. To browse the underlying permit filings themselves — filter by cohort, by date range, by contractor — use the PermitCore API or the Market Explorer.
How is the commercial alteration data in Seattle refreshed?: PermitCore rebuilds the Seattle index nightly. The underlying municipal source publishes on its own cadence, which varies by jurisdiction, so each page stamps its own freshness (the "as of" date) rather than promising a fixed interval — and a stale source is marked as such. Segment classification is applied automatically by PermitCore's classification engine; field-level data-quality flags surface inline so you can filter for clean rows.
Can I export Seattle commercial alteration permits?: Yes — the free tier includes 5,000 exports / month (CSV or Parquet); one bulk export counts as 1 export regardless of row count. Pro removes the cap with unlimited exports and full-data browse across all jurisdictions.