Commercial Alteration permits in Washington, DC
≈$14.1B in reliable permit value across 51,541 commercial alteration filings in Washington, DC. The contractor leaderboard for this segment is rolling out.
refreshed Jul 17, 2026 · classified, not scraped
Contractors winning Commercial Alteration in Washington, DC
Ranked by permit volume · 51,541 filingsCommercial Alteration isn't classified in Washington, DC yet — this list populates automatically as the pipeline ingests and classifies filings. Here's what we do have in Washington, DC:
90-day movers
Momentum not yet available for this segment.
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
Free to explore — no card.
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 →Get the full Commercial Alteration target list for Washington, DC.
Every ranked contractor, recent projects, and a daily email when new permits land — scoped to your segment and metro.
- Residential MEP220,520
- Residential Alteration57,257
- Commercial MEP55,894
- Commercial Alteration51,541
- Residential Solar19,144
- Residential MEP220,520
- Residential Alteration57,257
- Commercial MEP55,894
- Residential Solar19,144
Frequently asked about commercial alteration permits in Washington, DC
- How many commercial alteration permits are pulled in Washington, DC each year?
- 51,541 commercial alteration permits are currently indexed for Washington, DC. 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 Washington, DC?
- The board above ranks the contractors winning commercial alteration permits in Washington, DC 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 Washington, DC refreshed?
- PermitCore rebuilds the Washington, DC 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 Washington, DC 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.