HomeWashington, DCResidential Alteration

Residential Alteration permits in Washington, DC

≈$2.5B in reliable permit value across 57,308 residential alteration filings in Washington, DC. The contractor leaderboard for this segment is rolling out.

Browse the filings in the Market Explorer →Recent residential alteration filings

refreshed Jul 28, 2026 · classified, not scraped

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

Contractors winning Residential Alteration in Washington, DC

Ranked by permit volume · 57,308 filings

The contractor leaderboard for Residential Alteration in Washington, DC is rolling out — 57,308 classified filings are already indexed. Browse them in the Market Explorer →

Live segments in Washington, DC

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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
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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 Residential 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 Residential 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.

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Market chartspoint-in-time snapshot
Permits by segment
Typical project size · residential alteration · Washington, DC$19Kmiddle 50% · across 55,593 valued permits
Aggregate, point-in-time — free to view. Export the underlying numbers with Pro.
Other segments in Washington, DC
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Browse Washington, DC another way
FAQ

Frequently asked about residential alteration permits in Washington, DC

How many residential alteration permits are pulled in Washington, DC each year?
57,308 residential 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 residential alteration permits in Washington, DC?
The board above ranks the contractors winning residential 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 residential 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 residential 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.