Washington, DC building permits
Washington, DC has 140,766 commercial permits indexed across 8 segments, led by commercial mep (40%) and commercial alteration — each with field-level data-quality flags. Filing activity is down 16% over the last 90 days versus the prior 90. Parcel-joined ~93%. 22 IBC segment tags. Field-level data-quality flags. Older history available via free signup or API; the recency module on this page surfaces the last 10 days.
140,766 permits classified · field-DQ-cleared · refreshed nightly
158,693 permits in Washington, DC. Use Explore the data below for the filterable view.
Where the value concentratesWashington, DC
Permit mix by segment
- Commercial MEP55,660
- Commercial Alteration51,449
- Residential Solar19,105
Reliable value by segment
- Commercial Alteration$14.1B
Filing momentum
-16% vs prior 90d
MAPPEDLast 10 days of permits · Parcel-joined ~93% · 22 IBC segments · field-level DQ flags
6 of 6 segments currentsee per-segment freshness →
index rebuilt today
Why this data is real
We classify permits into real segments — and label what we don't know.
Classified, not scraped
We read each permit's work-type, scope, and occupancy fields to place it in a real segment — so “commercial HVAC in Washington, DC” means real HVAC work, not a keyword match.
Parcel-joined + enriched
Every permit is joined to its tax lot and geocoded, with roof & HVAC sized — you see the building, not just the address.
— and we flag what we don't know
Coverage is labeled, missing fields show —, and where there are too few reliable filings to stand behind a value we publish —, never a fabricated number.
Washington, DC by segment
Sourced from the segment-distribution artifact · Each links to that segment in Washington, DCCommercial MEP55,660Commercial Alteration51,449Residential Solar19,105Commercial New Construction11,257Commercial Signage Permits1,930Commercial Demolition1,272Multifamily New Construction86Multifamily Alteration7
14 segments: no permits in window.