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Washington, DC building permits

Washington, DC has 506,454 permits classified across 12 segments, led by residential mep (44%) and residential new (single-family) — each with field-level data-quality flags. Reliable permit valuations total ≈$44.4B (across the 35% of filings with a valuation we can stand behind). Filing activity is down 6% over the last 90 days versus the prior 90. Parcel-joined. 23 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.
506,454 permits classified · field-DQ-cleared · refreshed nightly

524,503 permits in Washington, DC. Use Explore the data below for the filterable view.

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Where the value concentratesWashington, DC
Permit mix by segment
Reliable value by segment
Filing momentum
Prior 90d9,328
Last 90d8,726

-6% vs prior 90d

Based on filings in the source's current publication window — not the all-time indexed total.

LiveLast 10 days of permits · Parcel-joined · 23 IBC segments · field-level DQ flags
23 IBC segments tracked10 active in Washington, DC10 refreshed in the last 14 dayssee per-segment freshness →
index rebuilt yesterday
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, DC
Residential MEP220,833Residential New (Single-Family)83,893Residential Alteration57,299Commercial MEP55,996Commercial Alteration51,575Residential Solar19,156Commercial New Construction11,265Residential Demolition3,114Commercial Signage Permits1,946Commercial Demolition1,284Multifamily New Construction86Multifamily Alteration7

11 segments: no permits in window.

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Coverage: Live · refreshed nightly · Parcel-joinedDevelopers — query the permit API →Get Washington, DC permits via API or bulk export (Parquet / CSV) →