Detroit building permits
Detroit's commercial permit activity is led by residential alteration — 84% of the 39,598 permits PermitCore classifies across 4 commercial segments there. Reliable permit valuations total ≈$9.8B (across the 100% of filings with a valuation we can stand behind). Filing activity is up 46% over the last 90 days versus the prior 90 — a market heating up. 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.
39,598 building permits classified · field-DQ-cleared · refreshed nightly
41,736 building permits in Detroit. Use Explore the data below for the filterable view.
Where the value concentratesDetroit
Permit mix by segment
- Residential Alteration33,274
Reliable value by segment
Filing momentum
+46% vs prior 90d
MAPPEDLast 10 days of permits · parcel-joined · 22 IBC segments · field-level DQ flags
4 of 4 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 Detroit” 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.
Detroit by segment
Sourced from the segment-distribution artifact · Each links to that segment in DetroitResidential Alteration33,274Commercial Alteration5,145Residential New (Single-Family)826Commercial New Construction353
18 segments: no permits in window.