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Boston building permits

Boston has 591,095 commercial permits indexed across 13 segments, led by residential mep (39%) and commercial mep — each with field-level data-quality flags. Reliable permit valuations total ≈$92.8B (across the 96% 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 ~86%. 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.
591,095 permits classified · field-DQ-cleared · refreshed nightly

604,684 permits in Boston. Use Explore the data below for the filterable view.

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Where the value concentratesBoston
Permit mix by segment
Reliable value by segment
Filing momentum
Prior 90d8,240
Last 90d7,779

-6% vs prior 90d

Top contractors by recent momentumSee all Boston contractors →
MAPPEDLast 10 days of permits · Parcel-joined ~86% · 22 IBC segments · field-level DQ flags
10 of 11 segments currentsee per-segment freshness →
index rebuilt today

Top contractors in Boston

Ranked by permits indexed · Each links to that contractor in Boston
HomeWorks EnergyCommercial Alteration606HomeWorks EnergyMultifamily Alteration398sal QuerusioCommercial Alteration257Renewal by AndersenMultifamily Alteration253Romain StreckerMultifamily Alteration196Wise ConstructionCommercial Alteration190NeeecoMultifamily Alteration175Siena Construction CorporationCommercial Alteration170
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 Boston” 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.

Boston by segment

Sourced from the segment-distribution artifact · Each links to that segment in Boston
Residential MEP230,715Commercial MEP136,100Residential Alteration127,180Commercial Alteration61,109Residential Solar15,304Residential Demolition5,224Commercial Signage Permits4,839Commercial Demolition4,781Multifamily Alteration3,177Residential New (Single-Family)1,679Commercial New Construction846Residential Foundation-Only77Multifamily New Construction64

9 segments: no permits in window.

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  • Segment × metro prospecting — who's winning what
  • CRM-ready export — enriched + parcel-joined
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Coverage: MAPPED · refreshed nightly · Parcel-joined ~86%Developers — query the permit API →Get Boston permits delivered to your CRM →