How many multifamily alteration permits are pulled in Boston each year?

3,204 multifamily alteration permits are currently indexed for Boston. Volume varies year over year; PermitCore tracks both historical totals and current rolling-window activity.

Where can I see the latest multifamily alteration permits in Boston?

The board above ranks the contractors winning multifamily alteration permits in Boston 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 multifamily alteration data in Boston refreshed?

PermitCore rebuilds the Boston 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 Boston multifamily 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.

HomeBostonMultifamily Alteration

Every contractor winning Multifamily Alteration in Boston.

Classification: not yet measured

≈$662M in reliable permit value across 3,204 filings, all time — ranked by who’s pulling them, what they’re worth, and how fast they’re moving.

Get this target list →Open the Market Explorer Recent multifamily alteration filings

refreshed Aug 7, 2026 · classified, not scraped

Classification scopeClassification precision for Multifamily Alteration in Boston has not yet been measured against our ≥99% certification bar. The permits are shown; treat the cohort boundary as provisional until certification.

Classification coverageOf 661,347 permit records we hold for Boston (boston), 598,271 (90.5%) carry the work markers our cohort rules need — the rest are published without a residential/commercial signal we can classify on. Of those, 584,549 (97.7%) are placed in a cohort. Certification measures whether that placement is right — not how much of the corpus reaches it. These figures are for Boston (boston) alone; this metro also draws on 2 other jurisdictions, measured separately.

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

Contractors winning Multifamily Alteration in Boston

Ranked by permit volume · 3,204 filings, all time

#	Contractor	Multifamily Alteration permits	Reliable value	90d
1	Romain Strecker	89	≈$1.1M	—
2	Akelius	79	≈$8.5M	new
3	Homeworks Energy	46	≈$1.8M	-100%
4	Neeeco	39	≈$1.3M	-73%
5	Renewal By Andersen	36	≈$5.4M	0%
6	Fisher Windows	35	≈$1.7M	-80%
7	Clean Tech Construction	29	≈$577K	-100%

The ranked list continues — reliable values and contacts for all 170 contractors in this segment.See the full leaderboard →

Contractors with too few reliable filings to stand behind a value still rank by volume — their value shows —, never a fabricated number.

90-day movers

4 more — too few recent filings to score.

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

See your territory →

Free to explore — no card.

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 Multifamily 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 →

Alert me when Multifamily Alteration momentum crosses a threshold.Single-window signal (last 90 days vs the prior 90) — at most once a week, no account.

Get the full Multifamily Alteration target list for Boston.

Every ranked contractor, recent projects, and a daily email when new permits land — scoped to your segment and metro.

See your territory →Pro — $89/mo · self-serve

Keep tabs on your Boston territory — a weekly Multifamily Alteration digest.No account needed — new Multifamily Alteration permits across Boston, once a day when something new lands. Unsubscribe anytime.

Market chartspoint-in-time snapshot

Permits by segment

Typical project size · multifamily alteration · Boston$28K

middle 50% · across 3,121 valued permits

Aggregate, point-in-time — free to view. Export the underlying numbers with Pro.

Other segments in Boston

Multifamily Alteration in other metros

Browse Boston another way

FAQ

Frequently asked about multifamily alteration permits in Boston

How many multifamily alteration permits are pulled in Boston each year?: 3,204 multifamily alteration permits are currently indexed for Boston. Volume varies year over year; PermitCore tracks both historical totals and current rolling-window activity.
Where can I see the latest multifamily alteration permits in Boston?: The board above ranks the contractors winning multifamily alteration permits in Boston 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 multifamily alteration data in Boston refreshed?: PermitCore rebuilds the Boston 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 Boston multifamily 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.