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

1 multifamily alteration permits are currently indexed for Chicago. 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 Chicago?

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

PermitCore rebuilds the Chicago 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 Chicago 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.

HomeChicagoMultifamily Alteration

Every contractor winning Multifamily Alteration in Chicago.

Classification: not yet measured

1 multifamily alteration filings in Chicago, ranked by who’s pulling them and how fast they’re moving — reliable value shown where we can stand behind it.

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

refreshed nightly · classified, not scraped

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

Classification coverageOf 867,787 permit records we hold for Chicago, 359,089 (41.4%) carry the work markers our cohort rules need — the rest are published without a residential/commercial signal we can classify on. Of those, 358,526 (99.8%) are placed in a cohort. Certification measures whether that placement is right — not how much of the corpus reaches it.

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

Contractors winning Multifamily Alteration in Chicago

Ranked by permit volume · 1 filings, all time

#	Contractor	Multifamily Alteration permits	Reliable value	90d
1	Lendlease (Us) Construction INC.	1	≈$6.8B	—

The ranked list continues — reliable values and contacts for every contractor 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

Momentum not yet available for this segment.

1 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 →

Get the full Multifamily Alteration target list for Chicago.

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 Chicago territory — a weekly Multifamily Alteration digest.No account needed — new Multifamily Alteration permits across Chicago, once a day when something new lands. Unsubscribe anytime.

Market chartspoint-in-time snapshot

Permits by segment

Typical project size · multifamily alteration · Chicago

—below reliability threshold

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

Other segments in Chicago

Multifamily Alteration in other metros

Browse Chicago another way

FAQ

Frequently asked about multifamily alteration permits in Chicago

How many multifamily alteration permits are pulled in Chicago each year?: 1 multifamily alteration permits are currently indexed for Chicago. 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 Chicago?: The board above ranks the contractors winning multifamily alteration permits in Chicago 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 Chicago refreshed?: PermitCore rebuilds the Chicago 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 Chicago 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.