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Commercial Alteration permits in San Francisco

$29.5B in reliable permit value across 244,078 commercial alteration filings in San Francisco. The contractor leaderboard for this segment is rolling out.

refreshed Aug 10, 2026 · classified, not scraped

Classification scopeClassification precision for Commercial Alteration in San Francisco has not yet been measured against our ≥99% certification bar. The permits are shown; treat the cohort boundary as provisional until certification.
Find Commercial Alteration contractors near your branchEnter your address — see who’s pulling these permits in your radius.

Contractors winning Commercial Alteration in San Francisco

Ranked by permit volume · 244,078 filings

The contractor leaderboard for Commercial Alteration in San Francisco is rolling out — 244,078 classified filings are already indexed. Browse them in the Market Explorer →

90-day movers

Momentum not yet available for this segment.

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 Commercial 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 Commercial Alteration momentum crosses a threshold.Single-window signal (last 90 days vs the prior 90) — at most once a week, no account.
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Email when Commercial Alteration momentum in San Francisco crosses +25%.

Get the full Commercial Alteration target list for San Francisco.

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 San Francisco territory — a weekly Commercial Alteration digest.No account needed — new Commercial Alteration permits across San Francisco, once a day when something new lands. Unsubscribe anytime.
Market chartspoint-in-time snapshot
Typical project size · commercial alteration · San Francisco$20Kmiddle 50% · across 189,736 valued permits
Aggregate, point-in-time — free to view. Export the underlying numbers with Pro.
Other segments in San Francisco
Commercial Alteration in other metros
Browse San Francisco another way
FAQ

Frequently asked about commercial alteration permits in San Francisco

How many commercial alteration permits are pulled in San Francisco each year?
244,078 commercial alteration permits are currently indexed for San Francisco. Volume varies year over year; PermitCore tracks both historical totals and current rolling-window activity.
Where can I see the latest commercial alteration permits in San Francisco?
The board above ranks the contractors winning commercial alteration permits in San Francisco 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 commercial alteration data in San Francisco refreshed?
PermitCore rebuilds the San Francisco 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 San Francisco commercial 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.