Building – Alterationmultifamily_alteration
$1,820,000
1212 Folsom St, San Francisco, CA
flag:roof_missingpluto:joined
286,803 Multifamily Alteration permits in San Francisco
Updated 9h ago via daily refresh. Multifamily Alteration subset of the 870,400 total San Francisco permits indexed.
Permits indexed286,803Across San Francisco
RefreshDailyLast update 2026-05-24 02:00 PT
Cohort classifierLLM-1Field-level DQ flags inline
What this cohort covers
What counts as Multifamily Alteration in San Francisco?
Multifamily alteration permits cover changes to existing apartment and condo buildings — unit-level reconfigurations, common-area overhauls, structural retrofits, roof replacements, and substantial systems work. The highest-volume multifamily cohort in most US metros because turnover + aging-stock maintenance dominate filings against existing buildings.
Recent multifamily alteration permits in San Francisco
Other cohorts in San Francisco
- Commercial Alteration242,979
- Commercial Signage Permits15,244
- Multifamily New Construction4,572
- Residential Alteration4,510
- Commercial Demolition3,224
- ADU-Qualifying Construction2,821
- Commercial New Construction1,793
- Residential Demolition526
- Industrial New Construction31
- Civic Construction
- Commercial MEP
- Commercial Pool Construction
- Commercial Shell-Only Construction
- Residential Foundation-Only
- Residential MEP
- Residential New (Single-Family)
- Temporary Construction Support
Multifamily Alteration in other metros
FAQ
Frequently asked about multifamily alteration permits in San Francisco
- How many multifamily alteration permits are pulled in San Francisco each year?
- 286,803 multifamily 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 multifamily alteration permits in San Francisco?
- The grid above shows the most recent multifamily alteration permits in San Francisco, paginated 25 per page. For programmatic access — filter by cohort, by date range, by contractor — use the PermitCore API or download via the sandbox.
- How is the multifamily alteration data in San Francisco refreshed?
- San Francisco permit data is refreshed daily from the city's open-data portal. Cohort classification is applied automatically via PermitCore's LLM-1 classifier; field-level data-quality flags surface inline so you can filter for clean rows.
- Can I export San Francisco multifamily alteration permits?
- Yes — the free tier includes 5K rows of CSV export per month. Paid tiers expand to Parquet export, 50K-2M rows, and webhook delivery on new multifamily alteration permit filings.
Custom delivery
Want Multifamily Alteration in San Francisco permit data delivered to your CRM or warehouse?
Self-serve API tiers cover most use cases. If you need direct delivery to Salesforce, HubSpot, Snowflake, BigQuery, or a custom warehouse — tell us the shape and we'll scope a path. Replies within one business day.