Building – Alterationmultifamily_alteration
$1,450,000
118 W 119th St, Manhattan, NY
flag:roof_missingflag:type_ambiguouspluto:joined
2,474,522 Multifamily Alteration permits in New York City
Updated 6h ago via daily refresh. Multifamily Alteration subset of the 7,632,699 total New York City permits indexed.
Permits indexed2,474,522Across New York City
RefreshDailyLast update 2026-05-24 02:00 ET
Cohort classifierLLM-1Field-level DQ flags inline
What this cohort covers
What counts as Multifamily Alteration in New York City?
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 New York City
Other cohorts in New York City
- Temporary Construction Support146,192
- Commercial Alteration119,563
- Multifamily New Construction73,249
- Commercial Demolition50,520
- Residential MEP30,408
- Commercial New Construction27,845
- Residential New (Single-Family)18,834
- Commercial MEP9,575
- Industrial New Construction6,723
- Residential Demolition6,429
- Residential Foundation-Only4,606
- Civic Construction1,324
- ADU-Qualifying Construction
- Commercial Pool Construction
- Commercial Shell-Only Construction
- Commercial Signage Permits
- Residential Alteration
Multifamily Alteration in other metros
FAQ
Frequently asked about multifamily alteration permits in New York City
- How many multifamily alteration permits are pulled in New York City each year?
- 2,474,522 multifamily alteration permits are currently indexed for New York City. 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 New York City?
- The grid above shows the most recent multifamily alteration permits in New York City, 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 New York City refreshed?
- New York City 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 New York City 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 New York City 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.