Commercial Alteration permits across the US
We index 3,826,022 Commercial Alteration permits across 52 US metros in 23 states — led by New York City, San Francisco, Los Angeles. Every permit is classified into a real segment, parcel-joined, and flagged for data quality.
Activity concentrates in New York (55%), California (14%), Texas (5%).
Commercial Alteration permits by metro
- New York City2,091,535
- San Francisco286,215
- Los Angeles208,204
- Washington, DC191,620
- Austin121,529
- Chicago116,515
- Orlando76,190
- Charlotte75,302
- Boston72,860
- Columbus54,894
- Cleveland51,548
- Phoenix49,366
- San Diego45,847
- Seattle41,749
- Minneapolis41,299
- Fort Worth40,709
- Raleigh40,469
- Miami39,991
- Denver37,137
- San Antonio31,081
- Philadelphia19,384
- Las Vegas14,040
- Cincinnati12,794
- Nashville8,305
- Milwaukee7,348
- Atlanta6,217
- Reading6,097
- Memphis5,923
- Pittsburgh5,842
- Baltimore5,208
- Detroit4,989
- Norfolk4,508
- Hartford3,720
- Tucson2,795
- Louisville1,308
- Sacramento987
- San Jose581
- Doral444
- Hawaii County305
- Wake County194
- New Hanover County161
- Miami Gardens126
- West Palm Beach98
- Miramar92
- Walton County83
- Marco Island74
- Santa Fe70
- Greenville64
- Columbus64
- Clayton County53
- Whatcom County46
- Lake County42
Historical coverage
These metros' sources were discontinued — their Commercial Alteration permits remain queryable, but aren't counted in the national total above.
Counts are live from the classified index, refreshed nightly. Each metro links to its full Commercial Alteration breakdown — recent permits, contractors, and the raw feed.