Commercial Alteration permits across the US
We index 3,796,400 Commercial Alteration permits across 51 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%), Washington, DC (5%).
Commercial Alteration permits by metro
- New York City2,082,805
- San Francisco285,589
- Los Angeles207,386
- Washington, DC190,384
- Austin121,183
- Chicago116,043
- Orlando76,043
- Charlotte75,267
- Boston72,320
- Columbus55,856
- Cleveland51,504
- Phoenix49,059
- San Diego45,653
- Seattle41,561
- Minneapolis40,868
- Fort Worth40,451
- Raleigh40,211
- Miami38,525
- Denver36,867
- San Antonio20,281
- Philadelphia19,117
- Las Vegas13,975
- Cincinnati12,665
- Nashville7,721
- Milwaukee7,348
- Reading6,038
- Atlanta5,935
- Memphis5,785
- Pittsburgh5,697
- Baltimore5,191
- Detroit4,936
- Norfolk4,451
- Hartford3,603
- Tucson2,678
- Louisville1,238
- Sacramento738
- San Jose502
- Doral228
- Hawaii County107
- New Hanover County86
- Wake County75
- West Palm Beach66
- Miami Gardens62
- Miramar57
- Santa Fe46
- Marco Island43
- Walton County38
- Greenville32
- Whatcom County31
- Columbus30
- Clayton County25
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.