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Residential Alteration permits across the US

We index 5,311,744 Residential Alteration permits across 38 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 California (34%), New York (21%), Texas (7%).

Residential Alteration permits by metro

Historical coverage

These metros' sources were discontinued — their Residential 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 Residential Alteration breakdown — recent permits, contractors, and the raw feed.