Analysis by API
Building Permits API – City Permits, Valuations and Contractors: findings
3 posts built from the Building Permits API – City Permits, Valuations and Contractors.
How many demolition permits does Chicago issue a year? Half as many as in 2015
Chicago issued 1,210 demolition permits in 2015 and 661 in 2025. Los Angeles issues far more: 1,871 in…
Seattle permitted 44% fewer new homes in 2025 than in 2021
Building permits in Seattle added 16,123 housing units in 2021 and 8,972 in 2025. 2023 was the low, at…
Austin's rooftop-solar permits have halved since 2022
Austin issued 2,479 permits mentioning solar in 2022 and 1,202 in 2025. Chicago peaked at 2,363 in 2024 and fell to 1,929; Philadelphia went from…
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