# Building Permits API – City Permits, Valuations and Contractors: findings

3 posts built from the [Building Permits API – City Permits, Valuations and Contractors](https://pushbuild.com/apis/building-permits.html).

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Property & housing · 2026-11-07

### [How many demolition permits does Chicago issue a year? Half as many as in 2015](https://pushbuild.com/apis/analysis/chicago-demolition-permits/)

Chicago issued 1,210 demolition permits in 2015 and 661 in 2025. Los Angeles issues far more: 1,871 in…

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Property & housing · 2026-11-07

### [Seattle permitted 44% fewer new homes in 2025 than in 2021](https://pushbuild.com/apis/analysis/seattle-housing-units-permitted/)

Building permits in Seattle added 16,123 housing units in 2021 and 8,972 in 2025. 2023 was the low, at…

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Property & housing · 2026-11-07

### [Austin's rooftop-solar permits have halved since 2022](https://pushbuild.com/apis/analysis/solar-permits-austin-chicago-philadelphia/)

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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As of 2026-11-07. Source: https://pushbuild.com/apis/analysis/api/building-permits/