# Building permits at 1509 E 31st Ave, Denver, CO One permit here in the last two years. The newest, Aug 12, 2025: Addition permit, no description from the city. Within a quarter mile, the city has issued 5 more permits since May 1. One is for a new building, 0.21 mi away. ## At this address | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | Aug 12, 2025 | Addition | | $76,000 | [2025-RESCON-0000693](https://nearbypermits.com/denver/permit/2025-RESCON-0000693/) | ## Within ¼ mi since May 1, 2026 5 permits in the circle. From our copy of the city's data (last 24 months). ### This block (250 to 1,000 ft), 2 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Sep 15, 2026 | [3020 N Franklin St](https://nearbypermits.com/denver/address/3020-n-franklin-st/) | 520 ft SE | Addition | | Not listed | [2026-RESCON-0002308](https://nearbypermits.com/denver/permit/2026-RESCON-0002308/) | | Jul 28, 2026 | [3101 N Marion St](https://nearbypermits.com/denver/address/3101-n-marion-st/) | 880 ft W | Alteration or repair | | $15,000 | [2026-COMMCON-0001291](https://nearbypermits.com/denver/permit/2026-COMMCON-0001291/) | ### Farther (1,000 ft to ¼ mi), 3 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Aug 18, 2026 | [3100 N Downing St](https://nearbypermits.com/denver/address/3100-n-downing-st/) | 0.20 mi W | Alteration or repair | | $2,500 | [2026-COMMCON-0001181](https://nearbypermits.com/denver/permit/2026-COMMCON-0001181/) | | Jul 22, 2026 | [2855 N Franklin St](https://nearbypermits.com/denver/address/2855-n-franklin-st/) | 0.21 mi S | New building | | $180,000 | [2026-RESCON-0000196](https://nearbypermits.com/denver/permit/2026-RESCON-0000196/) | | May 20, 2026 | [3310 N Gilpin St](https://nearbypermits.com/denver/address/3310-n-gilpin-st/) | 0.22 mi NE | Alteration or repair | | $4,000 | [2026-RESCON-0000809](https://nearbypermits.com/denver/permit/2026-RESCON-0000809/) | --- Source: Denver Community Planning and Development permit data (https://www.arcgis.com/home/item.html?id=014a873bf7444a658fc2ea0da7ad0704), City of Denver Open Data Catalog, CC BY 3.0 (https://creativecommons.org/licenses/by/3.0/). Checked 2026-10-06 22:06 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ Map, the one permit at this address and 5 nearby: https://nearbypermits.com/denver/address/1509-e-31st-ave/