# Addition permit BLD-SFD2025-00525 at 4520 Nassau Pl, Boulder

Boulder Planning and Development Services permit BLD-SFD2025-00525: issued Jan 20, 2026 for addition work at 4520 Nassau Pl. Interior remodel w/ small second floor addition. To include new windows, finishes, exterior finishes.

- Permit number: BLD-SFD2025-00525
- Issued: Jan 20, 2026
- Type of work: Addition (city: Building Permit - Single Family Detached Dwelling, Addition and Alteration)
- Status: Issued (city: Issued)
- Reported cost: $650,000
- ZIP code: 80301
- All permits at this address: https://nearbypermits.com/boulder/address/4520-nassau-pl/

---
Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-09 08:06 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 4520 Nassau Pl: https://nearbypermits.com/boulder/address/4520-nassau-pl/