Boulder building & ADU permits
Recent permit activity, updated continuously.
229
Permits tracked
7
ADU permits
5
Distinct ZIP codes
Jun 19, 2026
Newest permit
Recent permits
A sample of the freshest permits in this jurisdiction — ZIP and city only (no street addresses).
| ZIP | Permit type | ADU type | Valuation | Applied |
|---|---|---|---|---|
| 80304 | Residential | — | $1,300,000 | Jun 19, 2026 |
| 80304 | Residential | — | $2,233 | Jun 19, 2026 |
| 80304 | Residential | — | $450,000 | Jun 19, 2026 |
| 80304 | Residential | — | $450,000 | Jun 19, 2026 |
| 80304 | Residential | — | $450,000 | Jun 19, 2026 |
| 80304 | Residential | — | $450,000 | Jun 19, 2026 |
| 80304 | Residential | — | $450,000 | Jun 19, 2026 |
| 80302 | Residential | — | $85,332 | Jun 19, 2026 |
| 80304 | Residential | — | $74,077 | Jun 18, 2026 |
| 80305 | Residential | — | $7,926 | Jun 18, 2026 |
| 80305 | Residential | — | $6,000 | Jun 18, 2026 |
| 80301 | Residential | — | $12,011 | Jun 18, 2026 |
| 80302 | Residential | — | $1,150 | Jun 18, 2026 |
| 80304 | Residential | — | $15,000 | Jun 17, 2026 |
| 80305 | Residential | — | $10,113 | Jun 17, 2026 |
| 80304 | Residential | — | $670,000 | Jun 17, 2026 |
| 80303 | Commercial | — | $11,000 | Jun 17, 2026 |
| 80301 | Commercial | — | $578,500 | Jun 17, 2026 |
| 80302 | Commercial | — | $83,000 | Jun 17, 2026 |
| 80301 | Residential | — | $20,000 | Jun 17, 2026 |
Top ZIP codes by recent activity
ADU types in the recent set
Housing law — Colorado
Colorado's HB24-1152 (2024) requires larger Front Range municipalities to allow at least one accessory dwelling unit, by administrative approval, wherever single-family homes are permitted — generally from June 30, 2025.
HB24-1313 (2024) requires qualifying transit-oriented communities to plan for greater housing density near rail and frequent-bus corridors, rather than imposing a statewide duplex mandate.
Data source
Sourced from City of Boulder open data (ArcGIS). CC0 — public domain (commercial use permitted).
Nearby cities — Colorado
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Informational only, not legal advice. Headline counts reflect all permits Igni has tracked for this jurisdiction; the table shows recent activity. Housing law changes — verify current statutes before relying on this.