Centennial building & ADU permits
Recent permit activity, updated continuously.
Centennial is an Arapahoe County suburb on the southern edge of the Denver metro that incorporated in 2001. Its development-permit records give accessory dwelling units a dedicated permit type, and Colorado's 2024 ADU law (HB24-1152) requires cities in the state's metropolitan planning areas to allow ADUs by right.
Igni is tracking 282 residential and building permits in Centennial, CO — including 3 classified accessory-dwelling-unit (ADU) filings. The most active ZIP is 80112. The most recent filing Igni tracked was Nov 10, 2026. All records come from City of Centennial (Tyler EnerGov / ArcGIS), an official government open-data feed, and are refreshed continuously.
282
Permits tracked
3
ADU permits
6
Distinct ZIP codes
Nov 10, 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 |
|---|---|---|---|---|
| 80112 | Commercial | — | $2,276,000 | Nov 10, 2026 |
| 80016 | Residential | — | $90,000 | Nov 10, 2026 |
| 80112 | Commercial | — | $28,946 | Nov 10, 2026 |
| 80112 | Commercial | — | $80,000 | Nov 9, 2026 |
| 80111 | Commercial | — | $474,000 | Nov 6, 2026 |
| 80112 | Commercial | — | $1,200,000 | Nov 6, 2026 |
| 80122 | Residential | — | $6,328 | Nov 6, 2026 |
| 80112 | Commercial | — | $10,000 | Nov 5, 2026 |
| 80122 | Commercial | — | $160,000 | Nov 4, 2026 |
| 80121 | Residential | — | $192,500 | Nov 4, 2026 |
| 80016 | Commercial | — | $25,650 | Nov 4, 2026 |
| 80112 | Commercial | — | $6,000 | Nov 3, 2026 |
| 80112 | Commercial | — | $22,000 | Nov 3, 2026 |
| 80111 | Commercial | — | $174,000 | Nov 3, 2026 |
| 80122 | Commercial | — | $6,500 | Nov 3, 2026 |
| 80112 | Commercial | — | $368,316 | Oct 30, 2026 |
| 80111 | Residential | — | $5,000 | Oct 29, 2026 |
| 80112 | Commercial | — | $94,768 | Oct 29, 2026 |
| 80016 | Residential | — | $433,417 | Oct 28, 2026 |
| 80016 | Residential | — | $492,213 | Oct 28, 2026 |
Top ZIP codes by recent activity
ADU types in the recent set
Permit activity in Centennial
Igni counted 543 permits issued in Centennial over the last 12 months (Nov 2025 – Oct 2026).
The source's volume stepped up around January 2025 (×1.5) — likely a change in what the city publishes, so we don't compare year over year across it.
Not enough history for a seasonal forecast yet. How we forecast
| Permit type | Last 12 months | Year over year |
|---|---|---|
| All permits | 543 | —* |
| Residential building | 231 | —* |
| Commercial building | 290 | —* |
| Trade (electrical, plumbing, mechanical) | 22 | —* |
| ADU | 3 | —* |
* No year-over-year figure: the source's volume for this permit type stepped up within the last two years — likely a change in what the city publishes — so the two 12-month windows are not comparable.
Monthly figures
| Month | Permits | 10th–90th percentile |
|---|---|---|
| Nov 2023 | 137 | — |
| Dec 2023 | 49 | — |
| Jan 2024 | 24 | — |
| Feb 2024 | 16 | — |
| Mar 2024 | 20 | — |
| Apr 2024 | 34 | — |
| May 2024 | 31 | — |
| Jun 2024 | 26 | — |
| Jul 2024 | 24 | — |
| Aug 2024 | 29 | — |
| Sep 2024 | 31 | — |
| Oct 2024 | 31 | — |
| Nov 2024 | 25 | — |
| Dec 2024 | 42 | — |
| Jan 2025 | 36 | — |
| Feb 2025 | 49 | — |
| Mar 2025 | 68 | — |
| Apr 2025 | 105 | — |
| May 2025 | 28 | — |
| Jun 2025 | 64 | — |
| Jul 2025 | 30 | — |
| Aug 2025 | 45 | — |
| Sep 2025 | 37 | — |
| Oct 2025 | 49 | — |
| Nov 2025 | 32 | — |
| Dec 2025 | 35 | — |
| Jan 2026 | 36 | — |
| Feb 2026 | 27 | — |
| Mar 2026 | 31 | — |
| Apr 2026 | 44 | — |
| May 2026 | 103 | — |
| Jun 2026 | 44 | — |
| Jul 2026 | 72 | — |
| Aug 2026 | 36 | — |
| Sep 2026 | 48 | — |
| Oct 2026 | 35 | — |
Counts are permits issued per calendar month as Centennial publishes them to its open-data feed — not a complete census; a change in what the city publishes moves them too. The current month is left out, and the most recent months are provisional. A forecast is a statistical estimate with a range, not a prediction for any project. Informational only.
How long do permits take in Centennial?
Based on 1,559 Centennial permits applied for between Nov 2023 and Aug 2026, the typical (median) permit was issued 48 days after application, and the middle half of permits took 25–103 days. One in ten took longer than 288 days.
| Permit type | Median | Typical range | Permits |
|---|---|---|---|
| All permits | 48 days | 25–103 days | 1,559 |
| Residential building | 39 days | 23–76 days | 642 |
| Commercial building | 55 days | 28–124 days | 882 |
| Trade (electrical, plumbing, mechanical) | 62 days | 15–64 days | 35 |
Typical, not guaranteed: individual permits vary with project scope, application completeness and plan-review workload. Days are calendar days from application to issuance; applications still pending are counted as not-yet-issued rather than dropped. Informational only, not legal advice. How we calculate approval times.
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 Centennial (Tyler EnerGov / ArcGIS). Public records (CO Open Records Act).
Nearby cities — Colorado
Learn more about ADUs & building permits
Background reading on accessory dwelling units, building permits, and how Igni turns Centennial permit records into leads.
Centennial permit data — FAQ
Where does Igni get Centennial permit data?
How fresh is Centennial permit data?
How long does it take to get a building permit in Centennial?
Does Centennial allow accessory dwelling units (ADUs)?
Get permit leads — Centennial
Fresh, filterable residential and ADU permit leads from Centennial — delivered before your competitors even know.
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.