Portland building & ADU permits
Recent permit activity, updated continuously.
Portland is Oregon's largest city and a national zoning-reform pioneer: Oregon's HB 2001 ended single-family-only zoning statewide, and ADUs are allowed by right within urban growth boundaries. Portland's permit layer carries no ZIP field, so Igni reverse-geocodes each permit's location to a ZIP using the free US Census geocoder before classifying it.
Igni is tracking 491 residential and building permits in Portland, OR — including 63 classified accessory-dwelling-unit (ADU) filings. The most active ZIP is 97206. The most recent filing Igni tracked was Oct 1, 2026. All records come from PortlandMaps ArcGIS open data (BDS), an official government open-data feed, and are refreshed continuously.
491
Permits tracked
63
ADU permits
21
Distinct ZIP codes
Oct 1, 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 |
|---|---|---|---|---|
| 97230 | Residential | — | $244,944 | Oct 29, 2025 |
| 97230 | Residential | — | $242,915 | Oct 29, 2025 |
| 97220 | Residential | Unknown | $46,854 | Jun 23, 2026 |
| 97206 | Residential | Unknown | $34,883 | Jun 16, 2026 |
| 97227 | Residential | — | $146,772 | Nov 26, 2025 |
| 97227 | Residential | — | $146,772 | Nov 26, 2025 |
| 97227 | Residential | — | $146,772 | Nov 26, 2025 |
| 97227 | Residential | — | $146,772 | Nov 26, 2025 |
| 97227 | Residential | — | $146,772 | Nov 26, 2025 |
| 97227 | Residential | — | $146,772 | Nov 26, 2025 |
| 97227 | Residential | — | $146,772 | Nov 26, 2025 |
| 97227 | Residential | — | $146,772 | Nov 26, 2025 |
| 97227 | Residential | — | $146,772 | Nov 26, 2025 |
| 97227 | Residential | — | $146,772 | Nov 26, 2025 |
| 97227 | Residential | — | $146,772 | Nov 26, 2025 |
| 97227 | Residential | — | $146,772 | Nov 26, 2025 |
| 97206 | Residential | — | $177,974 | Feb 18, 2026 |
| 97206 | Residential | — | $163,678 | Mar 21, 2025 |
| 97206 | Residential | — | $166,163 | Mar 21, 2025 |
| 97206 | Residential | — | $166,163 | Mar 21, 2025 |
Top ZIP codes by recent activity
ADU types in the recent set
Permit activity in Portland
Igni counted 874 permits issued in Portland over the last 12 months (Oct 2025 – Sep 2026). The forecast expects about 468 over the next 6 months.
The source's volume stepped up around May 2012 (×1.5) — likely a change in what the city publishes, so we don't compare year over year across it.
Forecast: trailing mean, typical error ±21% in backtests one to six months ahead. How we forecast
| Permit type | Last 12 months | Year over year | Forecast, next 6 months |
|---|---|---|---|
| All permits | 874 | —* | ≈ 468 |
| Residential building | 872 | —* | ≈ 468 |
| Commercial building | 1 | —* | — |
| Trade (electrical, plumbing, mechanical) | 0 | —* | — |
| ADU | 100 | —* | — |
* 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 |
|---|---|---|
| Oct 2023 | 83 | — |
| Nov 2023 | 82 | — |
| Dec 2023 | 66 | — |
| Jan 2024 | 91 | — |
| Feb 2024 | 65 | — |
| Mar 2024 | 95 | — |
| Apr 2024 | 97 | — |
| May 2024 | 109 | — |
| Jun 2024 | 76 | — |
| Jul 2024 | 101 | — |
| Aug 2024 | 87 | — |
| Sep 2024 | 75 | — |
| Oct 2024 | 130 | — |
| Nov 2024 | 62 | — |
| Dec 2024 | 65 | — |
| Jan 2025 | 69 | — |
| Feb 2025 | 106 | — |
| Mar 2025 | 66 | — |
| Apr 2025 | 101 | — |
| May 2025 | 65 | — |
| Jun 2025 | 70 | — |
| Jul 2025 | 65 | — |
| Aug 2025 | 69 | — |
| Sep 2025 | 69 | — |
| Oct 2025 | 84 | — |
| Nov 2025 | 39 | — |
| Dec 2025 | 72 | — |
| Jan 2026 | 90 | — |
| Feb 2026 | 84 | — |
| Mar 2026 | 123 | — |
| Apr 2026 | 53 | — |
| May 2026 | 58 | — |
| Jun 2026 | 90 | — |
| Jul 2026 | 74 | — |
| Aug 2026 | 14 | — |
| Sep 2026 | 93 | — |
| Oct 2026 (forecast) | ≈ 78 | 45–114 |
| Nov 2026 (forecast) | ≈ 78 | 54–115 |
| Dec 2026 (forecast) | ≈ 78 | 57–125 |
| Jan 2027 (forecast) | ≈ 78 | 57–129 |
| Feb 2027 (forecast) | ≈ 78 | 57–126 |
| Mar 2027 (forecast) | ≈ 78 | 56–125 |
Counts are permits issued per calendar month as Portland 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 Portland?
Based on 1,749 Portland permits applied for between Nov 2023 and Aug 2026, the typical (median) permit was issued 202 days after application, and the middle half of permits took 138–313 days. One in ten took longer than 468 days.
| Permit type | Median | Typical range | Permits |
|---|---|---|---|
| All permits | 202 days | 138–313 days | 1,749 |
| Residential building | 202 days | 138–309 days | 1,741 |
| ADU | 113 days | 82–165 days | 255 |
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 — Oregon
Oregon allows accessory dwelling units by-right in single-family zones within urban growth boundaries, with no owner-occupancy requirement and no extra off-street parking mandate.
HB 2001 (2019) legalized middle housing statewide — duplexes in mid-size cities and up to fourplexes, cottage clusters and townhouses in large cities and the Portland metro.
Portland ADU rules
Portland allows accessory dwelling units in its single-dwelling zones by right, meaning a proposal that meets the objective standards in Title 33, Chapter 33.205 of the City Code is approved through the building permit without a discretionary hearing. A lot with a house can generally have one ADU, or two where the lot has city-street frontage and meets the minimum lot size; ADUs may be interior conversions, attached additions, garage conversions, or new detached structures.
Oregon state law (ORS 197A.425) bars cities from imposing owner-occupancy or extra off-street-parking requirements on ADUs, so Portland requires neither. An ADU is generally limited to 75 percent of the main building's living area or 800 square feet, whichever is smaller, with basement conversions exempt from that size cap; detached units are typically held to about 20 feet in height (lower when placed inside required setbacks).
Portland's modern ADU rules grew out of its Residential Infill Project, which took effect in 2021 and also allows up to four units (or more with affordable housing) on many residential lots. The city's long-standing system-development-charge waiver for ADUs remains in effect, lowering one of the larger soft costs of building one.
This is an informational summary — verify current rules with the city's planning/permitting department; not legal advice.
See also: Oregon ADU law and what is an ADU?
Data source
Sourced from PortlandMaps ArcGIS open data (BDS). Public records (Oregon PRL); ZIP via US Census geocode.
Nearby cities — Oregon
Learn more about ADUs & building permits
Background reading on accessory dwelling units, building permits, and how Igni turns Portland permit records into leads.
Portland permit data — FAQ
Where does Igni get Portland permit data?
How fresh is Portland permit data?
How long does it take to get a building permit in Portland?
Does Portland allow accessory dwelling units (ADUs)?
Get permit leads — Portland
Fresh, filterable residential and ADU permit leads from Portland — 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.