Allentown building & ADU permits
Recent permit activity, updated continuously.
Allentown is Pennsylvania's third-largest city and the hub of the Lehigh Valley. The city sets its own ADU rules. Igni reads Allentown's building permits from the city's current EnerGov export, whose records carry a site ZIP and a residential or commercial class.
Igni is tracking 576 residential and building permits in Allentown, PA. The most active ZIP is 18102. The most recent filing Igni tracked was Nov 11, 2026. All records come from City of Allentown EnerGov permits (ArcGIS), an official government open-data feed, and are refreshed continuously.
576
Permits tracked
0
ADU permits
5
Distinct ZIP codes
Nov 11, 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 |
|---|---|---|---|---|
| 18103 | Residential | — | — | Nov 3, 2026 |
| 18103 | Residential | — | — | Nov 3, 2026 |
| 18103 | Residential | — | — | Nov 3, 2026 |
| 18103 | Residential | — | — | Nov 3, 2026 |
| 18102 | Residential | — | — | Nov 4, 2026 |
| 18104 | Residential | — | — | Nov 4, 2026 |
| 18102 | Residential | — | — | Nov 4, 2026 |
| 18102 | Residential | — | — | Nov 4, 2026 |
| 18102 | Residential | — | — | Nov 4, 2026 |
| 18102 | Residential | — | — | Nov 4, 2026 |
| 18102 | Residential | — | — | Nov 4, 2026 |
| 18102 | Residential | — | — | Nov 4, 2026 |
| 18103 | Residential | — | — | Nov 4, 2026 |
| 18102 | Residential | — | — | Nov 4, 2026 |
| 18109 | Residential | — | — | Nov 4, 2026 |
| 18103 | Residential | — | — | Nov 5, 2026 |
| 18103 | Residential | — | — | Nov 5, 2026 |
| 18102 | Residential | — | — | Nov 5, 2026 |
| 18103 | Residential | — | — | Nov 5, 2026 |
| 18103 | Residential | — | — | Nov 5, 2026 |
Top ZIP codes by recent activity
Permit activity in Allentown
Igni counted 3,014 permits issued in Allentown over the last 12 months (Nov 2025 – Oct 2026).
Not enough history for a seasonal forecast yet. How we forecast
| Permit type | Last 12 months | Year over year |
|---|---|---|
| All permits | 3,014 | — |
| Residential building | 2,179 | — |
| Commercial building | 835 | — |
| Trade (electrical, plumbing, mechanical) | 0 | — |
| ADU | 0 | — |
Monthly figures
| Month | Permits | 10th–90th percentile |
|---|---|---|
| May 2025 | 179 | — |
| Jun 2025 | 250 | — |
| Jul 2025 | 258 | — |
| Aug 2025 | 258 | — |
| Sep 2025 | 259 | — |
| Oct 2025 | 289 | — |
| Nov 2025 | 213 | — |
| Dec 2025 | 192 | — |
| Jan 2026 | 174 | — |
| Feb 2026 | 249 | — |
| Mar 2026 | 312 | — |
| Apr 2026 | 249 | — |
| May 2026 | 243 | — |
| Jun 2026 | 287 | — |
| Jul 2026 | 306 | — |
| Aug 2026 | 288 | — |
| Sep 2026 | 251 | — |
| Oct 2026 | 250 | — |
Counts are permits issued per calendar month as Allentown 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 Allentown?
Based on 3,972 Allentown permits applied for between Nov 2023 and Aug 2026, the typical (median) permit was issued 6 days after application, and the middle half of permits took 1–21 days. One in ten took longer than 56 days.
| Permit type | Median | Typical range | Permits |
|---|---|---|---|
| All permits | 6 days | 1–21 days | 3,972 |
| Residential building | 4 days | 1–15 days | 2,816 |
| Commercial building | 11 days | 3–38 days | 1,156 |
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 — Pennsylvania
Accessory dwelling units in Pennsylvania are regulated locally; there is no statewide ADU mandate, so rules vary by municipality.
Pennsylvania has no statewide upzoning law; residential density is set by local zoning.
Data source
Sourced from City of Allentown EnerGov permits (ArcGIS). Public records (PA Right-to-Know Law).
Nearby cities — Pennsylvania
Learn more about ADUs & building permits
Background reading on accessory dwelling units, building permits, and how Igni turns Allentown permit records into leads.
Allentown permit data — FAQ
Where does Igni get Allentown permit data?
How fresh is Allentown permit data?
How long does it take to get a building permit in Allentown?
Does Allentown allow accessory dwelling units (ADUs)?
Get permit leads — Allentown
Fresh, filterable residential and ADU permit leads from Allentown — 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.