Charleston building & ADU permits
Recent permit activity, updated continuously.
Charleston is a historic port city on the South Carolina coast, regulating ADUs locally. Its open-data feed is a new-construction permit layer — strongly residential, which suits Igni's ADU and new-build focus — sourced as public records and enriched with ZIP recovery from each permit's location.
Igni is tracking 493 residential and building permits in Charleston, SC. The most active ZIP is 29492. The most recent filing Igni tracked was Oct 22, 2026. All records come from City of Charleston open data (ArcGIS), an official government open-data feed, and are refreshed continuously.
493
Permits tracked
0
ADU permits
7
Distinct ZIP codes
Oct 22, 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 |
|---|---|---|---|---|
| 29412 | Residential | — | $355,665 | Jun 2, 2026 |
| 29492 | Residential | — | $276,045 | May 28, 2026 |
| 29401 | Commercial | — | $0 | Jul 20, 2021 |
| 29407 | Residential | — | $268,477 | Jun 17, 2026 |
| 29492 | Residential | — | $213,389 | Sep 23, 2026 |
| 29492 | Residential | — | $348,758 | Sep 14, 2026 |
| 29492 | Residential | — | $444,644 | Sep 15, 2026 |
| 29407 | Commercial | — | $33,500,000 | Jun 29, 2026 |
| 29403 | Residential | — | $411,517 | Jun 19, 2026 |
| 29492 | Commercial | — | $1,600,000 | Jul 15, 2026 |
| 29492 | Commercial | — | $800,000 | Jul 15, 2026 |
| 29407 | Commercial | — | $35,000,000 | May 13, 2026 |
| 29455 | Commercial | — | $1,050,000 | Jun 18, 2025 |
| 29414 | Residential | — | $212,158 | Sep 14, 2026 |
| 29414 | Residential | — | $212,158 | Sep 14, 2026 |
| 29414 | Residential | — | $215,739 | Sep 14, 2026 |
| 29414 | Residential | — | $215,739 | Sep 14, 2026 |
| 29414 | Residential | — | $215,739 | Sep 14, 2026 |
| 29492 | Residential | — | $386,626 | Sep 17, 2026 |
| 29492 | Residential | — | $287,642 | Sep 17, 2026 |
Top ZIP codes by recent activity
Permit activity in Charleston
Igni counted 444 permits issued in Charleston over the last 12 months (Oct 2025 – Sep 2026).
The source's volume stepped up around June 2025 (×2.1) — 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 | 444 | —* |
| Residential building | 412 | —* |
| Commercial building | 32 | —* |
| Trade (electrical, plumbing, mechanical) | 0 | —* |
| ADU | 1 | —* |
* 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 | 3 | — |
| Nov 2023 | 5 | — |
| Dec 2023 | 30 | — |
| Jan 2024 | 19 | — |
| Feb 2024 | 20 | — |
| Mar 2024 | 44 | — |
| Apr 2024 | 14 | — |
| May 2024 | 24 | — |
| Jun 2024 | 16 | — |
| Jul 2024 | 17 | — |
| Aug 2024 | 23 | — |
| Sep 2024 | 20 | — |
| Oct 2024 | 20 | — |
| Nov 2024 | 10 | — |
| Dec 2024 | 16 | — |
| Jan 2025 | 64 | — |
| Feb 2025 | 29 | — |
| Mar 2025 | 8 | — |
| Apr 2025 | 26 | — |
| May 2025 | 17 | — |
| Jun 2025 | 23 | — |
| Jul 2025 | 42 | — |
| Aug 2025 | 80 | — |
| Sep 2025 | 117 | — |
| Oct 2025 | 46 | — |
| Nov 2025 | 22 | — |
| Dec 2025 | 25 | — |
| Jan 2026 | 34 | — |
| Feb 2026 | 33 | — |
| Mar 2026 | 21 | — |
| Apr 2026 | 52 | — |
| May 2026 | 85 | — |
| Jun 2026 | 30 | — |
| Jul 2026 | 28 | — |
| Aug 2026 | 29 | — |
| Sep 2026 | 39 | — |
Counts are permits issued per calendar month as Charleston 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 Charleston?
Based on 987 Charleston permits applied for between Nov 2023 and Aug 2026, the typical (median) permit was issued 66 days after application, and the middle half of permits took 32–165 days. One in ten took longer than 281 days.
| Permit type | Median | Typical range | Permits |
|---|---|---|---|
| All permits | 66 days | 32–165 days | 987 |
| Residential building | 60 days | 31–151 days | 890 |
| Commercial building | 127 days | 76–249 days | 97 |
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 — South Carolina
Accessory dwelling units in South Carolina are handled locally; with no statewide ADU mandate, requirements vary by city and county.
South Carolina has no statewide upzoning law; residential density is governed by local zoning.
Data source
Sourced from City of Charleston open data (ArcGIS). Public records (City of Charleston).
Learn more about ADUs & building permits
Background reading on accessory dwelling units, building permits, and how Igni turns Charleston permit records into leads.
Charleston permit data — FAQ
Where does Igni get Charleston permit data?
How fresh is Charleston permit data?
How long does it take to get a building permit in Charleston?
Does Charleston allow accessory dwelling units (ADUs)?
Get permit leads — Charleston
Fresh, filterable residential and ADU permit leads from Charleston — 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.