jurisdiction guide · delaware

Dover Building Permit Timelines & Delays

Inside the city, residential building permits in Dover are issued by the City of Dover Department of Planning, Inspections & Community Development; properties in unincorporated Kent County go through Kent County Levy Court instead. Because Delaware has no statewide building code, Dover adopts and enforces its own, currently the 2018 I-Codes via Chapter 22 of its ordinances.

Last reviewed June 12, 2026
headline figure
15 d stated review target; the city reports volume (81 new-home permits in 2023), not turnaround
what to know
Dover posts a 15-business-day review target and reports volume rather than turnaround. It enforces its own 2018 I-Codes, with Historic District and St. Jones River floodplain review as the added layers.
data source
City of Dover Planning & Inspections and 2023 Annual Report
by the numbers

Dover permitting, the figures

The key published figures for this jurisdiction — each cited to its official source.

Up to 15 business days
Stated review target
Dover's posted target for reviewing a permit application (not a measured outcome)
Source: City of Dover Planning & Inspections and 2023 Annual ReportCity of Dover residential permits brochure
817
Permits processed (2023)
Planning Office; across 1,914 permit applications of all types
Source: City of Dover Planning & Inspections and 2023 Annual ReportCity of Dover 2023 Annual Report
81
New-home permits (2023)
Down from 116 in 2022; 4,108 building inspections
Source: City of Dover Planning & Inspections and 2023 Annual ReportCity of Dover 2023 Annual Report
2018 I-Codes
Code edition
Adopted via Chapter 22; Kent County uses the 2018 IRC/IBC for unincorporated areas
Source: City of Dover Planning & Inspections and 2023 Annual ReportCity of Dover Ch. 22
Architectural Review Certificate
Historic District
Of 51 permits in the Historic District in 2023, 42 needed an ARC for exterior work
Source: City of Dover Planning & Inspections and 2023 Annual ReportCity of Dover 2023 Annual Report
St. Jones River (NFIP)
Floodplain
Dover runs an NFIP floodplain-management program along the St. Jones River
Source: City of Dover Planning & Inspections and 2023 Annual ReportCity of Dover floodplain program
analysis

What the data shows

  • Inside the city, residential permits run through the City of Dover Department of Planning, Inspections & Community Development, while unincorporated Kent County is handled separately by the county; Dover enforces the 2018 I-Codes via Chapter 22 of its ordinances (City of Dover; Kent County).

  • Dover posts a stated review target of up to 15 business days for a permit application, but it does not publish a measured turnaround, so the 15 days is a goal rather than a reported outcome (City of Dover residential permits brochure).

  • What the city does publish is volume: in 2023 its Planning Office processed 817 permits across 1,914 applications, issued 81 new-home building permits (down from 116 in 2022), and conducted 4,108 building inspections (City of Dover 2023 Annual Report).

  • Historic review is a real gate downtown: of 51 permits in the Historic District (the Dover Green area) in 2023, 42 required an Architectural Review Certificate for exterior work, decided by the Historic District Commission (City of Dover 2023 Annual Report).

  • The St. Jones River floodplain adds another layer through Dover's NFIP floodplain-management program, and the department closed 2023 short-staffed (19 of 22 positions filled), which can affect timelines (City of Dover).

how permittable helps in dover

Most delay accumulates before technical review

The data points to the same lever everywhere: most delay accumulates before technical review, in completeness and resubmittal cycles. Permittable's Permit Review Diagnostic checks your plans against applicable codes and common reviewer issues before you submit — so your package is more likely to clear on the first pass.

frequently asked

Dover permitting: FAQ

How long does a building permit take in Dover, DE?

Dover posts a target of up to 15 business days to review a permit application, but it does not publish a measured turnaround, so treat the 15 days as a goal rather than a reported outcome (City of Dover residential permits brochure). The city reports volume instead: 817 permits processed and 81 new-home permits in 2023.

Who issues building permits in Dover?

It depends on location. Inside the city limits, the City of Dover Department of Planning, Inspections & Community Development issues residential permits; properties in unincorporated Kent County go through Kent County Levy Court instead. Dover enforces the 2018 I-Codes adopted through Chapter 22 of its ordinances (City of Dover).

Does Delaware have a statewide building code that covers Dover?

No. Delaware has no statewide building code; codes are set at the county and municipal level, so Dover adopts and enforces its own (the 2018 I-Codes). The statewide piece is the energy code, adopted by DNREC. See the Delaware state guide for the broader framework.

What adds time to a Dover permit?

Two overlays in particular. Exterior work in the Historic District (around the Dover Green) needs an Architectural Review Certificate from the Historic District Commission, which met six times in 2023, and development near the St. Jones River triggers floodplain review under the city's NFIP program. Kent Conservation District and DelDOT entrance permits can apply too (City of Dover 2023 Annual Report).

Sources

All figures on this page are drawn from City of Dover Planning & Inspections and 2023 Annual ReportCity of Dover, Department of Planning, Inspections & Community Development. Dover issues residential permits inside the city (Kent County handles unincorporated areas), enforcing the 2018 I-Codes via Chapter 22 of its ordinances. The city posts a stated review target of up to 15 business days and reports volume (817 permits processed, 81 new-home permits in 2023) but no measured turnaround. The Historic District (the Dover Green) requires an Architectural Review Certificate for exterior work, and the St. Jones River floodplain adds review. www.cityofdover.gov/planning-and-inspections. Specific tables, reports, and pages are cited inline with each figure above.

Dover publishes no measured plan-review or permit turnaround; the 15-business-day figure is a stated target on a homeowner brochure, not an audited outcome, and actual times vary with complexity, historic review, and staffing. The figures that are measured are volume counts (817 permits, 81 new-home permits in 2023), not days-to-decision. The 2018 I-Code edition is confirmed via an adopting ordinance; confirm the current edition against the live Dover code. Add-on reviews (Historic District, floodplain, Kent Conservation District, DelDOT) can extend timelines beyond the city building permit.