Dover, Delaware · city zoning districts · 14 districts

Dover, DE zoning map & districts

As Delaware's capital and the seat of Kent County, Dover's Department of Planning and Community Development administers the Dover Zoning Ordinance for land within city limits, while Kent County zones the surrounding unincorporated area under Title 9 of the Delaware Code — a developer working a Dover-area site needs to confirm which jurisdiction actually covers the parcel before assuming city code applies. The city's Planning Commission handles regulatory and site-plan review, with a separate Board of Adjustment for variances.

The code Dover Zoning Ordinance

Dover zoning map

Dover's Department of Planning and Community Development maintains the zoning map and ordinance text; parcels outside city limits fall under Kent County's zoning code instead, so confirming jurisdiction first is essential.

There is no link to the official map here yet — confirm current district boundaries directly with the Dover planning or zoning department.

A published summary is never the authority. The adopted ordinance and the city's official zoning map govern, and both change — verify the district and every standard on your parcel before you rely on it.

How zoning works in Dover

Dover's development pattern mixes state-government and institutional land (Legislative Hall and the state office complex) with suburban residential growth radiating outward, plus height and use constraints near Dover Air Force Base that apply on top of, not instead of, the base zoning district. Delaware has no statewide ADU mandate or missing-middle preemption, so accessory and multifamily allowances in Dover are set entirely by the city's own code.

Dover zoning districts by family

The 14 district codes below are the ones that decide most projects in Dover, grouped by what they are for rather than by the order the ordinance prints them.

Key districts in the Dover Zoning Ordinance — a curated reference, not the exhaustive list. Confirm against the current adopted code.
Code District What it is for
Residential 6 districts
R-20 Single-Family Residence District Large-lot end of Dover's single-family ladder, minimum 20,000 sq ft lots.
R-10 Single-Family Residence District Mid-density single-family district, one of five graduated R-lot-size tiers.
R-7 Single-Family Residence District Smallest-lot single-family tier in the R-20 through R-7 series.
RG-1 General Residence District Entry-level general residence district allowing a mix of housing types beyond single-family.
RG-4 Multistory Apartments District Higher-density apartment district near the top of Dover's RG residence series.
MH Manufactured Housing District Manufactured/mobile home park development.
Mixed-use 1 district
RG-O General Residence and Office District Transitional district blending residential and office uses.
Commercial 2 districts
C-1 Neighborhood Commercial District Small-scale retail and service uses serving surrounding neighborhoods.
C-4 Highway Commercial District Auto-oriented commercial strip development along arterial corridors.
Downtown / core 1 district
C-2 Central Commercial District Dover's core downtown commercial district.
Industrial 2 districts
M Manufacturing District General manufacturing and industrial uses.
IPM Industrial Park Manufacturing District Campus-style industrial park zoning, part of a broader IPM/IPM2/IPM3 series.
Special purpose 2 districts
H Historic District Overlay protecting Dover's historic building stock and character.
A Agricultural District Low-intensity agricultural and rural holding zone at the city's edges.

Dover zoning — common questions

Is a parcel near Dover, DE governed by city or county zoning?
It depends on whether the parcel sits inside Dover's incorporated limits (city zoning under the Dover Zoning Ordinance) or in unincorporated Kent County (county zoning under Title 9 of the Delaware Code); the two codes differ, so jurisdiction should be confirmed before relying on either district structure.
Are there height restrictions near Dover Air Force Base?
Yes, land near Dover Air Force Base is subject to airport-related height and use restrictions layered on top of the base zoning district; these should be checked in addition to, not instead of, standard Dover zoning requirements.
How do I find the zoning district for a Dover, DE property?
Dover's Department of Planning and Community Development maintains the official zoning map and ordinance text for parcels within city limits; Kent County's planning office handles unincorporated parcels nearby.

Keep reading

← Delaware zoning — who holds the zoning power in Delaware, under which enabling statute, and the reforms that override local rules.

Other Delaware cities

The zoning reference → — every state, plus city-level district guides like this one.

Dover zoning summaries on this page are provided for information, not legal advice. Confirm every project against the current adopted code for the jurisdiction.