Wilmington, DE Zoning

Districts

com 6res_mf 4spec 4res_sf 2ind 2

Code	Name	Category	Min lot	Height	Coverage	FAR	Du/ac	Parking	Setbacks F/S/R
R-1	Single-Family Residence 1	res_sf	5,000 sf	35 ft	0.5	0.5	—	2	25 / 25 / 10
R-2	Single-Family Residence 2	res_sf	5,000 sf	35 ft	0.5	0.5	—	2	25 / 25 / 10
R-3	Single-Family Residence 3	res_mf	5,000 sf	35 ft	0.5	0.5	—	2	25 / 25 / 10
R-4	Multi-Family Residence 1	res_mf	5,000 sf	35 ft	0.5	0.5	—	2	25 / 25 / 10
R-5	Multi-Family Residence 2	res_mf	5,000 sf	35 ft	0.5	0.5	—	2	25 / 25 / 10
R-5-C	Multi-Family Residence Compact	res_mf	5,000 sf	35 ft	0.5	0.5	—	2	25 / 25 / 10
C-1	Commercial 1 (Neighborhood)	com	5,000 sf	35 ft	0.5	0.5	—	2	25 / 25 / 10
C-2	Commercial 2 (Local)	com	5,000 sf	35 ft	0.5	0.5	—	2	25 / 25 / 10
C-3	Commercial 3 (General)	com	5,000 sf	35 ft	0.5	0.5	—	2	25 / 25 / 10
C-4	Commercial 4 (Intensive)	com	5,000 sf	35 ft	0.5	0.5	—	2	25 / 25 / 10
C-5	Commercial 5 (Central Business District)	com	5,000 sf	35 ft	0.5	0.5	—	2	25 / 25 / 10
C-6	Commercial 6 (Downtown Core)	com	5,000 sf	35 ft	0.5	0.5	—	2	25 / 25 / 10
M-1	Manufacturing 1	ind	5,000 sf	35 ft	0.5	0.5	—	2	25 / 25 / 10
M-2	Manufacturing 2	ind	5,000 sf	35 ft	0.5	0.5	—	2	25 / 25 / 10
W-1	Waterfront 1	spec	5,000 sf	35 ft	0.5	0.5	—	2	25 / 25 / 10
W-2	Waterfront 2	spec	5,000 sf	35 ft	0.5	0.5	—	2	25 / 25 / 10
W-3	Waterfront 3	spec	5,000 sf	35 ft	0.5	0.5	—	2	25 / 25 / 10
W-4	Waterfront 4	spec	5,000 sf	35 ft	0.5	0.5	—	2	25 / 25 / 10

Confidence: confirmed partial under review not found

Overlays

CHD

City Historic

HP

Applies to: Residential, Commercial, Office, Mixed-Use

coverage adjustment (%)	-10
density multiplier	-0.2
lot size multiplier	0.15

NCD

Neighborhood Conservation

CON

Applies to: Residential, Commercial, Office, Mixed-Use

coverage adjustment (%)	-10
density multiplier	-0.2
lot size multiplier	0.15

FP

Floodplain

FP

Applies to: Residential, Commercial, Mixed-Use, Office

coverage adjustment (%)	-10
setback addition (ft)	15

ENVIRO-or-ENV

Environmental/Resource Protection

HS

Applies to: Residential, Commercial, Mixed-Use, Office

coverage adjustment (%)	-10
setback addition (ft)	15

Adopted building codes

Not statewide

Local adoption

2018

2020

Local

IECC (Residential)

2018

IECC (Commercial)

ASHRAE 90.1-2016

Click a code label to open its state-by-state adoption atlas.

Formulas

Definitions

height: Grade to highest point of structure.
lot_coverage: Building footprint / lot area.
far: Gross floor area / lot area.
du_ac: Dwelling units per gross acre.
setback_front: Front property line to nearest building face.
setback_side: Side property line to nearest building face.
setback_rear: Rear property line to nearest building face.
parking: Spaces per dwelling unit unless noted.

Capacity calculations

max_footprint_sf: lot_area_sf * lot_coverage
max_gfa_sf: lot_area_sf * far
buildable_width_ft: lot_width_ft - setback_side_ft * 2
buildable_depth_ft: lot_depth_ft - setback_front_ft - setback_rear_ft
max_stories_approx: max_height_ft / 10

Massing explorer

Interactive 3D comparison across every district. Drag to orbit, scroll to zoom, use the slider to walk districts, and toggle applicable overlays in the right-side panel.

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Max height

— ft

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Floor area ratio

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Lot coverage

—%

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Setbacks (F / S / R)

— ft

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Parking

— /unit

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Max density

— du/ac

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Min lot size

— sf

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District	Category	Height	FAR	Coverage	Setbacks	Parking	Density	Min lot	Overlays

Research status

Data quality

2%completeness1 confirmed54 partial4 inferred

Documented gaps

Quirks not populated — requires markdown source review

Known issues

schema:v1-legacypriority:lowdata:gaps-present

Related pages

Every city in the corpus is connected to the broader wiki. Use these links to cross-check applicable laws, codes, and concepts.