Danbury Zoning & Land Use Guide
Key Zoning Facts
Danbury Zoning Overview
Danbury is a city in Fairfield County, Connecticut with a population of approximately 86,500 (2020 Census). The city manages land use through its zoning regulations, administered by the Planning & Zoning Department.
Danbury uses a detailed zoning system with lot-size-based residential zones, multi-family zones, multiple commercial district types, and industrial zones. The city also has a Downtown Transit Oriented Development (D-TOD) district.
Key Zoning Districts
Residential Districts
- RA-80 — Single-family residential (80,000 sq ft minimum lot)
- RA-40 — Single-family residential (40,000 sq ft minimum lot)
- RA-20 — Single-family residential (20,000 sq ft minimum lot)
- RA-8 — Single-family residential (8,000 sq ft minimum lot)
- RMF-10 / RMF-6 / RMF-4 — Multi-family residential
- R-3 — Three-family residential
- RH-3 — High-rise residential
- RR-10 — Waterfront residential-recreational
- R-O — Residential-office
- PND — Planned Neighborhood Development
Commercial Districts
- CG-20 — General Commercial
- CA-80 — Arterial Commercial
- CL-10 — Light Commercial
- CN-5 / CN-20 — Neighborhood Commercial
- LCI-40 — Limited Roadside Commercial Industrial
- D-TOD — Downtown Transit Oriented Development
- CRP — Campus Research Park
- MURM — Mixed-Use Regional Mall
Industrial Districts
- IL-40 — Light Industrial (40,000 sq ft minimum lot)
- IG-80 — General Industrial (80,000 sq ft minimum lot)
Accessory Dwelling Units (ADUs)
Under Connecticut PA 21-29, Danbury is required to allow accessory dwelling units. Contact Planning & Zoning at (203) 797-4525 for specific local ADU regulations.
Development Process
- Zoning Verification — Check your property's zoning using the interactive GIS map or contact Planning & Zoning at (203) 797-4525
- Application Submission — Submit required applications to the Planning & Zoning Commission
- Public Hearing — Required for special permits, variances, and zone changes
- Building Permit — Obtain from the Building Department
- Inspections — Schedule required inspections during construction
Key Considerations
- Danbury has a Downtown Transit Oriented Development (D-TOD) district encouraging mixed-use development near transit
- The Campus Research Park (CRP) zone accommodates corporate and research uses
- Review the full zoning regulations for specific dimensional standards
- Verify flood zone status using FEMA's Flood Map Service
Disclaimer: This guide provides general information about zoning in Danbury and should not be relied upon as legal advice. Zoning codes are subject to change. Always verify current regulations with the Danbury Planning & Zoning Department at (203) 797-4525 before making development decisions.
Regulatory Layers That Apply in Danbury
Your property is subject to ALL of these regulatory layers. Each one can impose additional requirements beyond the others.
Federal
- FEMA Flood Zones: Applicable
- View FEMA Flood Map
State — Connecticut
- Building Code: 2022 Connecticut State Building Code (based on 2021 IBC as amended)
- State ADU Override: Yes (Connecticut PA 21-29)
County — Fairfield County
- Role: County-level geographic reference; Connecticut has no county government.
City / Municipal
The city's zoning ordinance, building codes, and local permits form the primary layer of land-use regulation for your property.
Overlay Districts
No overlay districts identified.
Private Restrictions
- HOA / CC&Rs common: Yes
- Check HOA CC&Rs and deed restrictions for additional requirements.
Primary Zoning Districts
- Min Lot
- 80,000 sq ft
- Max Height
- 35 ft
- Front Setback
- Varies
- Side Setback
- Varies
- Rear Setback
- Varies
- Min Lot
- 40,000 sq ft
- Max Height
- 35 ft
- Front Setback
- Varies
- Side Setback
- Varies
- Rear Setback
- Varies
- Min Lot
- 20,000 sq ft
- Max Height
- 35 ft
- Front Setback
- Varies
- Side Setback
- Varies
- Rear Setback
- Varies
- Min Lot
- 8,000 sq ft
- Max Height
- 35 ft
- Front Setback
- Varies
- Side Setback
- Varies
- Rear Setback
- Varies
- Min Lot
- Varies
- Max Height
- Varies
- Front Setback
- Varies
- Side Setback
- Varies
- Rear Setback
- Varies
- Min Lot
- 20,000 sq ft
- Max Height
- Varies
- Front Setback
- Varies
- Side Setback
- Varies
- Rear Setback
- Varies
- Min Lot
- 80,000 sq ft
- Max Height
- Varies
- Front Setback
- Varies
- Side Setback
- Varies
- Rear Setback
- Varies
- Min Lot
- Varies
- Max Height
- Varies
- Front Setback
- Varies
- Side Setback
- Varies
- Rear Setback
- Varies
- Min Lot
- 40,000 sq ft
- Max Height
- Varies
- Front Setback
- Varies
- Side Setback
- Varies
- Rear Setback
- Varies
- Min Lot
- 80,000 sq ft
- Max Height
- Varies
- Front Setback
- Varies
- Side Setback
- Varies
- Rear Setback
- Varies
ADU Rules in Danbury
Permit Costs & Timelines
Permit Costs & Timelines
Specific permit fee schedules for Danbury are available from the local planning department. Fees vary based on project type, scope, and valuation.
Check Danbury permit fees →