ADU Rules in Chicopee, MA
Chicopee follows the Massachusetts state baseline with local regulations.
State Baseline Only
This page uses Massachusetts state baseline rules. Local setbacks, height limits, and other dimensional standards may vary. Contact your local building department for specifics.
State Baseline: Affordable Homes Act
Up to 900 sq ft or 50% of principal dwelling (whichever is smaller). By-right approval statewide.
Zoning Districts
RES — Default Residential
Default residential zone (state baseline only — specific district not yet researched)
| Type | Approval | Max Size | Height | Parking | Owner Occ. |
|---|---|---|---|---|---|
| Detached ADU | By Right | 900 sq ft | — | 1 space | No |
| Attached ADU | By Right | 900 sq ft | — | 1 space | No |
| Interior Conversion | By Right | 900 sq ft | — | None | No |
Building Department
Explore ADU Topics in Chicopee
ADU Zoning in Chicopee, MA
ADU Permit Process in Chicopee, MA
ADU Costs in Chicopee, MA
ADU Size Limits in Chicopee, MA
ADU Setback Requirements in Chicopee, MA
ADU Parking Requirements in Chicopee, MA
ADU Types Explained in Chicopee, MA
ADU Financing in Chicopee, MA
ADU Timeline in Chicopee, MA
ADU Property Value Impact in Chicopee, MA
ADU Rental Income in Chicopee, MA
Frequently Asked Questions
Are ADUs allowed by right in Chicopee, MA?
Yes. ADUs in Chicopee are approved by right — you submit your plans to the building department and receive a building permit without a public hearing or special permit process. This is guaranteed by the Affordable Homes Act.
What types of ADUs can I build in Chicopee?
Chicopee allows detached, attached, conversion ADUs. With up to 900 sq ft allowed, a detached ADU gives you the most flexibility for a full living space.
Do I need to live on the property to build an ADU in Chicopee?
No. Chicopee does not require owner occupancy — this is a right guaranteed by the Affordable Homes Act. You can rent both your main home and the ADU, making this a pure investment property if you choose.
How big can I build an ADU in Chicopee, MA?
In Chicopee, you can build an ADU up to 900 square feet or 50% of your home's living area, whichever is larger. With 900 sq ft, you have enough room for a full 2-bedroom cottage with a kitchen, bathroom, and living area. This is guaranteed by the Affordable Homes Act.
Does Chicopee have historic district rules for ADUs?
Yes. Chicopee has historically significant areas including Chicopee, Chicopee City Mayor's Office, Chicopee Public Library, Forest Park Heights Historic District, Main Street Historic District. If your property is in or near a historic district, your ADU design may require review by the local historical commission for architectural compatibility. This can affect timelines and design choices.
Can I rent out my ADU in Chicopee?
Yes, long-term rentals are allowed for ADUs in Chicopee. However, short-term rentals (like Airbnb) are not currently allowed for ADUs. With a population of 55,560, Chicopee has strong rental demand.
How accurate is the ADU data for Chicopee?
The information on this page reflects Massachusetts state baseline rules under the Affordable Homes Act. Chicopee may have additional local requirements that differ from the state baseline. We recommend confirming with your local building department before starting your project.