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ADU Parking Requirements in Quincy, MA

Quincy requires 1 parking space(s) per ADU, with transit exemptions within 0.5 mi.

ADU parking rules in Quincy, Massachusetts. Required parking spaces, transit exemptions, and how to qualify for reduced parking.

Data verified as of March 2, 2026
State Baseline Only — Local Details Not Yet Researched

ADU Regulations in Quincy

Quincy follows the Massachusetts state baseline under the Affordable Homes Act. This means all Massachusetts state-level ADU rights apply — including by-right approval, no owner occupancy requirement, and standardized size limits. Quincy may also have additional local regulations that supplement the state baseline.

Transit Parking Exemption in Quincy

Quincy has transit stations, which means properties within 0.5 miles qualify for a complete parking exemption. This exemption applies to subway, commuter rail, bus rapid transit, light rail, and ferry terminal stations. Use our address checker to see if your property qualifies.

Meeting the Parking Requirement

To meet Quincy's 1-space requirement, you can use existing driveway or garage spaces, create new on-site parking, or (if near transit) qualify for the exemption. Consider how the parking layout affects your ADU's size and placement on the lot.

How the Transit Exemption Works

The transit parking exemption in Quincy is measured as a straight-line distance from your property to the nearest transit station entrance. If you're within 0.5 miles, your ADU has zero parking requirements — this right is guaranteed by the Affordable Homes Act. This can free up significant lot area for the ADU itself.

Important: State Baseline Data

The information on this page reflects Massachusetts state baseline rules. Quincy may have additional local requirements. We recommend confirming with your local building department before starting your project.

Quincy ADU Rules at a Glance

Max Size

900 sq ft

% of Home

50%

Parking

1 space(s)

Approval

BY RIGHT

Owner Occupancy

Not required

Rental Allowed

Yes

Short-Term Rental

Not allowed

Quincy Building Department

Quincy Building & Zoning Department

55 Sea St, Quincy, MA 02169, USA

Phone: (617) 376-1450

Visit Website →

Frequently Asked Questions

Are there parking requirements for ADUs in Quincy?

Quincy normally requires 1 parking space(s) per ADU. However, if your property is within 0.5 miles of a transit station, you're exempt from all parking requirements. Quincy has transit stations — check your specific address to see if you qualify for the exemption.

How do I know if I qualify for a parking exemption in Quincy?

Use our address checker to see if your property is within 0.5 miles of a transit station in Quincy. We calculate the distance from your exact address to the nearest station. If you're within the radius, you have zero parking requirements for your ADU.

Can I use existing driveway parking for my ADU in Quincy?

In most cases, existing driveway or garage spaces can count toward Quincy's parking requirement, as long as the spaces meet dimensional standards (typically 9 ft wide by 18 ft deep). Check with Quincy's building department for specific requirements on parking dimensions and configuration.

Which transit stations qualify for parking exemptions in Quincy?

All transit stations in Quincy qualify for the parking exemption. Properties within 0.5 miles of any station — including subway, commuter rail, bus rapid transit, and ferry terminals — are exempt from ADU parking requirements under the Affordable Homes Act.

Does tandem parking count for ADU requirements in Quincy?

Tandem parking (cars parked one behind another in a driveway) may count toward Quincy's ADU parking requirement, depending on local interpretation. This is a common question — confirm with Quincy's building inspector before relying on tandem spaces.

What happens if I can't provide ADU parking in Quincy?

If your property is near a transit station in Quincy, you may be fully exempt from parking requirements. If you can't meet the parking requirement, options include applying for a variance, exploring shared parking arrangements, or choosing an ADU type (like a conversion) that may have different parking standards.

How accurate is the ADU data for Quincy?

The information on this page reflects Massachusetts state baseline rules under the Affordable Homes Act. Quincy may have additional local requirements that differ from the state baseline. We recommend confirming with your local building department before starting your project.

Where can I find all ADU regulations for Quincy?

Visit our complete ADU rules page for Quincy, MA for a full overview of zoning, permits, size limits, setbacks, parking, and costs. We cover all Massachusetts municipalities with data sourced from local ordinances and state law.

Check Your Address

See exactly what ADU rules apply to your specific property in Quincy.