Our ADU Construction Services
- ✓Permitted by right under MA 2024 law
- ✓Attached & detached ADU options
- ✓Basement & garage conversions to ADU
- ✓Full design-build service
- ✓Rental income potential ($1,500–$3,000/mo)
- ✓Increases property value significantly
How It Works
Feasibility Review
We assess your property for ADU potential — setbacks, utilities, access.
Design
Floor plan design optimized for comfort and rental value.
Permitting
We file all required permits — streamlined under the 2024 MA law.
Construction
Full turnkey build with kitchen, bath, and all utilities.
Certificate of Occupancy
We obtain the CO so you can legally rent or occupy immediately.
ADU Construction in Winchester — FAQ
What is the MA 2024 Affordable Homes Act ADU rule?+
The Affordable Homes Act of 2024 allows homeowners to build ADUs up to 900 sq ft as-of-right (without variance or special permit) in single-family zoning districts statewide. This is a massive change that makes ADU construction far easier.
How much does an ADU cost to build in MA?+
ADUs in Massachusetts typically cost $150,000–$350,000+ depending on whether they are attached, detached, or a conversion. Basement/garage conversions are typically more affordable.
Can I rent my ADU?+
Yes! ADUs can be rented as long-term units. In Greater Boston, ADUs typically rent for $1,500–$3,000+/month depending on location and size.
Do I need to notify my insurance company before building an ADU?+
Yes. Adding an ADU changes your home's risk profile. We recommend notifying your insurer before construction begins and consulting a licensed MA insurance agent.
Ready? Let's Transform Your Winchester Home
Get your free, no-obligation adu construction estimate in Winchester today.