4.8 Rating • Licensed & Insured
Backyard Apartment Construction
Serving MetroWest MA
Planning a backyard apartment or ADU? Ferrimy Construction helps MetroWest homeowners think through layout, site conditions, utilities, access, cost, materials, and construction details before the work begins. Whether you are exploring an in-law suite, garage conversion, or detached living space, we can help you start with a practical local quote.
25+
Years in Business
4.8★
Customer Rating
1,200+
500+
85+
125+
Not sure whether your property is better suited for a garage conversion, in-law suite, addition, or detached backyard apartment? We can help you compare options before you commit.
Licensed Contractor
Serving MetroWest MA: Medfield, Millis, Needham, Newton, Wellesley, Walpole & surrounding areas
Build More Living Space Without Moving
A backyard apartment can create space for family, guests, aging parents, adult children, rental income, or a private work-from-home setup. Ferrimy Construction helps you think through the best approach for your property, whether that means a detached ADU, garage conversion, small addition, or renovated existing space.
What We Handle
ADU Planning & Layout
Plan a backyard apartment layout that fits your property, intended use, privacy needs, and long-term goals.
Detached Backyard Apartments
Build a separate living space that can serve as an in-law suite, guest house, rental unit, or flexible family space.
Garage Apartment Conversions
Convert an existing garage into usable living space with updated framing, insulation, windows, doors, drywall, and finishes.
In-Law Suite Construction
Create comfortable living space for parents, extended family, adult children, caregivers, or long-term guests.
Kitchenette & Bathroom Buildouts
Coordinate the construction details needed for compact kitchens, bathrooms, laundry areas, and everyday living spaces.
Exterior Shell Construction
Build the exterior structure with framing, roofing, siding, windows, doors, and weather-resistant materials.
Interior Framing & Drywall
Complete the interior structure with framing, drywall installation, wall finishing, and room separation.
Trim, Paint & Finish Work
Finish the space with trim carpentry, interior painting, doors, hardware, and final details that make the apartment feel complete.
Not Sure What Backyard Apartment Option Fits?
You do not need a finalized ADU or backyard apartment design to start. Tell us how you want to use the space, what your property allows, and what budget range you are exploring. We can help you compare garage conversion, in-law suite, addition, and detached unit options.
Backyard Apartment and ADU Projects
See examples of how homeowners are creating flexible living space with additions, conversions, exterior upgrades, and finished interior renovations.
