Core Remodeling Services: ADU and In-Law Suite Specialists in Central Massachusetts
Core Remodeling Services, Inc. has been helping homeowners across Central Massachusetts create Accessory Dwelling Units (ADUs) and in-law apartments since 2012. As an experienced ADU contractor and in-law suite builder, they guide clients through the entire process — from zoning checks and permits to custom design and construction — providing a structured, design-build approach to secondary living spaces.
Whether the goal is to house extended family, generate long-term rental income, or prepare a property for aging-in-place, Core Remodeling works with homeowners to develop solutions that fit their specific needs, budget, and lifestyle.
What Massachusetts Homeowners Should Know About ADU Regulations
Under the Affordable Homes Act (Chapter 150 of the Acts of 2024), Massachusetts now allows ADUs by right statewide. Here are the key points for homeowners in Central MA:
- Allowed by Right: Every town in Massachusetts must allow at least one ADU on any property zoned for a single-family home.
- Maximum Size: Up to 900 sq. ft. or 50% of the home's square footage, whichever is smaller.
- Attached or Detached: Both options are permitted, subject to local zoning and lot layout.
- Owner-Occupancy: Massachusetts does not require the homeowner to live in either the ADU or the main residence.
- Short-Term Rentals: Many towns restrict ADUs from being used as short-term rentals, though long-term rentals are allowed statewide.
- Parking: Towns cannot impose excessive additional parking requirements; existing driveways often satisfy the requirement.
- Septic & Utilities: Properties on private septic must comply with Title 5, and most towns require a review prior to construction.
- Building Code: ADUs must meet full residential building code, including egress, insulation, HVAC, and accessibility standards.
Even with by-right approval now in place statewide, a building permit is still required. Core Remodeling manages all permitting and coordination on behalf of their clients.
ADU and In-Law Suite Services Offered by Core Remodeling
Core Remodeling handles a range of ADU project types, including garage conversions, basement buildouts, and detached new construction. As both an ADU builder and accessory dwelling unit builder, their team tailors each project to the homeowner's goals and property conditions.
Complete ADU Transformations: From underutilized garages and attic spaces to fully detached additions, Core Remodeling designs and builds units that integrate with the existing home while providing functional, independent living space.
Custom Layouts and Finishes: Each project is designed around the client's specific needs — whether that's a rental-ready apartment, a private suite for family members, or a flexible multi-use space. Layouts and finishes are selected with both style and budget in mind, supported by an in-house designer.
Accessibility and Aging-in-Place Design: As a granny flat builder and in-law suite builder with experience in multigenerational living, Core Remodeling incorporates accessibility features such as first-floor living arrangements, wide doorways, and step-free entries where needed.
Energy-Efficient Construction: ADUs built by Core Remodeling are constructed with attention to insulation, windows, HVAC systems, and durable materials to support long-term comfort and efficiency.
Typical Project Costs and Timelines: In Central Massachusetts, ADU projects generally range from $150,000 to $400,000+, depending on size, scope, and included features such as plumbing, kitchens, and bathrooms. Most ADUs take approximately 6 to 8 months to complete, with garage or basement conversions typically on the shorter end and detached new builds taking longer.
ADUs can also offer a meaningful return on investment. Studies indicate that ADUs often return 70–100% of their cost in added property value, and they appeal to buyers seeking multigenerational living arrangements or income-producing properties.
Core Remodeling's process is guided by what they call their CORE Proven Process — a structured approach that takes projects from initial concept through to completion. Their work is backed by a 5-Year Transferable Warranty covering both workmanship and materials, and they maintain ongoing client communication well after project completion.