Expert ADU & In-Law Apartment Design & Build Services in Central MA Worcester & MetroWest MA
Built for the Way You Really Live — Designed by CORE Remodeling Services
At CORE Remodeling Services, Inc. we help homeowners across Central MA transform their properties with Accessory Dwelling Units (ADUs) and in-law apartments. Whether you’re looking to create independent living space for family, generate rental income, or add long-term value to your home, our design-build team guides you from concept to completion. From zoning and permits to custom design and construction, we make building an ADU seamless and stress-free.
🔴 ADU & In-Law Apartment Designs, Created Just for You
Complete ADU Transformations
From unfinished garages and underutilized attics to fully detached additions, we design and build Accessory Dwelling Units that blend seamlessly with your home while providing functional, independent living space.Custom Layouts & Finishes
Whether you need a rental-ready apartment, a private suite for family, or a flexible home office, our team tailors every layout and finish to your needs, style, and budget.Comfort & Accessibility Upgrades
ADUs are ideal for aging-in-place or multigenerational living. We design safe, code-compliant spaces with accessibility in mind, including first-floor living, wide doorways, and step-free entries.Energy-Efficient & Durable Construction
From insulation and windows to HVAC systems and sustainable materials, we ensure your ADU is efficient, comfortable, and built to last.
Smart Value & Lifestyle Solutions
An ADU doesn’t just add square footage—it adds possibilities. Earn supplemental rental income, create a private retreat for loved ones, or increase resale value with a thoughtfully designed unit.
Did you know?
Massachusetts homeowners filed more than 800 ADU applications in just six months of 2025, following the Affordable Homes Act that legalized ADUs statewide. With approvals already rolling in—including 24 in Worcester—now is the perfect time to explore adding an ADU to your property.
👉 With new by-right rules in place, now is the best time to explore an ADU. CORE Remodeling handles the zoning checks, permits, and construction — so you can move forward with confidence.
“We used Core Remodeling to renovate a bathroom to be fully wheelchair compliant. We could not be more pleased with the result, and I strongly recommend working with Core Remodeling. Hire them. Period.
If you’re lucky enough to get the onsite team we had—with Heather, Brett, Dane, and Payton—I promise you won’t be disappointed. These folks are professional, true experts, true craftsmen, extremely collaborative, efficient, respectful, and they are incredibly kind.
They went above and beyond for our family again and again to complete this project ahead of schedule because they knew it was for my mother who is battling against time with ALS. I’d work with them again on another project in a heartbeat.
Not only is the result of the bathroom—a zero entry shower, double vanity with one at wheelchair height, etc.—super functional for us now, it looks like a five-star hotel. It’s gorgeous!
To each member of the team who worked on my mom’s bathroom, I say thank you from the bottom of my heart. You have made an incredibly large impact on her quality of life and safety.”
🔴 Why Homeowners Choose CORE
You’re covered from the start: Our 5-Year Transferable Warranty protects both workmanship and materials—giving you peace of mind from day one.
You’ll always know what’s next: Our clear communication and organized process keeps you informed and stress-free throughout the project.
Design that’s truly yours: With our in-house designer, you’ll get professional support selecting layouts, materials, and finishes that suit your style and budget.
We don’t disappear after the job’s done: You’ll hear from us at 6 months, 1 year, and every year up to 4 years—we’re in it for the long haul.
You’re working with a proven team: As a Remodelers Advantage member, we stay on the cutting edge of remodeling practices to bring you the best.
Planning made simple: Our CORE Proven Process guides your project from concept to completion-clearly, professionally, and on time.
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Homeowners always want a ballpark. Costs vary based on whether it’s a garage conversion, basement buildout, or detached unit. In Central MA, typical ADUs range $90,000–$250,000+, depending on size, finishes, and whether plumbing/kitchen/bath are included.
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Yes. Even though ADUs are now by-right statewide (except Boston, which has its own ordinance), you still need a building permit. Each town enforces inspections for safety, code compliance, and utilities. CORE handles all permitting and coordination for you.
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Most ADUs take 6-8 months, depending on complexity. Garage or basement conversions are on the shorter end, while detached new builds with kitchens and baths take longer. The design and permitting process adds additional time upfront.
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Yes. Many homeowners use ADUs as rental units for supplemental income. Local rules may limit short-term rentals (Airbnb/VRBO), but long-term rentals are generally allowed. ADUs can provide a stable monthly income stream.
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Yes. National studies show ADUs often return 70–100% of their cost in added property value. They appeal to buyers looking for multigenerational living or income-producing property.
Ready to unlock new possibilities for your home? From concept to completion, CORE Remodeling Services, Inc. designs and builds Accessory Dwelling Units (ADUs) and in-law apartments that add value, flexibility, and independence. Whether you’re creating space for family, planning a rental unit, or preparing for aging-in-place, we deliver lasting craftsmanship with a proven process that makes building your ADU simple and stress-free.
🔴 Schedule Your FREE Consultation
Let’s bring your dream bathroom to life — designed around how you relax, refresh, and recharge.
