Home Addition Contractor in Southborough, MA
Trusted Home Addition Contractor in Southborough, MA
Looking to expand your home in Southborough, MA? Regulus Construction is the trusted local home addition contractor serving Southborough and the surrounding MetroWest communities. Whether you need a first-floor primary suite, a larger kitchen for family gatherings, or a second story for your growing family, our design-build team delivers seamless additions that feel like they were always part of your home.
Why Southborough Homeowners Choose Regulus Construction
We combine thoughtful design, transparent processes, and master craftsmanship to deliver additions that feel like they were always part of your Southborough home.
- Seamless Design & Build Process
- Owner-Supervised Construction
- Transparent Pricing & Communication
- Licensed, Insured & Experienced
- Serving Southborough & MetroWest MA
Whether you’re envisioning a modern kitchen upgrade or a full-scale remodel, we’re here to make it happen—on time, within budget, and with craftsmanship you can count on. From concept to completion, our team delivers tailored solutions that reflect your lifestyle, enhance functionality, and add lasting value to your home.


Home Addition Types We Build in Southborough, MA
From single-story additions to full second-story expansions, Regulus Construction offers a full range of home addition services for Southborough homeowners. Our team handles every phase — design, permitting, construction, and final inspection — so you can focus on enjoying your new space.


Our 7-Step Home Addition Process in Southborough
At Regulus Construction, we believe a smooth process is just as important as the final result. Here’s how we bring your kitchen vision to life:
- 1. Feasibility & Site Fit
- 2. Design & Planning
- 3. Structural Coordination
- 4. Permits & Scheduling (Southborough Building Dept.)
- 5. Construction
- 6. Inspections & Closeout
- 7. Final Walkthrough
Custom Home Additions in Southborough, MA — Built to Last
Every home addition we build in Southborough is designed to complement your existing architecture and meet local building codes. We work closely with you from concept to completion, ensuring a smooth process and beautifully crafted results that add lasting value to your home.
Home Addition FAQs for Southborough, MA Homeowners
How long does a home addition take in Southborough, MA?
Timelines depend on scope, design complexity, and permit review in Southborough. A small bump-out may take 4–6 weeks, while a second-story addition can take 3–5 months. We provide a detailed timeline before we begin.
Do I need a permit for a home addition?
Yes, virtually all home additions require a building permit in Southborough, MA. We handle the entire application and inspection process with the local building department on your behalf.
What is the cost per square foot for an addition?
Costs vary widely based on the type of addition, finishes, and site conditions in Southborough. We provide a detailed, transparent quote after our initial consultation.
