Basement ADU Services in South Shore, MA
At The Finished Basement, we specialize in designing and building basement ADUs (Accessory Dwelling Units) that add value, flexibility, and livable space to your home. Serving homeowners across the South Shore, Boston, Cape Cod, and surrounding Massachusetts communities, we create code-compliant basement apartments.
Quality ADUs in Plymouth and Surrounding Areas
Create a Functional Basement ADU
Whether you’re planning an in-law suite, rental unit, guest apartment, or multi-generational living space, our team brings over 25 years of experience to every ADU project — from design and permitting to final construction.
Quality ADUs and In-Law Suits
What Is a Basement ADU?
When to Consider a Basement ADU
When to Consider a Basement ADU
A basement ADU is a self-contained living space within your home that typically includes:
- A private sleeping area
- Kitchen or kitchenette
- Bathroom
- Separate living space
- Required egress and safety features
Basement ADUs are ideal for extended family, long-term guests, or homeowners looking to generate rental income.
When to Consider a Basement ADU
When to Consider a Basement ADU
When to Consider a Basement ADU
A basement ADU may be the right solution if you:
- Want to create an in-law apartment
- Are interested in rental income opportunities
- Need space for multi-generational living
- Want to increase your home’s value
- Have an underutilized basement with adequate ceiling height
- Need a private living space with its own amenities
No Obligation Free Estimates 781-812-3204
Why Choose The Finished Basement for Your ADU Project?
Over 25 years of basement remodeling experience
Fully licensed & insured
Veteran-owned & locally operated
In-house design team
All labor fully warrantied
Excellent communication throughout the project
Complete permit and code compliance management
Our Basement ADU Process
Step 2 – Free In-Home Consultation
Contact us to discuss your ADU goals.
Step 3 – Guaranteed Quote Within 24 Hours
Rob will visit your home, evaluate your basement, review zoning and code considerations, and discuss layout options. We design the space free of charge.
Step 4 – Detailed Proposal
You’ll receive a transparent quote outlining the scope, specifications, and cost of your basement ADU.
Step 5 – Project Kickoff
We provide a customized proposal and encourage open discussion. Adjustments are always welcome.
Step 5 – Project Kickoff
Once approved, we handle all planning, design, permitting, and construction, transforming your basement into a fully functional ADU.
Benefits of a Basement ADU
Adding a basement ADU offers long-term advantages:
- Increased property value and resale appeal
- Flexible living arrangements
- Potential rental income
- Private, self-contained living space
- Efficient use of existing square footage
- Cost-effective alternative to home additions
Boston, South Shore & Cape Cod ADUs
We design & build ADUs across Eastern Massachusetts, Boston to Cape Cod, Quincy, Braintree, Randolph, Hingham, Plymouth, Norwell, Hanover, Duxbury, Kingston, Marshfield, Pembroke, Plymouth, Cohasset, Scituate, Norwell, Weymouth, Sandwich, Mashpee, MA
📞Ready to explore a basement ADU for your home?
Client Reviews
Basement ADU FAQs
Please reach us at meaderrob@yahoo.com if you cannot find an answer to your question.
Basement ADUs are permitted in many Massachusetts communities, but zoning rules vary by town. We review local regulations and handle all permitting to ensure your ADU meets code requirements.
Yes, many homeowners use basement ADUs as long-term rental units or in-law apartments. Short-term rentals may be subject to additional local regulations.
Requirements typically include egress windows, ceiling height minimums, fire separation, proper ventilation, and plumbing. We ensure all safety and building standards are met.
Costs vary based on size, finishes, and plumbing requirements. On average, basement ADUs range from $60,000–$120,000. We provide clear, upfront pricing with free estimates.
Most basement ADU projects take 8–12 weeks, depending on permitting and complexity. We provide a clear timeline before construction begins.
Ready to Start Your Basement ADU or In-Law Suites Project?
Ready to explore a basement ADU for your home? Contact The Finished Basement to schedule your free, no-obligation consultation and learn how we can turn your basement into a comfortable, compliant living space.
We proudly serve homeowners across:
- South Shore, MA
- Boston, MA
- Cape Cod, MA
- Plymouth County | Norfolk County | Barnstable County | Bristol County
Hours
Mon - Sat 7 AM - 6 PM
Building Brands We Trust
Looking for a Free Estimate?
The Finished Basement
48 Crescent St, Plympton, MA 02367, USA
The Finished Basement | Plympton, MA
Serving homeowners across the South Shore, Boston, Cape Cod, Plymouth County, Norfolk County & Barnstable County for over 25 years.
- Basement Remodeling | Basement Finishing | Basement Design | Custom Features | Basement Bathrooms
- Fully Licensed & Insured | All Labor Fully Warrantied | Free Estimates
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