South Shore’s Award-Winning ADU & Home Addition Builders
What Is an ADU?
An ADU (Accessory Dwelling Unit) is a secondary residential living space located on the same property as a primary home. ADUs can be: detached backyard cottages, attached additions, garage conversions, basement apartments, in-law suites, or above-garage apartments. With the rise of ADU building services, homeowners are increasingly turning to companies like Bethoney Builders to create these versatile spaces. As one of the fastest-growing housing solutions in Massachusetts, ADUs offer flexibility, affordability, and long-term value, making them a popular choice among home addition contractors.
Design • Permit • Build
Ready to get started on your project? Contact us today to receive a free quote.
Build Your Accessory Dwelling Unit (ADU) in 60 Days
- Architectural planning
- Site preparation
- Excavation
- Foundation
- Framing & roofing
- Siding & windows
- Electrical, plumbing & HVAC
- Kitchen & bathroom installation
- Flooring, trim & paint
- Final inspections
- Project management
- Final pricing may vary based on site conditions, utilities, design selections, and local requirements.
Yes! That’s a Detached ADU!
Yes — That’s an ADU! ✔ Under 900 sq ft ✔ Built in as little as 75 days. With Bethoney Builders, you can access comprehensive ADU building services with just one call: Design • Permit • Build, making us your trusted home addition contractors.
Why Homeowners Choose Bethoney Builders
With over 30 years of building experience, Bethoney Builders is a licensed and insured company in Massachusetts. As an award-winning builder on the South Shore, we specialize in ADU building services and serve as trusted home addition contractors. Our expertise in ADU design and permitting ensures that all job sites remain clean, safe, and professional.
Building Contractor Services
What is an ADU?
An ADU, or Accessory Dwelling Unit, is a small, independent living space on your property that can be constructed using ADU building services from Bethoney Builders. These units can be detached, attached, or converted spaces, offering flexibility for homeowners and their families, whether you are collaborating with home addition contractors or aiming to create a unique living arrangement.
ADU Project/Build Timeline
During the initial meeting with the builder or homeowner at the site visit, we will discuss our ADU building services. Before construction begins with Bethoney Builders, your trusted home addition contractors, we will create a Certified Plot Plan for the ADU, whether it is attached or detached.
One-Bedroom ADU Floor Plan Overview
One-Bedroom ADU Floor Plan Overview
A typical one-bedroom ADU, often crafted by home addition contractors like Bethoney Builders, ranges from 400-600 sq ft and includes a cozy bedroom, living area, kitchen, and bathroom for comfortable living. These ADU building services are designed to maximize space while ensuring all essential amenities are provided.
Benefits of Adding an ADU
Flexible Living Arrangements for Family
An ADU, or Accessory Dwelling Unit, is a small, independent living space on your property that can be constructed using ADU building services from Bethoney Builders. These units can be detached, attached, or converted spaces, offering flexibility for homeowners and their families, whether you are collaborating with home addition contractors or aiming to create a unique living arrangement.
Aging-in-Place
During the initial meeting with the builder or homeowner at the site visit, we will discuss our ADU building services. Before construction begins with Bethoney Builders, your trusted home addition contractors, we will create a Certified Plot Plan for the ADU, whether it is attached or detached.
Increased Property Value
A typical one-bedroom ADU, often crafted by home addition contractors like Bethoney Builders, ranges from 400-600 sq ft and includes a cozy bedroom, living area, kitchen, and bathroom for comfortable living. These ADU building services are designed to maximize space while ensuring all essential amenities are provided.
Our ADU Gallery
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