ADU Builder in Beverly, MA
Create More Living Space Without Leaving the Home You Love
If you are thinking about adding an accessory dwelling unit to your Beverly property, the first step is finding out what is actually possible on your lot. An ADU can give your family more flexibility, whether you want space for aging parents, adult children, guests, rental income, or a private home office.

We help Beverly homeowners plan and build ADUs that fit the property, meet local requirements, and feel like a natural part of the home. From early feasibility questions to design, permitting, construction, and final finish work, our goal is to make the process clear from the beginning.
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ADU Construction for Beverly Homeowners
Accessory dwelling units can be built in several ways, depending on your home, lot, budget, and goals. Massachusetts recognizes ADUs as small residential living spaces on the same lot as another home, and they may be internal, attached, or detached (Mass.gov).
We can help with:
- Detached ADUs: Backyard cottages, guest houses, and small secondary homes.
- Attached ADUs: Additions with private living space and a separate entrance.
- Garage Conversions: Turning an existing garage into a legal living unit.
- Basement ADUs: Creating a private apartment inside the existing home.
- In-Law Suites: Comfortable space for parents, adult children, or extended family.
- Guest Apartments: Flexible living space for visitors, family, or long-term use.
Why Beverly Homeowners Are Looking at ADUs
ADUs are becoming more popular because they solve real-life housing problems. They can create privacy for family members, help older homeowners age in place, add useful square footage, and make a property more flexible over time.
For many Beverly homeowners, the question is not just “Can I build an ADU?” It is “What type of ADU makes sense for my property, budget, and long-term plans?”
That is where a local design-build approach matters.
We Help You Understand the Site Before You Build
Every ADU project starts with practical questions:
- Is there enough room on the lot?
- Would a detached, attached, or interior ADU make more sense?
- Where would utilities connect?
- Will parking, setbacks, access, or drainage affect the project?
- What will the design and permitting process involve?
- What budget range should you realistically expect?
Beverly’s ADU ordinance is in effect, and the city directs homeowners to apply through the Building Department for ADU construction permits
(City of Beverly). A good ADU plan should account for local requirements before drawings, budgets, or construction schedules get too far along.
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A Clear Process from Idea to Finished Space
Site Review and Goals
We start by learning what you want the ADU to do. Some homeowners need a private suite for a parent. Others want a detached rental unit, a guest space, or a flexible apartment for future use.
Feasibility and Budget Planning
Next, we look at the property, access, utilities, structure, and likely construction path. This helps you understand the project before committing to detailed plans.
Design and Permitting
Once the direction is clear, the ADU design can be developed around your property, budget, and Beverly’s requirements. The goal is to create a plan that is attractive, functional, and buildable.
Construction and Finish Work
After approvals, the project moves into construction. That may include site work, foundation, framing, utilities, insulation, windows, roofing, siding, interior finishes, and final inspections.
Final Walkthrough
Before the project is complete, we review the finished space with you and make sure the details are handled properly.
Built for Family, Flexibility, and Long-Term Value
An ADU is not just another remodeling project. It is a second living space that needs to work well every day.
Your ADU may need:
- A comfortable bedroom or sleeping area
- A bathroom
- A kitchenette or full kitchen
- A separate entrance
- Heating and cooling
- Storage
- Natural light
- Privacy from the main home
- A design that matches the existing property
Whether you are building for family, income, guests, or future flexibility, the best ADUs feel intentional. They should look good, function well, and make sense for the way you plan to use the property.
Frequently Asked Questions
Can I build an ADU in Beverly, MA?
Beverly has an ADU ordinance in effect, and the city allows attached and detached ADUs in most single-family residential districts according to the city’s ADU ordinance page (City of Beverly). The best way to know what is possible on your specific property is to review the lot, zoning, existing structure, parking, and permit path.
What types of ADUs can be built?
Common ADU types include detached backyard cottages, attached additions, garage conversions, basement apartments, and in-law suites. Massachusetts describes ADUs as living spaces that may be inside an existing home, attached to the primary residence, or completely detached (Mass.gov).
How big can an ADU be in Massachusetts?
Under the statewide ADU rules, an ADU must be no larger than half the gross floor area of the principal dwelling or 900 square feet, whichever is smaller (Mass.gov). Local requirements can also affect the final design, so it is important to review the property before assuming a specific size.
Do I need a permit for an ADU in Beverly?
Yes. Beverly directs homeowners to file a building permit application through the Department of Municipal Inspections for ADU construction (City of Beverly).
How much does it cost to build an ADU?
ADU costs vary based on size, structure type, utilities, site work, foundation needs, finishes, and whether the unit is detached, attached, or built inside existing space. A garage or basement conversion may have a very different budget than a detached backyard cottage.
Is an ADU the same as an in-law apartment?
An in-law apartment is one common type of ADU. Many homeowners still use terms like in-law suite, accessory apartment, guest house, backyard cottage, or garage apartment when they are talking about an ADU.
Ready to Build Your ADU in Beverly?
Let A-Z Finish Carpentry bring your accessory dwelling unit vision to life while navigating Beverly's regulations seamlessly.
📞 Call us today at (954) 621-5966 for a free, no‑obligation consultation.
✉️ Or fill out our quick contact form above to get started
