Accessory Dwelling Units (ADUs) in West Roxbury & Boston, MA

Custom ADU Construction Tailored for Modern Living

Accessory Dwelling Units, or ADUs, are one of the smartest ways homeowners in West Roxbury and Boston are expanding their living space, increasing home value, and creating flexible housing options without major disruption to their primary home. At Tom Brady Carpentry, we specialize in building ADUs that look great, function beautifully, and blend seamlessly with the character of your property.


Whether you want a backyard cottage, a rental unit, an in-law suite, or a private workspace that keeps you far away from kitchen-table distractions, we bring the craftsmanship, creativity, and skill needed to build an ADU that truly feels like a second home.

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Deck Installation — Tom Brady Carpentry in West Roxbury, MA

Understanding ADUs: Why Homeowners in Boston and West Roxbury Love Them

ADUs have become increasingly popular because they offer practical space solutions without disrupting your existing home—perfect for areas like Boston where space is precious and every square foot matters. They provide independence for family members, long-term income potential, and the flexibility to adapt over time as your household needs change. Instead of committing to a large addition or building an entirely new structure somewhere else, an ADU lets you expand your living space right on your own property in a creative and cost-effective way.

The Benefits of Adding an ADU Include:

  • Multi-Generational Living with Privacy

    Professional deck builders are experienced and skilled in performing reliable installations. They use the best quality materials and ensure results are up to the highest standards.

  • Rental Income Opportunities

    As a time-consuming project, deck installation is an intensive job, and having a professional handle the job will help you save considerable time. Professional installation is fast and efficient and provides peace of mind that the job is being done right the first time.

  • Increased Property Value

    Professional deck installers have a good handle on the safety requirements and the right way to put things together. Furthermore, they use efficient methods to complete the task faster. Professional installers will ensure your deck is built to code, reducing the risk of potentially dangerous structural failure.

  • Flexible Use Over Time

    Professional deck installation can save you money in the long run. Contractors know the right way to combine materials, are well-equipped with the necessary tools, and can source materials at the best prices.

  • Smart Use of Small Urban Spaces

    Perfect for Boston’s tight neighborhoods where land is limited but creativity isn’t.

At Tom Brady Carpentry, we help homeowners navigate zoning considerations, design concepts, material choices, and energy-efficient construction planning. We make ADU construction feel manageable—dare we even say enjoyable—by offering guidance at every step.

Custom ADU Design  That Fits Your Property, Lifestyle, and Vision

Our design process focuses on creating ADUs that fit your property’s layout, your lifestyle needs, and your long-term goals. We take into account how your home is used today and how your new ADU should function in the future, ensuring every detail is purposeful and well-planned. Whether you’re aiming for a stylish rental, a cozy hideaway for guests, or a suite for family members, we design ADUs that feel spacious, comfortable, and naturally integrated into your existing property.

Our ADU Design Process Includes:

  • Site Assessment & Feasibility Review: We evaluate the available space, property slopes, drainage, and local codes to determine the best ADU placement.
  • Architectural Layout & Space Planning: We draft a floor plan that utilizes every inch wisely, ensuring flow, comfort, and functionality.
  • Material Selection Guidance: From flooring to cabinetry to exterior finishes, we help you select materials that strike the perfect balance between durability and beauty.
  • Energy-Efficiency Planning: Proper insulation, efficient windows, and smart HVAC solutions make ADUs more comfortable and more affordable to operate.
  • Future-Proof Design Considerations: We help you think ahead so your ADU remains useful as your needs evolve.

Our team collaborates with you throughout the entire design phase, offering clear communication and professional insight. Your ADU isn’t just another structure on your property—it’s an extension of your home, and we treat it with the care it deserves.

High-Quality ADU Construction from Experienced Craftsmen

Once your design is finalized, we move into construction with a focus on precision, communication, and top-tier workmanship. ADUs require the same careful planning and high-quality construction as any home, and our team ensures your new space is built to last. From expert framing to meticulous trim work, we deliver craftsmanship that reflects our years of experience in Boston-area residential building.

What Our Construction Process Looks Like:

  • Detailed Planning and Permitting

    Professional deck builders are experienced and skilled in performing reliable installations. They use the best quality materials and ensure results are up to the highest standards.

  • Foundation and Framing Excellence

    As a time-consuming project, deck installation is an intensive job, and having a professional handle the job will help you save considerable time. Professional installation is fast and efficient and provides peace of mind that the job is being done right the first time.

  • High-Quality Electrical, Plumbing & HVAC Work

    Professional deck installers have a good handle on the safety requirements and the right way to put things together. Furthermore, they use efficient methods to complete the task faster. Professional installers will ensure your deck is built to code, reducing the risk of potentially dangerous structural failure.

  • Interior Trim, Flooring & Finish Work

    Here’s where craftsmanship shines. We specialize in detail—including custom trim that elevates your entire living space.

  • Exterior Finishing for Lasting Protection

    From siding to roof installation to window and door placement, your ADU is built for New England’s weather patterns.

Our team believes construction doesn’t have to be stressful. We communicate clearly and keep you updated throughout the project, so there are no surprises—except maybe how much you’ll love the finished result.

Deck Installation — Tom Brady Carpentry in West Roxbury, MA

Types of ADUs We Build in West Roxbury and Boston

Not all ADUs are the same, and your property may lend itself to one type more than another. Whether your yard has ample open space or your home structure offers opportunities for creative additions, we can design and build the right ADU for your needs.

  • Detached ADUs: These standalone structures offer maximum privacy. Think of them as tiny homes—but custom-built, beautiful, and designed for long-term living. Popular for rental units and guest houses.
  • Attached ADUs: Built as an extension of your home, these units share a wall but maintain their own entrance and utilities.
  • Above-Garage ADUs: A smart way to use vertical space. Perfect for homeowners who want an ADU but don’t want to lose yard area.
  • Basement Conversions: A great option for homes with underutilized lower levels. We transform your basement into a legal, functional living space that looks nothing like a “basement.”
  • Interior Conversion ADUs: Sometimes a rearranged floor plan or reconfigured space can create an entire living unit within your existing structure.

Each type comes with its own planning considerations, but don’t worry—we guide you through the best option for your property and budget.

ADUs for Rentals, Family, Hobbies, and More

One of the best things about ADUs is their flexibility. They aren’t built for one purpose—they’re built for many. With the right design, an ADU can evolve along with your family’s needs.

Popular Uses for ADUs Include:

  • Long-Term Rental Units

    Professional deck builders are experienced and skilled in performing reliable installations. They use the best quality materials and ensure results are up to the highest standards.

  • Short-Term Guest Stays

    As a time-consuming project, deck installation is an intensive job, and having a professional handle the job will help you save considerable time. Professional installation is fast and efficient and provides peace of mind that the job is being done right the first time.

  • In-Law Suites

    Professional deck installers have a good handle on the safety requirements and the right way to put things together. Furthermore, they use efficient methods to complete the task faster. Professional installers will ensure your deck is built to code, reducing the risk of potentially dangerous structural failure.

  • Home Office or Creative Studio

    Professional deck installation can save you money in the long run. Contractors know the right way to combine materials, are well-equipped with the necessary tools, and can source materials at the best prices.

  • Private Living for Adult Children

    Perfect for Boston’s tight neighborhoods where land is limited but creativity isn’t.

  • Aging-in-Place Solutions

    Plan for the future with a comfortable, accessible living space.

Whatever your vision is, we help you bring it to life in a way that’s functional, comfortable, and thoughtfully designed.

Your Trusted ADU Builders in West Roxbury & Boston, MA

Ready to Build an ADU? Contact Tom Brady Carpentry Today

If you’re considering an ADU, there’s a good chance you’ve already imagined the possibilities—and maybe even measured your backyard once or twice. Now’s the time to take the next step. At Tom Brady Carpentry, we’re here to make the process straightforward, stress-free, and surprisingly enjoyable. Our team combines craftsmanship with creativity to deliver an ADU you’ll be proud of for decades to come. Whether you want a rental unit, a family suite, or a custom space built just for you, we’re ready to help.


Reach out to our friendly crew today to schedule a consultation. We’ll evaluate your property, discuss design ideas, review costs, and outline the full process from start to finish. Your dream ADU is closer than you think—and we’re excited to help you bring it to life. Call us at 617-710-2239 or 508-541-9159 to get started.

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Frequently Asked Questions

  • How long does it take to build an ADU?

    Most ADUs take between 4 to 8 months to complete, depending on design complexity, permitting requirements, and site conditions. We provide a clear timeline before any work begins.

  • Are ADUs allowed on all properties in Boston and West Roxbury?

    Zoning regulations vary by neighborhood. Many properties qualify, but some require specific approvals. We help you navigate local zoning to determine what’s possible on your lot.

  • How much does an ADU typically cost?

    Costs vary widely based on size, structure type, and finishes. After evaluating your property and discussing your goals, we provide a detailed estimate with no surprises.

  • Can an ADU increase my property value?

    Absolutely. ADUs are one of the highest-ROI home improvements, especially in markets with high housing demand like Boston.

  • Do ADUs require separate utilities?

    Not always. We can connect to your existing utilities or install separate systems depending on your needs and local requirements.