Dan Boyle Construction offers expert ADU construction in Santa Rosa & Sonoma County. With 30+ years experience, they handle site evaluation, permits, design & full builds for detached ADUs, granny flats & backyard cottages.

About Dan Boyle Construction

ADU Construction Services by Dan Boyle Construction in Santa Rosa

Dan Boyle Construction is a construction firm based in Sonoma County with over 30 years of experience in high-end home construction. They serve homeowners in Santa Rosa, Sebastopol, Healdsburg, Petaluma, and surrounding areas, offering ADU contractor services that take projects from initial concept through to completed construction.

An accessory dwelling unit (ADU) is a secondary housing unit built on a single-family residential lot. These structures can serve a range of purposes, including:

  1. Guest houses for visiting family
  2. Rental properties for additional income
  3. Home offices or dedicated workspaces
  4. Art studios or hobby spaces
  5. Personal retreats or backyard sanctuaries

As an experienced ADU builder in the Santa Rosa area, Dan Boyle Construction handles the full scope of ADU projects, providing concept-to-construction services designed to reduce the complexity typically associated with these builds.

What Dan Boyle Construction Offers

Their ADU construction services cover all key stages of a project. Homeowners looking for a detached ADU builder or a contractor to handle a backyard cottage or granny flat will find that Dan Boyle Construction manages the process from start to finish. Their services include:

  1. Site evaluation – assessing the property's potential and identifying any constraints
  2. Custom design and planning – working with trusted local architects and designers to develop plans that suit the homeowner's needs
  3. Permit acquisition guidance – navigating local codes and regulations in Sonoma County
  4. Full construction services – overseeing all aspects of the build
  5. Interior design and finishing referrals – connecting clients with relevant specialists
  6. Project management – coordinating subcontractors and keeping clients informed throughout

Their familiarity with Sonoma County's local zoning laws, building codes, and permitting processes is a practical advantage for homeowners who may find that side of ADU development challenging to navigate independently.

Beyond accessory dwelling unit construction, Dan Boyle Construction also works on sheds, garages, and other outbuildings that homeowners are increasingly converting into functional living or working spaces. Whether the goal is a Casita-style guest unit, a dedicated home office, or a workshop, they approach each project with the same construction process.

The Construction Process

Dan Boyle Construction follows a structured process for each ADU project. It begins with an initial consultation — either by phone or in person — to understand the homeowner's vision and requirements. This is followed by a property evaluation, where the site is assessed in person and local regulations are discussed.

From there, the design and planning phase involves developing custom plans in compliance with local codes, with revisions made until the client is satisfied. Clear contract documents are then prepared, outlining the scope of work, timeline, and budget breakdown.

During construction, Dan Boyle Construction conducts regular site visits, coordinates with subcontractors, and provides ongoing updates through the client's preferred communication method. Once construction is complete, a final walk-through is conducted, and the team remains available for any post-construction questions or maintenance recommendations.

For homeowners in the Santa Rosa area considering an ADU — whether a detached ADU, an in-law suite, or a smaller backyard cottage — Dan Boyle Construction offers a well-established process backed by decades of local construction experience.

Services

Dan Boyle Construction performs the following services

  • Architecture & Design
  • Permit Specialist
  • Construction
  • Feasibility & Site Assessment
  • Finishing & Fit-out

Dan Boyle Construction Reviews

Claire Berto

2025-05-20
"Dan Boyle is great to work with: quality work, excellent subs, organized, good communicator, and creative problem solver. Our project was 1200 sq ft ADU and it is beautiful, completed within the expected time and budget."

Timothy Nordvedt

2025-04-04
"Dan's company has really taken care of us over the years. His work is meticulous and very high quality and you can take him at his word. I highly recommend him for a variety of construction projects such as design-build, remodel, and site work."

Specifics

30 years in business Eco-Friendly Luxury Builds

Opening hours

Monday 9:00AM - 5:00PM
Tuesday 9:00AM - 5:00PM
Wednesday 9:00AM - 5:00PM
Thursday 9:00AM - 5:00PM
Friday 9:00AM - 5:00PM
Saturday -
Sunday -

Location

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