Mountain Top Construction is a Bay Area ADU builder serving San Rafael, San Francisco, and Las Vegas. They specialize in detached ADUs, backyard cottages, granny flats, and in-law suites, managing design, permitting, and construction.

Mountain Top Construction – ADU Contractor in San Rafael, CA

About Mountain Top Construction

Mountain Top Construction: ADU Builder and Accessory Dwelling Unit Specialist

Mountain Top Construction Company offers accessory dwelling unit (ADU) construction services designed to expand living space and add value to residential properties. Based in the Bay Area and operating across San Rafael, CA, San Francisco, CA, and Las Vegas, NV, they work with homeowners looking to make practical use of their property through well-built ADUs.

Whether the goal is a backyard cottage, a detached ADU, or an addition that integrates with an existing structure, Mountain Top Construction handles projects from initial design through to completion. Their team works through the full process, including design conceptualization, permitting considerations, and construction, aiming to deliver spaces that function well and fit the character of the surrounding property.

ADU Services and Scope of Work

As an experienced ADU contractor, Mountain Top Construction focuses on building units that balance functionality with thoughtful design. Their services include:

  1. Design and planning for accessory dwelling units
  2. Construction of detached ADUs and backyard cottages
  3. Home additions that expand existing living areas
  4. Full project management from concept to final build

The company positions itself as a resource for homeowners who want guidance throughout the process. Their team assists clients in understanding the steps involved in adding an ADU or home addition, helping to navigate what can be a complex construction and permitting process.

Mountain Top Construction serves homeowners who may be looking for a granny flat builder or an in-law suite builder — practical housing solutions that allow for multigenerational living or rental income opportunities. Each project is approached with attention to how the new structure will integrate with the existing property.

Service Areas

Mountain Top Construction operates in several regions, including:

  1. San Rafael, CA
  2. San Francisco, CA
  3. The broader Bay Area
  4. Las Vegas, NV and surrounding areas

For property owners in these regions considering an accessory dwelling unit builder for their next project, Mountain Top Construction offers a team with experience in both the design and construction phases of ADU development. Their focus is on delivering results that meet the homeowner's space and functionality needs while maintaining quality throughout the build process.

Services

Mountain Top Construction performs the following services

  • Architecture & Design
  • Construction
  • Finishing & Fit-out

Mountain Top Construction Reviews

Dror Argaman

2025-09-14
"Great work! From the first interaction with Paul and his team, we knew we had chosen the right company. The employees were professional, organized, and very clean, making our two-bathroom remodel smooth and stress-free. They communicated clearly at every stage, kept the workspace tidy, and showed remarkable attention to detail. Every day, the bathrooms were left clean and functional, which made living in our home easy during the renovation. Paul's team treated our home with respect, followed the timeline, and delivered results beyond our expectations. By the end, our bathrooms were transformed into beautiful, functional spaces. We highly recommend Mountain Top Construction to anyone seeking skilled, reliable professionals who make remodeling enjoyable and hassle-free."

oaoa669

2024-08-27
"We were extremely impressed with Mountain Top Construction and Zack's team's work on our ADU project. They were professional, efficient, and incredibly communicative throughout the entire process. The quality of their craftsmanship was exceptional, and they left the site cleaner than they found it. We couldn't be happier with the results and would highly recommend this company to anyone in need of ADU, additions, or any type of home construction."

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Specifics

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 9:00AM - 5:00PM
Sunday 9:00AM - 5:00PM

Location

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