ADU Construction

Build a high-quality Accessory Dwelling Unit designed for flexible living, rental income, multigenerational housing, or increased property value.

Professional ADU Construction Services

Accessory Dwelling Units provide an efficient way to increase livable space and improve the functionality of your property. Whether you need a rental unit, an in law suite, a private guest house, or a home office, ADUs offer long term value and flexibility.

Atlas General Construction delivers complete ADU construction for detached, attached, and converted structures. Our team manages every phase of development including zoning research, architectural coordination, structural engineering, Title 24 compliance, permit processing, foundation work, framing, roofing, plumbing, electrical systems, HVAC installation, interior finishes, and final inspections.

We design efficient floor plans that maximize space, incorporate essential amenities, and complement the existing home. With more than 12 years of experience across the Bay Area, we understand local zoning laws, setback regulations, utility requirements, and the specific challenges involved in ADU construction. Our completed ADUs are built for durability, comfort, and long term performance.

Our ADU Construction Process

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Consultation

We start with a detailed property evaluation that includes zoning requirements, available space, feasibility, and intended use for the ADU. We also review design preferences, project goals, budget, and timeline.

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Design and Planning

Our team prepares architectural plans, oversees structural engineering, develops site preparation strategies, manages Title 24 documentation, and handles the full permit approval process. We design layouts that optimize usability and meet your goals.

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Construction

We manage all construction activities including foundation building, framing, roofing, installation of plumbing and electrical systems, insulation, drywall, flooring, cabinetry, interior finishes, and exterior integration. All work is performed by licensed professionals and adheres to California and local building codes.

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Final Walkthrough

After construction is complete, we conduct a full walkthrough to verify that all systems, fixtures, and finishes meet quality standards. A detailed project warranty is provided.

What Our Clients Say

We prioritize professionalism, reliability, friendliness, and respect, creating a construction journey built on trust. ✓ Verified Google Reviews
  • Highly Reliable General contractor with Unbeatable Value!! We hired Atlas for tenant improvements in Palo Alto—specifically adding a room, plumbing, electric, and handling all permitting through fire and final inspections. Our Project... READ MORE

    Hyder Gowher Avatar Hyder Gowher
    17.11.2025

    We are part way into a large remodel/addition project with Atlas (demo, foundation and a large retaining wall have been completed). We are very happy with the level of... READ MORE

    Pablo K Avatar Pablo K
    15.10.2025

    We couldn't be be more satisfied with the work Atlas did. The project provided exactly what we requested. The quality was excellent and the crew was friendly and... READ MORE

    Paul Armel Avatar Paul Armel
    01.08.2025
  • Romando and the Atlas team did an outstanding job on our complete home remodel project in Palo Alto. Romando was a pleasure to work with. From the start, he earned our... READ MORE

    Alex D Avatar Alex D
    10.06.2025

    Atlas GC is professional, personable and to-the-point. They do not over-sell and don't under deliver. Highly recommend them for quality workmanship and attention to high-quality material and design details. They... READ MORE

    Hari Raghavendra Avatar Hari Raghavendra
    15.04.2025

    We are very happy with the work Atlas has done for the house remodeling project. Their quality is good, they are flexible on minor changes and they guide us to... READ MORE

    Yasu Nagaoka Avatar Yasu Nagaoka
    02.04.2025
  • Atlas Construction did an outstanding job on our project! Their team was professional, detail-oriented, and efficient from start to finish. Communication was clear throughout the process, and the quality of... READ MORE

    Aziz Osmani Avatar Aziz Osmani
    05.02.2025

    Atlas did a very good job in totally redoing our kitchen, bathroom and laundry room. The quality of the finished kitchen, etc. Is excellent. Bill, the owner is amazing,. He... READ MORE

    Alyson Huey-weaver Avatar Alyson Huey-weaver
    26.01.2025

    We couldn’t be more thrilled with the exceptional work Atlas Construction has completed on our home in Los Gatos over the past six months. Their expertise, dedication, and meticulous attention... READ MORE

    Oytun Akman Avatar Oytun Akman
    21.01.2025
  • Atlas did an office renovation for our company. The job was completed on time and there was great communication of status updates as we are based out of state.

    joe genoa Avatar joe genoa
    16.01.2025

    Atlas construction did an amazing job on my kitchen remodeling project and reasonably priced. The crew, Reuben and Romando were great to work with, they completed the project quickly and... READ MORE

    Karuna Velusamy Avatar Karuna Velusamy
    11.01.2025

    I am writing this letter to commend and review the exceptional work provided by Atlas General Construction. My experience with this company has been outstanding from the very beginning to... READ MORE

    Santa Lu Avatar Santa Lu
    09.01.2025
  • As the co-owner of Ispirato Interiors, my business partner and I have worked with Atlas General Construction in multiple projects. When it was time to remodel my entire home, I didn’t... READ MORE

    Gamze Yamac Avatar Gamze Yamac
    09.01.2025

    I recently had the pleasure of working with Atlas General Construction to remodel my home, and I couldn't be happier with the results. From kitchen to floors to walls, their... READ MORE

    Sarthak Jain Avatar Sarthak Jain
    14.09.2024

    Bill did an outstanding job on the major renovation of my single-family home. The project included a complete kitchen rebuild, moving doors, removing a load-bearing wall, replacing the entire heating... READ MORE

    Orkhan Boyukzada Avatar Orkhan Boyukzada
    28.08.2024
  • I had a great experience working with Atlas. I first reached out to them for an estimate on repairs after I had water damage. Ruben helped price out what it... READ MORE

    Brittney Price Avatar Brittney Price
    08.03.2024

Why Homeowners Choose Atlas General Construction

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Trusted Bay Area General Contractor

We provide full-service solutions for new construction, whole home remodels, ADUs, room additions, structural renovations, and commercial construction.

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Structural Engineering and Complex Project Expertise

We specialize in second-story additions, load-bearing wall removals, foundation upgrades, and large-scale structural projects that require advanced engineering.

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Transparent and Accurate Estimates

Our estimates are based on actual construction requirements, detailed scopes of work, and milestone schedules.

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Superior Craftsmanship and Premium Materials

We use industry-leading materials and construction techniques to deliver long-lasting quality and visual excellence.

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Clear Communication

Every project includes a dedicated project manager, a project chat group, and regular updates with photos, videos, and walkthroughs.

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Knowledge of Local Building Codes

We understand Bay Area building and zoning regulations, ensuring permitting and inspections run smoothly and remain compliant.

Frequently Asked Questions About New Construction

What types of projects do you specialize in?

Whole home remodels, ADUs, room additions, second-story additions, structural renovations, kitchen remodels, bathroom remodels, garage conversions, and commercial construction.

Do you offer free estimates?

Yes. We provide a free site visit, project review, and a detailed estimate.

Can you help with architectural planning and permits?

Yes. We work with architects and engineers to support design, structural engineering, Title 24 compliance, permit submittals, and city revisions.

How long does a whole-home build or renovation take?

Most projects take 5 to 10 months, depending on scope, permitting, and structural needs.

Are you licensed and insured?

Yes. We are a fully licensed and insured California General Contractor.

Do you handle structural changes such as load-bearing wall removal?

Yes. Our team is experienced in structural work, including beams, wall removal, foundation upgrades, and second-story additions.

What areas do you serve?

We serve the San Francisco Bay Area and Peninsula.

How does your payment schedule work?

We use a milestone-based payment system that aligns with progress.

What makes Atlas General Construction different?

Precise estimating, premium craftsmanship, structural expertise, clear communication, and sustainable building practices.

What commercial projects do you handle?

Tenant improvements, office renovations, retail build-outs, restaurant construction, school renovations, structural upgrades, ADA compliance, multifamily improvements, and commercial additions.

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Engineering Your Dreams with Us

Our mission guides how we build: with accuracy, care, and long-term value in mind.

Our Commitment to Quality and Sustainability

We are dedicated to exceptional craftsmanship and environmentally responsible construction. With more than 12 years of experience, our work emphasizes:

  • Structural accuracy
  • Code-compliant construction
  • Long-lasting durability
  • Aesthetic and functional excellence

We use modern building technology, high-quality materials, and efficient techniques to deliver better outcomes for homeowners and communities. We are committed to eco-friendly methods, sustainable materials, waste reduction, and long-term community growth.

Get Your Free Quote Today

Ready to convert your garage, basement, or attic into a functional living space? Contact us for a free consultation and a detailed estimate.
Schedule a Free Consultation




    Contact Information
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    Address

    101 Jefferson Drive, Suite 209, Menlo Park, CA, 94025

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    Working Hours

    Monday - Friday
    7:30 am- 5:00 pm

    Related Services

    Explore our other renovation services
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    Garage Conversions
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    Home Additions & Extensions
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    Full Home Remodeling

    ADU Construction by City

    We build ADUs across the Peninsula. Explore our city-specific ADU services:

    ADU Construction in Palo Alto
    Eichler ADUs, detached units, garage conversions
    ADU Construction in Menlo Park
    Local office — fastest Peninsula response
    ADU Construction in Los Altos
    Premium ADUs for Los Altos & Los Altos Hills
    ADU Construction in Redwood City
    Streamlined permitting, fast delivery
    ADU Construction in Atherton
    Estate-quality luxury ADUs
    Get a Free ADU Estimate
    Any Peninsula city — free consultation