Shipping Container ADU Builds Service

Looking for a unique and functional living space? Modern ADU Builder specializes in transforming shipping containers into beautiful Accessory Dwelling Units that maximize space and value. Our team combines innovative design with practical functionality to create container homes that stand out in today's housing market.


We handle every step of your container ADU journey, from initial design concepts to final move-in day. Using both 20-foot and 40-foot containers, we create modern, custom spaces that fit your specific needs and style preferences. Our builds are perfect for guest houses, rental units, or extra living space for family members.


At Modern ADU Builder, we pride ourselves on our family-owned approach and attention to detail. We believe shipping container ADU homes offer a sustainable, affordable alternative to traditional construction while still providing all the comforts of a conventional home. Our full-service process takes care of permits, design, and construction so you can enjoy your new space without the stress.

Construction and Installation Process

Modern ADU Builder delivers a streamlined construction process for shipping container ADUs. Our modular approach allows for faster completion times while maintaining quality standards throughout the build.

  • 1. Consultation and Project Assessment

    We begin with a thorough consultation to understand your needs and vision. During this initial meeting, our team evaluates your property to determine the optimal placement for your shipping container ADU. We consider factors like sunlight exposure, access points, and utility connections.

  • 2. Design and Customization

    Once we've established the basics, our design team works with you to customize your container home. We offer pre-designed floor plans that can be modified or the option to create a completely custom layout.

  • 3. Permitting and Compliance

    Navigating local building codes and permit requirements can be challenging. Our team handles this complex process for you. We prepare and submit all necessary documentation to local authorities. We stay current with ADU-specific regulations, which often differ from standard building codes.

  • 4. Site Preparation

    Before your container ADU arrives, we thoroughly prepare your site. Our team conducts detailed surveys to determine the optimal placement and foundation requirements for your specific property.

  • 5. Container Modification

    We transform shipping containers into comfortable living spaces through strategic modifications. Our process begins in our off-site facility where containers undergo thorough cleaning, structural reinforcement, and rust prevention treatments.

  • 6. On-Site Assembly

    Once your modified containers arrive at your property, our installation team works efficiently to place them on the prepared foundation. Using specialized equipment, we position each unit precisely according to your design plans.

Floor Plan Choices

We provide multiple floor plan options to suit different lifestyle needs. Our standard layouts range from compact studio designs (320 sq ft) to spacious two-bedroom units (640 sq ft). Each floor plan maximizes the available space with thoughtful room arrangements.


For smaller lots, our studio and one-bedroom models work well as backyard offices or guest quarters. Families often prefer our larger options with separated bedrooms for privacy.


We can also create custom floor plans based on your specific requirements. Want to combine multiple containers for an expanded living area? Our design team will work with you to develop a configuration that fits your property and needs.

Interior Finishes and Fixtures

Your container ADU's interior can be finished to match your style preferences and budget. We offer several tiers of finishes, from our budget-friendly essentials package to premium customized options.



Kitchen choices include various cabinet styles, countertop materials (laminate, quartz, recycled glass), and appliance packages. For flooring, select from vinyl planks, bamboo, polished concrete, or tile options.


Bathroom fixtures range from standard to high-efficiency models. Choose between traditional or walk-in shower designs, various vanity styles, and water-saving toilets.


Lighting dramatically affects your space's feel. We install energy-efficient LED fixtures throughout, with options for pendant lights, recessed lighting, or decorative sconces based on your preference.

Post-Build Assistance

Our standard warranty package covers all shipping container ADU builds for 3 years from completion date. This warranty includes structural elements, weatherproofing, electrical systems, plumbing, and finishes.


If you encounter any issues related to our workmanship, we'll address them promptly at no additional cost. Our response team typically arrives within 48-72 hours of your service request.


We also provide detailed documentation for all installed systems and materials. This information helps you understand your container ADU's components and maintenance requirements. Additionally, we offer warranty extensions beyond the standard 3-year period for added peace of mind. These extensions can be customized to cover specific systems that matter most to you.

Maintenance Services

We offer scheduled maintenance plans to keep your shipping container ADU functioning optimally. Our basic plan includes bi-annual inspections to check structural integrity, weatherproofing seals, and mechanical systems.


Our technicians can identify potential issues before they become costly problems. Regular maintenance helps maintain energy efficiency and extends the lifespan of your container ADU.


We also provide:


  • Seasonal preparation services (weatherization)
  • HVAC system tune-ups
  • Plumbing and electrical inspections
  • Exterior finish touch-ups and cleaning


For container-specific maintenance, we offer specialized services addressing unique aspects like seam inspections and rust prevention treatments. Our team understands the specific requirements of shipping container structures and how to maintain them properly.

FAQs on Shipping Container ADU Builds

Hi there! Have some questions about our service? Find the answers below. 

  • What are the different design options available for shipping container homes?

    Shipping container homes offer diverse design possibilities ranging from simple single-container studios to complex multi-container estates. Common approaches include stacking containers for multi-story structures, arranging them in L or U shapes for courtyards, or cantilevering them for architectural interest. 


    Many designs incorporate large cutouts for windows, sliding glass doors, or open-concept living spaces that transform the industrial box into a comfortable home. Exterior options range from preserving the container's industrial aesthetic to completely disguising it with cladding, siding, green walls, or decorative screens. Container homes can also integrate sustainable features like green roofs, solar panels, rainwater collection systems, and passive heating/cooling designs.

  • How much does it typically cost to build a container home?

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  • What is the typical timeline for constructing a shipping container ADU?

    The typical timeline for completing a shipping container ADU ranges from 2-6 months from concept to move-in. Planning and permitting generally take 1-2 months, depending on local jurisdiction requirements and review processes. 


    The container modification phase, which includes cutting openings, structural reinforcement, and initial utility preparation, typically requires 3-6 weeks. On-site installation, including foundation work, container placement, and utility connections, usually takes 2-4 weeks. Interior finishing work, including insulation, drywall, flooring, and fixtures, represents the final major phase, generally requiring another 3-6 weeks before final inspections.

  • Can shipping container homes be customized to meet specific living needs?

    Shipping container homes offer exceptional customization potential for addressing specific living requirements and personal preferences. The modular nature of containers allows for easy expansion by adding units, creating spaces tailored to family size or specialized needs like home offices or guest quarters. Interior layouts can be completely customized, with non-load-bearing areas available for open-concept designs or specialized accessibility features. 


    Windows, doors, and skylights can be positioned strategically to maximize natural light or capture views, completely transforming the container's industrial character. Finishes, built-ins, smart home technology, and energy systems can all be tailored to match lifestyle needs and aesthetic preferences.

  • What are the zoning and building codes to consider when installing a shipping container ADU?

    When installing a shipping container ADU, you'll need to research local zoning ordinances regarding accessory dwelling units, including size restrictions, setback requirements, and occupancy regulations. Most jurisdictions require building permits addressing structural modifications, foundations, insulation R-values, ventilation, ceiling heights, egress windows, and utility connections. 


    Container homes must meet the same building code requirements as traditional construction, though some areas have additional requirements specifically for alternative construction methods. Special consideration should be given to foundation design, as containers require proper structural support to prevent warping or settling over time. Some neighborhoods or historic districts may have additional design review requirements or homeowner association restrictions that impact container home projects.

  • How does the durability and maintenance of container homes compare to traditional constructions?

    Shipping containers are built from weathered-resistant Corten steel designed to withstand harsh ocean transport conditions, potentially offering excellent durability against weather extremes and resistance to pests like termites. The steel structure requires different maintenance than wood framing, particularly attention to preventing rust and condensation through proper insulation, ventilation, and protective coatings. 


    Container homes typically perform well in high-wind environments and seismic conditions when properly anchored, though they require thoughtful engineering to address heat transfer issues inherent to metal construction. The industrial-grade flooring in containers often contains chemical treatments that may need replacement for healthy indoor living, while roof maintenance is crucial as standing water can accelerate deterioration. With proper construction and maintenance, container homes can last 25+ years, comparable to conventional homes, though repair approaches differ when addressing damaged steel versus traditional building materials.