Faster, Smarter ADUs — Without the Headaches

Get a move-in ready ADU delivered and installed in weeks — ADU Geeks handles everything, from permits to punch lists.

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Let us handle the permits for you

With over 500 successful projects under our belt, we simplify the ADU permit process so you can focus on what matters most—bringing your vision to life.

Dealing with complicated paperwork and municipal requirements can be daunting for anyone– except us, of course. Throughout the entire process, we manage the permitting and coordinate fees, providing you with concierge-level support to ensure your ADU project progresses as efficiently as possible.

  • Thorough Research

    We pinpoint the exact surveys and documentation needed for your location to ensure that no detail is overlooked.

  • Agency Communication

    We handle all interactions with relevant agencies and governing bodies on your behalf.

  • Detailed Plans

    We create comprehensive plans that can be easily submitted where needed.

  • Response Management

    We address complex reviews from the local planning department to minimize delays

  • Document Preparation

    We prepare all the necessary paperwork for review.

  • Fee Coordination

    We manage and coordinate fee payments.

Your ADU concierge

Connected to trusted, local professionals

Why choose an ADU Geeks contractor?

  • Peace of mind

    We only recommend contractors who have a proven track record of quality, reliability, and excellence in ADU development.

  • Ongoing support

    Whether you have questions, concerns, or changes, our team is happy to be on standby if anything comes up.

  • Minimized risk

    We’re confident in the builders we recommend. Rest assured knowing that they carry the necessary credentials, insurance, and warranties.

What is an MDU?

A Multi-Dwelling Unit (MDU) is housing where multiple units are contained within a single structure. These can also be called multiple-unit dwellings or multifamily developments.

Partnering with ADU Geeks to build an MDU means enhancing your real estate portfolio, elevating your neighborhood, and unlocking valuable investment opportunities. Examples of MDUs we've planned and designed include:

  • Apartment complexes
  • Condominiums
  • Duplexes, triplexes, and fourplexes
  • Townhomes
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What's included in this package?

  • Site Evaluation

    Initial site visit and review of existing utility conditions.

  • Land Assessment

    811 Dig Alert submittal for underground gas and electric services if needed.

  • Utility Planning

    Recommendation for panel or gas meter placement to meet utility standards.

  • Application Management

    Preparation and submittal of SDG&E new service application.

  • Design Review

    Utility design review for conformance and accuracy.

  • Timeline Tracking

    Estimated utility timelines and construction dates coordination.

  • Pre-Construction Coordination

    Trenching and inspection scheduling with the construction team.

  • Final Connection

    Service connection completion and power is energized.

How much does it cost to build an ADU?

Each ADU project is unique, which means the pricing is too. Depending on factors such as:
ADU Type
Size
Location
Property Conditions
Final Product Finishes
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Discovering the potential

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Building an ADU can be life-changing; make sure you start the process with an accurate understanding of what to expect.

Our feasibility study provides options for your property, setting expectations and creating a smooth transition into the design phase. We gather all of the necessary information before anything is set in stone, avoiding last-minute calls of “Can I even place an ADU there?” or “Wait- is this even in budget?”

Your Trusted MDU Guide

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Our team comprises seasoned investors and developers who have faced the challenges of property development and emerged successfully. We’ve learned from our experiences and use that knowledge to guide you through your project.

With our expertise, you’ll navigate the journey with confidence. Ready to get started?

Schedule Your Free Consultation

Why a Prefab ADU?

A Pre-fabricated ADU is built off-site in a factory, then delivered and installed in your backyard. Prefab ADUs use streamlined, factory-controlled construction, standardized designs, and reduced on-site labor.

  • Faster Construction

    The estimated timeline to build a Pre-Fab ADU is ~3-4 weeks after permitting compared to an estimated timeline of 2-3 months for a traditional single-story ADU

  • Cost-Effective

    Prefab ADUs cost roughly 25-36% less per sqft than stick builds for material and labor costs

  • Sustainable

    Factory production optimizes materials, reducing excess waste

  • HUD-Certified

    Our Prefabs are federally certified by HUD so you can bypass state energy requirements for faster approvals.

  • Less On-Site Disruption

    Most of the work happens off-site, which means less noise, mess, and inconvenience at your property.

  • Quality Control

    Using repeatable processes and skilled teams, we deliver consistent craftsmanship and quality

ADU floor plans designed by experts

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Our floor plans are fully customizable to fit your style, space requirements, and goals. Explore some of our favorite ADU floor plans or create one from scratch with your design team.

Prefab floor plans

Every great space begins with a smart layout. Find the one that fits your life and set the foundation for what’s next.

Meet our Haven Series: Smart, stylish, and under 500 sq ft. Perfect for tight budgets and properties with limited space. Ideal as a guest suite, home office, or minimalist retreat.

* Floor plans that are under 500 sq ft avoid the school fees.

Meet our Nest Series: With 500-799 sq ft, the Nest Series offers the perfect balance of comfort and flexibility for small families, rental income, or multigenerational living.

Meet our Vista Series: Designed for those who love to live spaciously, the 800-999 sq ft Vista Series brings open-concept living, room to entertain, and space to grow.

Meet our Summit Series: At 1,000+ sq ft, the Summit Series delivers the feel of a full-sized home. Ideal for long-term living, aging in place, or creating you ultimate backyard sanctuary.

Make it yours: Customize every detail to reflect your style

With your layout in place, it’s time to make it uniquely yours. From finishes to fixtures, Adu Geeks helps you create a space that’s unmistakably you.

Prefab ADUs: Faqs

Still wondering if a Prefab ADU is right for you? You're not alone, and we're here to help. Our FAQ section breaks down the most common questions about Prefab units so you can move forward with confidence.

HUD vs. HCD Certification

HUD-certified prefab ADUs follow federal standards—meaning faster approvals and simpler energy compliance. HCD-certified units meet California codes but often require more complex reviews. ADU Geeks works with HUD-certified providers to streamline permitting.

Zoning & Size Limits

Prefab ADUs must meet local zoning rules, size limits, and setbacks. ADU Geeks handles all the checks to ensure your unit complies before moving forward.

Project Timeline

With permits in hand, prefab ADUs can be installed in just 3–4 weeks—much faster than traditional builds. ADU Geeks manages your project from start to finish to stay on schedule.

Cost Estimates

Most prefab ADUs cost about 25–36% less per square foot than traditional builds. We help you get a precise quote for your site.

Customization

While prefab ADUs aren’t fully custom, many offer flexible floor plans, finishes, and upgrade options. ADU Geeks helps match you with a design that suits your style and needs.

Transportation

A prefab unit is craned in when site access is limited or if it needs to be placed in an elevated or hard-to-reach location, while it’s rolled in when there’s clear, level ground and easy access for delivery.

Site Requirements

Prefab ADUs need a foundation, utility hookups, and delivery access. ADU Geeks oversees everything from grading to delivery logistics.

Post-Delivery Setup

After delivery, we handle utility hookups, inspections, and any final touches—staying involved through final sign-off so your ADU is truly move-in ready.

At ADU Geeks, we’re here to help you unlock your property’s full potential, transforming your vision into a profitable and impactful investment. Let’s Create something extraordinary together.

Bringing your vision to life

After the initial feasibility study for your new ADU is complete, you’ll move forward with our dedicated team who will bring your vision to life. From initial floorplan drawings to final finishes, our expert project coordinator will guide you through every step of the design process.

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Have the MDU Experts on Your Side

MDU projects can be complex, but with ADU Geeks, you have a team of experts to navigate these challenges alongside you.

We handle the complexities of code updates and efficient floorplans, ensuring your project not only meets but exceeds expectations. Our innovative designs create more than just buildings; they lay the foundation for thriving communities, maximizing your property’s potential and transforming your vision into reality.

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Have the MDU Experts on Your Side

MDU projects can be complex, but with ADU Geeks, you have a team of experts to navigate these challenges alongside you.

We handle the complexities of code updates and efficient floorplans, ensuring your project not only meets but exceeds expectations. Our innovative designs create more than just buildings; they lay the foundation for thriving communities, maximizing your property’s potential and transforming your vision into reality.

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Our Multi Dwelling Units in Action

Our projects showcase what’s possible. We've helped numerous clients transform properties, creating housing that uplifts neighborhoods. Now, it's your turn.

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Simplify the ADU design process

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Your property is unique; make sure your ADU is, too. Working with our team allows you to relax, knowing the final design will meet your vision, site-specific requirements, and local regulations.

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How much do ADU plans cost?
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Ensuring Easy Approval
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What are the different types of ADUs?
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Insurance Coverage
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What if I have my own ADU layout ideas?
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Let's get your Prefab ADU moving
Cut through red tape and start building in weeks — not months. Book a free discovery call to get expert guidance on your prefab project.
Book a Discovery Call