About Us Learn who we are, how we build, and why homeowners trust us with their ADU projects. ADU Process A step-by-step overview of how IMKAT takes your ADU from concept… to permits… to construction. Events / Open Houses Visit our build sites, tour completed ADUs, and meet the team in person. Careers Explore opportunities to grow your career with IMKAT.

ADU Retirement Units Comfortable backyard homes for aging loved ones. ADU for Investors Maximize rental income with high-ROI ADUs. ADU Financing Flexible financing options to fit your budget. Detached ADUs Private standalone backyard homes for any use. Tiny Home Builder Custom tiny homes built for smart, efficient living.

Pre-Construction Get expert design, engineering, and permit management — all handled by one coordinated team. ADU Design Custom floor plans, layouts, and elevations created to match your property and lifestyle. ADU Engineering Structural, Title-24, and code-accurate plan sets that ensure safety and faster approvals. ADU Permitting Complete permit management — submissions, revisions, resubmittals, and final approval handled for you.

1 Bedroom ADU Models Compact, efficient layouts perfect for guests or small rentals. 2 Bedroom ADU Models Maximize rental income with high-ROI ADUs. 3 Bedroom ADU Models Spacious models ideal for multi-gen living or high-value rentals. Duplex ADU Models Two independent units under one roof… perfect for investors or maximizing rental income. Customize Your ADU Fully personalize layouts, finishes, and features to match your vision. NEW Retirement ADU Models Senior-friendly plans focused on accessibility, comfort, and peace of mind.

Interior Design Packages Curated design packages to help you style your ADU interior with modern finishes, cohesive themes, and optimized layouts. Blogs Insights, guides, and tips to help you plan, build, and optimize your ADU project. FAQ Quick answers to the most common ADU questions — permitting, costs, timelines, requirements, and more.

What is a ADU? A Guide for California Homeowners - ADU Builder in Sacramento

What type of addition would you like to add?

Pick the option that best matches your property goals.

Detached ADU Attached ADU Garage Conversion

Detached ADU

Best for rental income or a private guest house — completely separate from your main home.

Attached ADU

Ideal for expanding your living area or creating an in-law suite with direct access.

Garage Conversion

Perfect for turning unused space into a studio, office, or small apartment at lower cost.

What's the estimated square footage of this addition?

Choose the option that’s closest to your plan — this helps us estimate your cost and timeline accurately.

Less than 300 sq ft

Ideal for compact studios or garage conversions.

300–500 sq ft

Great for one-bedroom units or small offices.

500–1,000 sq ft

Perfect for two-bedroom ADUs or guest houses.

1,000–1200 sq ft

Best for larger additions or multi-room family spaces.

More than 1200 sq ft

For custom large-scale extensions or dual-unit builds.

I don’t know yet

No worries, our team will help you estimate the right size during consultation.

What's your desired budget for your ADU project?

Your budget helps us match the right design options, materials, and construction approach for your ADU.

$150K and Under

Basic garage conversion or compact studio-sized ADU.

$150K–$199K

Ideal for small 1-bedroom ADUs with essential finishes.

$200K–$249K

Perfect for mid-sized 1–2 bedroom units with modern interiors.

$250K–$300K

Great for larger detached ADUs or premium build quality.

$350K+

Best for custom floor plans, luxury finishes, or multi-room units.

Do You Have Plans Drawn Up?

Let us know if you already have your ADU design ready or need help creating one.

Yes, I do have plans No, I would like help with plans

Yes, I already have plans

Great! Upload them later so we can review your layout and prepare an estimate faster.

No, I’d like help with plans

No problem our design team can guide you from concept to permit-ready blueprints.

Tell us a little about your project (optional)

Share any extra details that can help us understand your goals — like purpose, layout ideas, or who the space is for.

Project Details

What’s your name?

We’ll use this to personalize your estimate and follow up with your project details.

First Name*

Last Name*

Where should we send your quote?

We’ll use this to personalize your estimate and follow up with your project details.

Email*

Phone Number*

About Us

ADU Process

Events / Open Houses

Careers

ADU Retirement Units

ADU for Investors

ADU Financing

Detached ADUs

Pool House ADUs

Tiny Home Builder

1 Bedroom ADU Models

2 Bedroom ADU Models

3 Bedroom ADU Models

Duplex ADU Models

Customize Your ADU

Retirement ADU Models

ADU Design

ADU Engineering

ADU Permitting

Interior Design Packages

Blogs

FAQ