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.

Pre Planned - ADU Builder in Sacramento

City of Sacramento–Approved Plans

Build Your ADU Faster with Pre-Approved Sacramento Plans

Skip lengthy design and permitting timelines with Sacramento’s Shelf-Ready ADU Plans. These city-approved designs meet all 2022 Residential Building Code requirements, helping you move from approval to construction in as little as 45 days with IMKAT.

Accelerated Permitting: Pre-approved plans reduce review time and eliminate design delays.
Start Construction Sooner: Move from approval to build in as little as 45 days.
Code-Compliant Designs: Fully aligned with Sacramento’s 2022 Residential Building Code.
Streamlined Process: Fewer revisions. Clear requirements. Faster approvals.

Why Shelf-Ready ADU Plans

What Are Shelf-Ready ADU Plans?

Shelf-Ready ADU Plans are pre-approved by the City of Sacramento for detached accessory dwelling units. These professionally designed plans meet local building codes, are all-electric, and streamline the permitting process—saving homeowners time and cost.

City-Approved Designs

Fully compliant with the 2022 Residential Building Code

Faster Permitting

Reduce approval timelines and avoid design delays

All-Electric ADUs

Built to meet modern energy standards

Proven Layouts

Designed for functionality, comfort, and efficiency

Available Locations

Explore Pre-Approved ADU Plans by City

Select your city to view available pre-approved ADU floor plans designed to meet local building requirements.

Sacramento ADU Plans

Browse Sacramento’s city-approved ADU floor plans. Compare layouts, explore designs, and download detailed PDFs to start your project with confidence.

San Jose ADU Plans

Explore pre-approved ADU floor plans tailored to San Jose regulations, with layouts designed for efficiency and compliance.

How It Works

From Pre-Approved Plans to Construction

Our streamlined process helps you move from selecting a plan to starting construction with clarity and confidence—without unnecessary delays.

Choose Your Plan

Select a Sacramento-approved ADU design that aligns with your property, budget, and goals.

Site Evaluation

Our team reviews your property to confirm feasibility, placement, and compliance with local requirements.

Permit Submission

We prepare and submit your plans along with required site details, helping accelerate approvals and minimize revisions.

Start Construction

Once approved, construction begins—often in as little as 45 days.

Permit Submission

We prepare and submit your plans along with required site details, helping accelerate approvals and minimize revisions.

Start Construction

Once approved, construction begins—often in as little as 45 days.

Things to Know

What to Know Before You Build

Pre-approved ADU plans are designed to simplify and speed up the process. To ensure a smooth experience, there are a few important guidelines to keep in mind.

Fixed Plan Designs

These plans are pre-approved and cannot be modified, helping avoid delays and keep approvals fast

Site Plan Still Required

A site plan must be submitted to show ADU placement and ensure compliance with your lot

Mirroring Is Allowed

Layouts may be flipped to better fit your property configuration

Detached ADUs Only

These plans are specifically designed for detached accessory dwelling units

All-Electric Design

Each plan is built to meet modern energy standards and Sacramento requirements

Guided by IMKAT

Our team supports you through permitting, approvals, and construction from start to finish

Growing Coverage

Available in Sacramento Expanding to More Cities

Our pre-approved ADU program is currently available for Sacramento homeowners, with additional city-specific plans for San Jose and other California markets coming soon. Each city has its own approved designs and requirements—and IMKAT will guide you through the process every step of the way.

Frequently Asked
Questions About ADUs

Everything you need to know about building, pricing, and designing your backyard ADU with IMKAT. Whether you’re just starting or ready to build these answers cover it all.

Didn’t find your answer?

What are the benefits of building an ADU?

ADUs offer several advantages:

Affordable Housing: They provide an affordable housing option without the need for purchasing additional land or major new infrastructure.
Additional Income: Homeowners can generate rental income by leasing the ADU.
Family Flexibility: ADUs allow extended families to live close together while maintaining privacy.
Efficient Use of Space: They make use of underutilized spaces, enhancing property value and utility.

Do ADUs require separate utility connections?

ADUs can share utilities with the main home or have separate meters. Some cities require separate sewer and water connections. Our ADU consultants will assess your electrical panel to determine if it can support your ADU or if an upgrade is needed.

How much does it cost to build an ADU in California?

Our costs range from $125,000 to $300,000+, depending on size, location, and materials. Garage conversions are typically the cheapest, while detached ADUs are the most expensive.

View some of our models and consult with our ADU specialists for pricing.

Our pricing does not include utilities and permits as they vary by property.

What permits are required for an ADU in California?

Permits are required for construction, zoning, and utilities. The permit process takes 3-5 months and varies by city. California law requires cities to approve or deny ADU applications within 60 days.

Can I rent out my ADU?

Yes! ADUs can be rented long-term (30+ days). Short-term rentals (Airbnb) may be restricted based on city rules.

What are California’s size limits for ADUs?

Detached ADUs: Up to 1,200 sq. ft.
Attached ADUs: Up to 50% of the primary home’s size (or 800 sq. ft., whichever is larger).
JADUs: Max 500 sq. ft.

Detached ADUs: Up to 1,200 sq. ft.
Attached ADUs: Up to 50% of the primary home’s size (or 800 sq. ft., whichever is larger).
JADUs: Max 500 sq. ft.

Be aware that ADU size limits may vary by county and are subject to local zoning regulations. For exact requirements, consult your county officials or speak with one of our representatives for more information.

Can I sell an ADU separately from my home?

Generally, no—ADUs are part of the main property. However, California’s SB 9 law allows lot splits in certain cases, which may enable separate ADU ownership.

For more details, check with your local planning department or contractor.

How do ADUs impact property taxes?

In California, adding an ADU increases property taxes only on the new unit, not the main home. The tax hike is typically 1–1.5% of the ADU’s assessed value. For a $200K ADU, expect an annual increase of $2K–$3K. Prop 13 caps future annual increases at 2%. Consult your county assessor for exact details.

Do you provide financing?

Yes! We partner with RenoFi to offer financing options for your ADU project.

Learn More Here

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

Build Your ADU Faster with Pre-Approved Sacramento Plans

What Are Shelf-Ready ADU Plans?

City-Approved Designs

Faster Permitting

All-Electric ADUs

Proven Layouts

Explore Pre-Approved ADU Plans by City

Sacramento ADU Plans

San Jose ADU Plans

From Pre-Approved Plans to Construction

Choose Your Plan

Site Evaluation

Permit Submission

Start Construction

Permit Submission

Start Construction

What to Know Before You Build

Fixed Plan Designs

Site Plan Still Required

Mirroring Is Allowed

Detached ADUs Only

All-Electric Design

Guided by IMKAT

Available in Sacramento Expanding to More Cities

Frequently AskedQuestions About ADUs

About Us

ADU Process

Events / Open Houses

Careers

ADU Retirement Units

ADU for Investors

ADU Financing

Detached ADUs

Tiny Home Builder

Pre-Construction

ADU Design

ADU Engineering

ADU Permitting

1 Bedroom ADU Models

2 Bedroom ADU Models

3 Bedroom ADU Models

Duplex ADU Models

Customize Your ADU

Retirement ADU Models

Interior Design Packages

Blogs

FAQ

Frequently Asked
Questions About ADUs