Santa Rosa ADU Builder
Custom ADU Builders
in Santa Rosa, California
- 30+ Years Combined Experience
- Licensed, Bonded, and Insured
- 200+ ADUs Built
We Build ADUs in Santa Rosa
Searching for a reliable ADU contractor and builder in Santa Rosa? IMKAT Homes is your trusted local expert in Accessory Dwelling Unit (ADU) design and construction. From custom granny flats to rental-ready backyard homes, we offer full-service solutions — including design, permitting, and construction — tailored to fit your budget and lifestyle.
MODELS
ADU Models in Santa Rosa
Secondary Homes from 328 SQFT to 1,200 SQFT
Why Build an ADU in Santa Rosa?
- Increase Property Value – ADUs enhance your home’s market appeal.
- Earn Passive Income – Rent your ADU as a short-term or long-term unit.
- Multigenerational Living – Create a private space for aging parents or young adults.
Reviews
What our clients say
Why Build an ADU in Santa Rosa?
See why 1,000s of home owners are building ADUs
The Perfect Retirement Plan
Get 3 Months of Assisted Living on Us
Increase Living Space
Expand living space up to
1,200 SQFT
The Perfect Retirement Plan
Thousands of retirees
are choosing an ADU over
expensive retirement homes
in California
Types of ADUs We Build in Santa Rosa
We build all types of ADUs in Santa Rosa — including attached units, detached backyard homes, and garage conversions — designed to fit your lot, needs, and budget.
Attached ADUs
Built as an extension of your existing home, attached ADUs blend seamlessly with your layout while adding valuable square footage.
Detached ADUs
Standalone backyard homes that offer privacy, flexibility, and full living space — perfect for rentals or extended family.
Garage Conversions
Transform your existing garage into a livable, code-compliant unit ideal for guests, tenants, or a home office.
No Cookie Cutter ADUs Here - Each One is Uniquely Yours
Projects
Recently Finished ADUs
Pleasanton ADU Regulations Made Simple
Constructing an Accessory Dwelling Unit (ADU) in Pleasanton, California, requires following local zoning laws and building regulations to ensure a smooth approval process. Here’s a quick overview of the key ADU requirements in Pleasanton:
Maximum ADU Size in Pleasanton
Maximum size for an ADU in Pleasanton is 1000 SQFT
Setback Rules
Newly constructed detached ADUs must have minimum side and rear yard setbacks of at least four feet.
Parking Requirements
One additional off-street parking space on the lot must be made continuously available to the occupants of the ADU.
Owner Occupancy
JADUs: For properties with a JADU, the property owner is required to occupy either the JADU or the primary residence.
Height Limits
Detached ADUs in Pleasanton can reach a maximum height of 16 feet. Attached ADUs must adhere to the height restrictions of the underlying zoning district.
ADU Zoning
I your ADU is larger than 800 square feet, it must follow additional zoning rules — including floor area ratio limits, open space requirements, and other development standards based on your property’s zoning or planned unit development (PUD),
Why Us?
Why Build with Imkat Homes?
Santa Roasa’s #1 ADU Builder
General Contractors
Other ADU Contractors
Specializing in ADUs
ADU Built in Just 8 Months
Financing
3 Months of Free Assisted Living for Retirees
Over 200+ ADUs Built
General Contractors
Other ADU Contractors
Specialize in ADUs
Free Assisted Living
Financing
200+ ADUs Built
Why Santa Rosa Homeowners Trust Imkat Homes for ADUs
At IMKAT Homes, we’re a leading ADU builder and contractor in Santa Rosa, specializing in high-quality Accessory Dwelling Units designed to meet local zoning laws and your lifestyle needs. Our expert team handles everything from permitting to construction, ensuring your ADU adds value, blends with your home, and meets all Santa Rosa regulations
Expertise in Santa Rosa ADU Regulations
Navigating Santa Rosa’s zoning laws, permitting, and setback requirements can be complex. Our team has extensive experience with City of Santa Rosa ADU guidelines, ensuring a smooth approval process and efficient construction.
Custom ADU Designs for Every Property
We believe every homeowner has unique needs. Whether you want a modern studio, a cozy guesthouse, or a rental-ready unit, we create a custom ADU that fits your lifestyle and property layout.
Turnkey Solutions from Start to Finish
From planning and permitting to construction and final touches, Imkat Homes handles every step. We provide a hassle-free, end-to-end ADU building experience so you can enjoy your new space without stress.
Affordable, High-Quality Construction
We focus on cost-effective yet durable ADU solutions. By using top-quality materials and advanced building techniques, we ensure your ADU is built to last while staying within your budget.
Secure Your Future With Imkat Retirement ADUs
A Better and Cheaper Solution to Retirement
FAQ
Frequently Asked Questions About ADUs in Santa Rosa
Everything You Need to Know About Building an ADU: Costs, Permits, Benefits, and More
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.
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.
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.
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.
The entire ADU process typically takes 6 to 12 months, with construction lasting around 3-4 months.
- Permitting & Design: 3-6 months
- Construction: 3-4 months
Our team will help navigate permits and ensure a smooth, efficient build
Yes! ADUs can be rented long-term (30+ days). Short-term rentals (Airbnb) may be restricted based on city rules.
- 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.
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.
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.
Yes! We partner with RenoFi to offer financing options for your ADU project.
Learn More Here