ADU Builder in Simi Valley
Safeway Construction is Simi Valley's full-service ADU builder. From Wood Ranch and Rancho Simi to Sinaloa Lake and the Madera Road area, we design, permit, and build accessory dwelling units that add living space, rental income, and long-term value to your property. With over 20 years of experience and a 5.0-star Google rating, we manage every step of your ADU project so you don't have to. Eligible homeowners can take advantage of the CalHFA $40,000 ADU grant to help offset costs.
Licensed ADU Builders in Simi Valley
Simi Valley properties are ideal for accessory dwelling unit construction. The city's generous lot sizes, especially in Wood Ranch and the Rancho Simi areas, provide ample space for detached ADUs, attached additions, garage conversions, and junior ADUs. Whether you want a standalone guest house in your backyard, a unit attached to your existing home, a full garage conversion, or a compact junior ADU, Safeway Construction has the expertise to deliver a high-quality result that meets your goals and your budget.
California ADU law has made it easier than ever for Simi Valley homeowners to add accessory dwelling units to their properties. The City of Simi Valley Building and Safety Department at 2929 Tapo Canyon Road requires building permits for all ADU types, and the review process involves plan checks, utility coordination, and multiple inspections. Our team stays current on every state and local regulation, including recent legislation like SB 1211, and handles the entire permitting process on your behalf so you never have to visit city hall or chase down approvals.
As a Simi Valley-based contractor with over 20 years of experience in residential construction, Safeway Construction has earned the trust of homeowners who want their ADU built right the first time. From foundation work to finish carpentry, every detail is handled by our experienced team. Our 5.0-star Google rating with 17+ reviews reflects the quality and reliability that our neighbors have come to expect.
Types of ADUs We Build in Simi Valley
Detached ADUs
A standalone structure built separately from your main home, perfect for a guest house, rental unit, or multigenerational living space. Detached ADUs in Simi Valley can be built up to 1,200 square feet and offer complete privacy for occupants. Especially popular on the larger lots in Wood Ranch and Rancho Simi where yard space accommodates a separate structure.
Attached ADUs
An addition connected directly to your existing Simi Valley home, sharing at least one wall. Attached ADUs are an efficient way to add living space without building an entirely separate structure. They integrate seamlessly with your home's existing architecture and utilities, making them a cost-effective choice for homeowners throughout Simi Valley.
Garage Conversions
Transform your existing garage into a fully functional living space. Garage conversions are one of the most cost-effective ADU options for Simi Valley homeowners because the basic structure is already in place. We handle structural upgrades, insulation, plumbing, electrical, and finishing. A popular choice across Rancho Simi, the Madera Road area, and Santa Susana Knolls.
Junior ADUs
Built within the existing footprint of your Simi Valley home, junior ADUs are capped at 500 square feet and must include a separate entrance and a small cooking facility. They are an affordable way to create an independent living space without expanding your home's footprint, ideal for homeowners on smaller lots or those looking for a lower-cost ADU option.
ADU Grants & Legislation for Simi Valley Homeowners
CalHFA ADU Grant: Up to $40,000
The California Housing Finance Agency CalHFA ADU Grant Program provides up to $40,000 to help homeowners offset the cost of building an ADU. The grant covers pre-development costs such as architectural plans, permits, engineering, soil tests, and site preparation.
Available to owner-occupants on a first-come, first-served basis. Simi Valley homeowners who live in their primary residence and meet income and property requirements are eligible to apply.
Safeway Construction helps clients navigate the CalHFA application process, prepare required documentation, and coordinate with the program to maximize your chance of receiving the full grant amount.
SB 1211: Streamlined ADU Approvals
SB 1211 is California legislation that further streamlines ADU construction by limiting the ability of local jurisdictions to impose overly restrictive rules. It reinforces state-level ADU standards around setbacks, height limits, and lot coverage.
For Simi Valley homeowners, SB 1211 means a more predictable and streamlined permitting process. The legislation makes it harder for cities to deny compliant ADU projects and reduces barriers for homeowners who want to add a dwelling unit to their property.
Safeway Construction stays current on all state legislation and local building codes. We ensure your ADU project is designed and submitted in full compliance with the latest regulations for the fastest possible approval from the City of Simi Valley.
Why Simi Valley Homeowners Choose Safeway for ADU Construction
Full Permit Management
We handle every aspect of the Simi Valley ADU permitting process, from preparing architectural plans and engineering documents to filing applications with the City of Simi Valley Building and Safety Department at 2929 Tapo Canyon Road and coordinating all inspections. You never have to set foot in a planning office.
California ADU Law Expertise
Simi Valley ADU regulations align with California state ADU law, allowing units up to 1,200 square feet with specific setback, height, and parking requirements. Our team maintains up-to-date knowledge of both state laws including SB 1211 and city building codes so your project stays fully compliant from day one.
Design-Build Under One Roof
From initial design concepts and 3D renderings to construction and final walkthrough, everything is managed by one team. This eliminates miscommunication between designers and builders, keeps your Simi Valley ADU project on budget, and streamlines the entire timeline from permits to move-in.
Your Local ADU Builder
We are based right here in Simi Valley. That means faster response times, frequent site visits, and a team that has been building in this community for over 20 years. We know the local building department, the soil conditions, the utility infrastructure, and the neighborhoods where ADUs deliver the strongest return on investment.
Simi Valley ADU Construction Cost Ranges
ADU costs in Simi Valley depend on the type, size, finishes, and site conditions. Here are typical price ranges for ADU projects across the city. Get a personalized estimate in 2 minutes at SafewayQuickQuote.com.
Junior ADU
$50,000 - $100,000
Garage Conversion
$90,000 - $150,000
Attached ADU
$150,000 - $250,000
Detached ADU
$200,000 - $250,000+
ADU Regulations in Simi Valley
Understanding local ADU regulations is essential before starting your project. Here are key rules under California ADU law and City of Simi Valley requirements that apply to ADU construction.
Maximum Size: 1,200 Square Feet
Detached ADUs in Simi Valley can be built up to 1,200 square feet on most standard residential lots. Attached ADUs may be limited to 50 percent of the existing living area or 1,200 square feet, whichever is less. Junior ADUs are capped at 500 square feet and must be built within the existing footprint of the home.
Setback Requirements
ADUs in Simi Valley must maintain a minimum 4-foot setback from side and rear property lines. Front setback requirements follow standard zoning rules for your lot. Garage conversions that use the existing footprint may be exempt from some setback requirements under California state ADU law.
No Owner-Occupancy Requirement
Under current California state law, there is no owner-occupancy requirement for most ADUs in Simi Valley. This means you do not have to live on the property to rent out your ADU, making it a flexible investment option for property owners in Wood Ranch, Rancho Simi, Sinaloa Lake, the Madera Road area, and across the city.
Parking Requirements
California state ADU law has significantly relaxed parking requirements for accessory dwelling units. Replacement parking is generally not required when converting a garage to an ADU, and new ADUs located within a half mile of public transit may be exempt from additional parking requirements. Our team evaluates your specific situation during the design phase.
Local Permits and Inspections
All ADU construction in Simi Valley requires building permits from the City of Simi Valley Building and Safety Department at 2929 Tapo Canyon Road. The process includes plan check review, building permits, and multiple inspections throughout construction. Safeway Construction manages the entire permitting process from application through final sign-off, ensuring full compliance with both city codes and California ADU law.
ADU Construction FAQs for Simi Valley Homeowners
How much does it cost to build an ADU in Simi Valley?
ADU construction costs in Simi Valley vary by type. Garage conversions typically range from $90,000 to $150,000 since the basic structure already exists. Attached ADUs that share a wall with your home usually cost between $150,000 and $250,000. Detached ADUs, which require a full foundation and independent utility connections, generally run from $200,000 to $250,000 or more. Junior ADUs built within the existing footprint of your home cost $50,000 to $100,000. Final pricing depends on unit size, finish quality, site conditions, and utility infrastructure. Visit SafewayQuickQuote.com to get a free personalized estimate for your Simi Valley ADU project.
What ADU size is allowed on my Simi Valley property?
Under current California ADU law, detached ADUs in Simi Valley can be built up to 1,200 square feet on most residential lots. Attached ADUs may be limited to 50 percent of the existing living area or 1,200 square feet, whichever is less. Junior ADUs, which are created within the existing footprint of the home, are capped at 500 square feet. Setback requirements include a minimum of 4 feet from side and rear property lines. These regulations apply throughout Simi Valley, including Wood Ranch, Rancho Simi, Sinaloa Lake, and the Madera Road area. Safeway Construction evaluates your specific lot and helps you maximize the size and functionality of your ADU within current regulations.
How long does it take to build an ADU in Simi Valley?
Most ADU projects in Simi Valley take between 4 and 7 months of construction once permits are approved. The permitting process with the City of Simi Valley Building and Safety Department typically adds another 2 to 4 months depending on project complexity. Garage conversions tend to be on the shorter end, while detached ADUs with full foundations and utility connections take longer. Safeway Construction manages the entire process from initial design through final inspection, including all permitting, plan reviews, and inspections with the City of Simi Valley.
What is the CalHFA ADU grant and do Simi Valley homeowners qualify?
The California Housing Finance Agency CalHFA ADU Grant Program provides up to $40,000 to help homeowners offset the cost of building an ADU. The grant is available to owner-occupants on a first-come, first-served basis and can be used for pre-development costs such as permits, architectural plans, engineering, and site preparation. Simi Valley homeowners who live in their primary residence and meet program requirements are eligible to apply. Safeway Construction helps clients navigate the grant application process and coordinates the required documentation to maximize your chance of approval.
What is SB 1211 and how does it affect ADUs in Simi Valley?
SB 1211 is California legislation that further streamlines ADU construction by limiting the ability of local jurisdictions to impose overly restrictive rules on accessory dwelling units. It reinforces state-level ADU standards around setbacks, height limits, and lot coverage, making it harder for cities to deny compliant ADU projects. For Simi Valley homeowners, SB 1211 means a more predictable and streamlined permitting process. Safeway Construction stays current on all state legislation and local regulations to ensure your ADU project is fully compliant and positioned for the fastest possible approval.
Do I need to live on the property to rent out my Simi Valley ADU?
Under current California state ADU law, there is no owner-occupancy requirement for most ADUs built in Simi Valley. This means you do not need to live on the property to rent out your accessory dwelling unit, making it a flexible investment for Simi Valley property owners. The law also eliminates replacement parking requirements for garage conversions and relaxes parking rules for ADUs near public transit. Safeway Construction stays current on all state and local ADU regulations to ensure your project is fully compliant and positioned for maximum return.
Ready to Start Your Remodel?
Two ways to get started — pick what works for you.
Request a Consultation
Fill out our form or call us. We'll get back to you within one business day.
Get an Instant Estimate
Use our AI tool to get a price range in 2 minutes. No phone call needed.
Try the Instant EstimatorFree. No sign-up required.