Accessory Dwelling Unit ventura & la county
CUSTOM ADU DESIGN & CONSTRUCTION
Life can be unexpected, and you might find yourself in a situation where you require more living space than you already have. However, moving out and finding a new home may not be the solution you wish to proceed with. Instead, an accessory dwelling unit (ADU) can be what you need.
RnD Builders are ADU experts, with over a decade of experience and an extensive portfolio of completed projects. Serving West Hills, Woodland Hills, Thousand Oaks, & the Greater Los Angeles Area, RnD Builders can create a usable, flexible space to suit your needs.
The RND Builders
ADU Process
Initial Walk-Through & On-Site Consultation
Before any plans are drawn and designs started, RND Builders sets up an initial consultation & walk-through of your property. We want to understand your goals and vision for your ADU construction and address any concerns regarding the timeline and budget for the project. We aim for transparency between you and our staff and focus on communication to ensure you are in the loop with your project.
Design, Fixtures, Materials
With the initial consultation completed, the next phase is creating the design for the ADU. You’ll meet with an expert from the RnD Builders design team to go over the ADU design, function, and planned use. We’ll discuss the space layout and how to optimize it for your intended use, whether it’s an extra bedroom, a new office space, or a standalone ADU living space.
We’ll also discuss other details, such as lighting fixtures, flooring, plumbing, and more. We focus on using top-of-the-line fixtures and working with reputable brands so you can be confident that you are getting the best quality in all aspects of the project.
After the design session, our design team will send you a working 3D model to see how the finished design will look in the space. You can also make changes and adjustments to the model, which will be updated until the design is finalized.
Building Phase
Once the design is finalized, we can begin work on your ADU. During this phase, RND Builders will assign a dedicated project manager as the main point of contact between you and the RND Builders team. The project manager will be able to answer any concerns and relay those concerns to the RND Builders staff, as well as give updates regarding the status, budget, and project timeline. Former RnD Builders clients continue to come back and work with us because they trust our process. We guarantee your ADU will be finished in 3 months.
Accessory Dwelling Unit Gallery
How Long Does ADU Construction Take?
RND Builders guarantees that your ADU will be finished within 3 months of the first day of construction. When the design is finalized, your dedicated project manager will provide a personalized timeline for the project and an estimated finish date. The timeline and finish date will also be updated based on other variables, such as the availability of materials, local building codes, and contractor availability.
How Much Does an ADU Cost?
The cost of ADU construction varies from project to project, as each project is different in size and scope. Several of the main factors that influence price include materials, fixtures, and appliances. Based on the on-site interview and initial plans, we can provide a personalized quote with transparent breakdowns of each cost element.
Reasons to Start ADU Construction with RnD Builders
- Access to a selection of high-demand materials.Â
- We handle all the permits and building code requirements.Â
- Increase the value of your home.
- Dedicated project managers that serve as contact points for both parties.
What Is an Accessory Dwelling Unit (ADU)?
An Accessory Dwelling Unit, or ADU for short, is an additional unit on a single-family property that may or may not be attached to the main building. These ADUs are fully independent living spaces equipped with their own electrical sub-panel, air-conditioning and heating unit, plumbing and hot water unit, kitchen, and bathroom. RnD Builders has completed many ADU projects across West Hills, Woodland Hills, Thousand Oaks & the Greater Ventura County Area. The ADU projects range from small garage conversions to an independent, standalone unit on the property of the main building.
What's the Difference between an ADU & Garage Conversion?
Ready to start your project?
Schedule a consultation meeting today and get your project on the go!
We are glad to address any inquiries you may have. Please write us a few words about your project and we’ll set up a meeting with one of our project managers.
Expert ADU Construction in the Greater Los Angeles Area.
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ADU FAQs
Yes, all ADU projects will require a permit for compliance with local regulations. We know local codes, safety standards, and California ADU laws inside out. That means you can sit back and let us handle the entire process. Our local expertise means we can quickly obtain the required permits by keeping designs in line with regulations. When it comes to permits, expect no delays.
Zoning requirements will vary across the cities we service. However, we are well-versed in the regulations of each of our service areas. In general, most municipalities have ADU-specific regulations, but we handle the whole clearance process. Some of the approvals we factor into our designs include:
- That the ADU legally fits on your property
- That ADU height is within limits
Properties governed by a Homeowners Association (HOA) will have unique restrictions. California state law supports ADU construction, but your HOA regulations will need to be met. We go over your HOA’s individual rules when drafting designs to ensure your ADU meets requirements for:
- Exterior design and finishes
- Placement on the property
- Landscaping and areas
- And anything else
California weather permits ADU construction year round with minimal interruptions. Each season can suit ADU construction, though individual advantages include:
- Spring and Summer: Longer days and predictable weather for easier ADU construction.
- Fall: Balanced weather and availability.
- Winter: More availability, but rain could cause delays.
The $40,000 California ADU grant was offered through the CalHFA (California Housing Finance Agency) ADU Grant Program. It helped eligible homeowners cover early building costs like architectural designs, permits, soil tests, site preparation, and energy reports.
The best part — it was a free grant, not a loan. No repayments, no interest.
Please note: This grant funding was fully used up in late 2023 and is not currently accepting new applications. However, some local city programs in the Los Angeles area may still offer financial help for ADU projects.
At Rnd Builders Inc, we help you find the best available options before you start building.
ADUs are a smart investment, but there are a few things to keep in mind:
- High upfront costs — Building an ADU requires a significant budget for construction and permits
- Zoning and permit rules — Local regulations can be confusing and time-consuming to navigate
- Higher property taxes — Adding an ADU increases your home’s value, which may raise your tax bill
- Insurance gaps — Standard home insurance often doesn’t cover ADUs, so extra coverage may be needed
- Utility upgrades — New water, sewer, and electrical connections can add unexpected costs
At Rnd Builders Inc, we guide you through every step so you avoid costly surprises.
ADU costs in Ventura County depend on the type of unit you build:
- Garage Conversion: $90,000 – $120,000
- New Detached ADU: $100,000 – $400,000
- Permits & Soft Costs: $15,000 – $40,000 (added on top)
Costs vary based on lot size, soil conditions, finish quality, and utility connections. Connecting new water, sewer, and electrical lines alone can add $10,000 to $35,000 to your budget.
Rnd Builders Inc serves homeowners across Los Angeles and Ventura County with honest, upfront pricing and no hidden fees.
Here’s a simple breakdown of ADU size limits in Los Angeles County:
- Detached ADU: Up to 1,200 sq ft
- Attached ADU: Up to 50% of the main home or 1,200 sq ft (whichever is less)
- Junior ADU (JADU): Maximum 500 sq ft (must be inside the existing home or garage)
Detached ADUs can generally be built up to 16 feet tall, with allowances up to 25 feet in certain zones. ADUs under 750 sq ft are exempt from local impact fees, which can save you thousands.
Rnd Builders Inc helps Los Angeles homeowners make the most of every square foot — from permits to final inspection.
Start With a Consultation and Quote
Are you ready to start working with RnD Builders to build your ADU? RnD Builders is a leading full-service renovation contractor with an in-house custom cabinet fabricator. We service clients who want an accessory dwelling unit in West Hills, Woodland Hills, Thousand Oaks & other neighborhoods in the Greater Ventura County Area. Call us to set up your free in-home consultation with one of our design professionals and start on your ADU project soon.
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