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The price per square foot provided is an average and may vary depending on project-specific details such as materials, location, complexity, and other factors. Actual costs may differ from the average provided.
It is recommended to obtain a detailed quote based on the specific requirements of your project.
Please note that the monthly payment displayed on this page is an estimate and is subject to variation based on the selected loan product, applicants credit score, loan amount, and other financial details. Actual monthly payment may differ from the estimate provided.
It is recommended to seek advice from a financial advisor or loan officer to obtain precise payment information tailored to individual circumstances.
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Visit our Designer Showroom to review the quote and designs, and sign the contract to start your project.
We expertly manage all permits and planning, ensuring a seamless start to construction.
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Free Financing Consultation
for Homeowners
Looking to build an ADU or tackle another home improvement project? As a trusted California contractor with over 30 years of experience, we’ll help you explore financing options while safeguarding your FICO scores and data. Count on us as your ally, working closely with reputable lenders and California’s largest credit unions to find the best financing solution for your needs.
California homeowners may also qualify for the CalHFA ADU Grant Program, which provides up to $40,000 toward pre-development costs such as design, permits, site prep, and impact fees when funding is available. Learn more on our financing page.
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ADU construction costs in Yuba City typically range from $110,000 to $290,000, depending on size, layout, and site conditions.
| ADU Type | Size | Typical Cost |
|---|---|---|
| Studio ADU | 150–450 sq ft | $110,000 – $140,000 |
| 1-Bedroom ADU | 300–800 sq ft | $125,000 – $210,000 |
| 2-Bedroom ADU | 450–1,000 sq ft | $145,000 – $275,000 |
| 3-Bedroom ADU | 750–1,200 sq ft | $210,000 – $290,000 |
Want numbers for your property? Estimate your Yuba City ADU project in a few clicks.
Final pricing depends on several factors, including site preparation, utility hookup fees, design complexity, and material selections. In some cases, ADUs under 750 sq ft may qualify for impact fee exemptions, which can reduce overall project costs.
A+ Construction provides detailed, property-specific estimates so you understand exactly what your project will require before moving forward.
Most ADU projects in Yuba City take 6 to 10 months from start to finish, depending on permitting timelines and project complexity.
| ADU Project Stage | What Happens During This Phase | Timeline |
|---|---|---|
| ADU design and planning | Site feasibility analysis, zoning review, initial layouts, and budget planning | 3–6 weeks |
| ADU plans and engineering | Drafting plans, structural engineering, and Title 24 documentation | 4–8 weeks |
| ADU permit approval | Plan review, corrections, and final permit approval | 2–4 months |
| ADU construction | Site work, foundation, framing, utilities, inspections, and final completion | 3–4 months |
A+ Construction manages each stage of the process and works directly with local agencies to keep projects moving and minimize delays.
More and more people nowadays are interested in constructing an ADU on their property. The term ADU means “Accessory Dwelling Unit.” Usually, it’s a small structure situated apart from your house with a bedroom, a bathroom, and a kitchen. You can live there in an ordinary house. Such a unit can be built completely from scratch or made from an already existing building.
It’s important to notice that ADUs can be very different. Some of them are created from old garages, and others are built from scratch in backyards. But any ADU, no matter what type it is, should contain one or more bedrooms. Also, they can have a bathroom, a kitchen, and so on. Many ADUs are divided into several zones.
An ADU can serve as a granny flat, giving you the possibility to care for your elderly parents or grandparents whenever they need it.
To make your ADU warmer in the winter season, consider installing a heating system inside of it. Even better if it’s connected to the central heating. Another good variant is to place a compact heater there or even a real fireplace.
In case you plan to make a granny flat for your elderly relatives, and at least one of them is wheelchair-bound, you’ll need special access provided to make it easier for this person to enter.
Lots of people fear constructing an ADU on their property since they suppose that it will be too large, expensive, or simply not needed. Of course, such a project will bring several inconveniences, but in the long run, it will be completely worth it.
To make things clear, we’d like to talk about the main pros and cons of building an accessory dwelling unit on your property — either an attached ADU or a detached ADU.
Accessory dwelling units have lots of advantages. Here you can see the most important of them:
But despite all of this, ADUs also have some drawbacks that the property owner needs to keep in mind before hiring a general contractor and ordering the construction.
The A+ general contractor company provides great solutions for constructing comfortable and convenient ADUs. Our skillful professionals know everything about their construction, its rules, and regulations. Moreover, we’ll help you to choose every material and get all the needed permissions required for the project.
Constructing any accessory dwelling unit, either an attached or a detached one, can be rather difficult — a simple cosmetic redesign of anything already existing is not enough. You’ll need such things as a new foundation, construction of walls, installed electric and plumbing systems, an attractive design, and plenty of others.
It means that such work projects require a lot of time, a wide range of skills, and special equipment. There’s a high possibility that you’ll make many mistakes that will significantly increase the cost of the construction and worsen its quality. So, it’s way better to hire a professional general contractor or an architect who will make everything as it should be.
Another thing that makes ADU construction so tricky is legal regulations. The owner will have to read tons of complicated laws that define every aspect – the biggest allowed size and height, parking places, and hundreds of other required things.
If you hire A+ general contractor to construct an accessory dwelling unit, you’ll get a team of skillful specialists with professional equipment that will fulfill all of your wishes. You’ll be provided with a high-quality, stylishly-designed construction that will meet all the requirements of Yuba City, from legal to fire safety.
Finding a really great, qualified general contractor is not easy. To do it, you’ll need to pay attention to several important things.
The main ones of them are:






In case you are searching for a great general contractor, we recommend you check out A+ Construction & Remodeling. This company constructs all types of granny flats, or ADUs, allowed in Yuba City. Its managers will take into account all of your wishes and ideas, even the most unusual ones, and create a wonderful ADU on your property.
A+ Construction & Remodeling has all the needed documents that confirm the excellent quality of its work. Also, this general contractor can boast an impressive, regularly updated portfolio and a whole community of loyal, satisfied customers. It can estimate all the potential costs of your project completely for free, which is an extremely helpful feature.
Below, you can read about the main services that are provided by this company.
Aside from ADU construction in Yuba City, we also do kitchen and home remodeling projects (also with a free estimate, of course). We do the installation of countertops, fixtures, and other required steps.
Every accessory dwelling unit in Yuba City needs a building permit. Applications are reviewed by the Sutter County Building Inspection Division, which checks your plans against California’s statewide ADU law and the local zoning, building, and fire codes for Sutter County. As a full design-build contractor, A+ Construction & Remodeling prepares the drawings, structural calculations, and Title 24 energy documents, then submits and manages the permit on your behalf so you don’t have to navigate the counter alone.
Under current California rules, most ADUs are approved ministerially - meaning no public hearing - and the jurisdiction must act on a complete application within 60 days. Key statewide standards that apply in Yuba City include:
Local factors in Sutter County - such as septic vs. sewer connections, fire-hazard zones, well water, slope, and utility upgrades - can still affect your design, timeline, and cost. We evaluate these during a free site review and build them into your estimate up front, so your permit moves through the Sutter County Building Inspection Division without surprises.
Ready to start? Get a detailed number with our ADU cost calculator, review your funding options on our financing page, or see all the communities we serve on our ADU builders page.