Folsom ADU Builders

California Serviced ZIP codes: 95630, 95762, 95763, 95671

Get your ADU FROM $799/month

    #25 in California’s Top list of the fastest private growing companies
    Awards Logos Best ADU Builder 2023 in California
    Awards Logos №1 Constraction Company in Sacramento
    Awards Logos #25 in California’s Top list of the fastest private growing companies
    Featured on Forbes Logo
    Featured on Forbes Logo
    Awards Logos Best ADU Builder 2023 in California
    Awards Logos №1 Constraction Company in Sacramento
    Awards Logos #25 in California’s Top list of the fastest private growing companies
    Featured on Forbes Logo
    Featured on Forbes Logo
    #1 General Contractor in California

    Folsom ADU Builders

    California Serviced ZIP codes: 95630, 95762, 95763, 95671
    Total Rating
    Total Rating
    Based on 826 reviews
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    Google Rating
    Based on 179 reviews
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    Based on 143 reviews
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    Yelp Rating
    Based on 81 reviews

    Folsom ADU Design & Build

    Exceptional turnkey services, from plans and permits to occupancy, that simplify ADU development and ensure your peace of mind.

    Studio ADU

    The 400 sq ft studio ADU offers an efficient open layout, seamlessly combining living, sleeping, and dining spaces. With a full bathroom and energy-efficient design, it's ideal for a minimalist lifestyle or an excellent rental opportunity.

    1-Bedroom ADU

    The 520 sq ft 1-bedroom ADU provides versatile living solutions. Ideal for long-term rentals, it offers a self-contained space for tenants or serves as a comfortable in-law suite, ensuring independence for extended family.

    2-Bedroom ADU

    The 570 sq ft ADU maximizes functionality with a full-size kitchen, two bathrooms, and two bedrooms, perfect for small families. Its thoughtful design optimizes every square foot for comfortable
    living and privacy.

    Custom ADU

    Tailor your living experience with our fully custom ADU option. Dictate the layout, size, and features to meet your unique needs, whether it's adapting to a growing family, crafting the perfect home office or building a rental unit.

    Cost Estimator

    Turnkey Custom ADU Calculator

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    The calculations are approximate, based on A+ Construction Big Data Research 2023 Ⓒ
    The calculations are approximate, based on A+ Construction Big Data Research 2023 Ⓒ

    Our Latest ADU Projects

    Our Process

    A stress-free experience from start to finish

    1. Consultation

    Schedule a Virtual or an In-House Consultation with our Remodeling Consultants to discuss your project.

    2. Estimate

    Come in for an appointment to our Designer Showroom to go over the quote аnd pick out materials.

    3. Contract

    We sign a contract and get the ball rolling. You will meet with our Designer to finalize the designs.

    4. Construction

    We incorporate digital technologies into our construction processes to be more efficient.

    Book Your Free Consultation Now

    Get Financing
    for Your ADU Project


    Contact Solano Mortgage for a free consultation.

    With 30+ years of experience, we ensure no negative impact on your FICO scores or data privacy. Solano Mortgage: your trusted lender, broker, and ally with California's largest credit unions.

    Reach out to Our Experts
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    Why Choose
    A+ Construction & Remodeling?


    We provide clear estimates that tell you exactly where your money is going.

    Timeframe & Schedule

    We provide an easy-to-follow schedule so you can see where your project is at and what is next, in real time.

    License & Warranty

    We are licensed, bonded and provide warranty on labor and materials because we believe it’s important for you to have a peace of mind.


    We have a streamlined communication system that includes your own personal chat with your entire team ready to answer your questions at any time.

    A+ Construction & Remodeling ADU Builders Proud to be recognized by

    BBB A+ Rating
    NKBA - The National Kitchen & Bath Association
    NARI - National Association of the Remodeling Industry
    Yellow Pages
    EPA - United States Environmental Protection Agency
    KCRA-TV News
    DR - Daily Republic News
    The Sacramento Bee News
    GoodDay Sacramento - CBS News
    YEC - Young Entrepreneur Council
    Casita Coalition
    The Original Sacramento Home & Garden Show
    Chamber of Commerce
    GC Magazine
    GuildQuality Member
    Made In USA
    Renovate America
    ADU Calculator

    What type of ADU Construction are you looking for?

    Structure conversion
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    Craft room
    Slab foundation
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    Usually, those who are planning to buy a house for the first time often face the problem of lack of space. What to do in a situation when you need extra space for the detached garage or your needs? But you like this house and its plot so much that you do not want to let it go! There is a way out, and this is an accessory dwelling unit.

    The accessory dwelling unit is a very elegant way out of the difficulties caused by the lack of living space. This is an additional extension to the house or a separate room that you can use for any needs. This will embellish your home and historic district a little and later become a valuable investment.

    A+ Construction & Remodeling, an ADU builder, is a company that will handle your project as comfortably and quickly as possible, take into account all your preferences and wishes, and make your dreams come true.

    Folsom ADU Builders

    But first, to build an accessory dwelling unit in the Sacramento area, you need to know all the laws and understand which applicable building permit you need to apply for the new construction of dwelling units in the state.

    Restrictions on the lot size

    Local authorities of the City of Folsom, CA, do not set any restrictions on the size of your property, it can be of any shape and size, and you have the right to get building accessory dwelling units to permit. Therefore, you do not have to think about whether the minimum meets the requirements.

    The permitted area of your ADU

    The allowed size of your accessory dwelling unit depends on the type of accessory dwelling unit that complies with your needs. This means that the size of detached  ADUs with a separate entrance to your property will be different from the allowed size of the attached ADU. We will tell you more about the types of ADU below.

    Minimum of setbacks

    Your accessory dwelling units should be built at least four feet away from the side and front property line of your residential property. There are also rear yard setbacks that you should not forget about. So take care of both side and rear setbacks. Those required front yard setbacks and rear yard setbacks are very important, as they will only improve your security. It does not apply to a junior accessory dwelling unit, but a transformed ADU must be moved some distance away from your living area. Moreover, make side and rear setbacks; all this will ensure fire safety and protect your detached ADU.

    Permitted places

    If you have a territory that allows you to build a new building in addition to the main building and you have a single-family house, then you will have no problems obtaining a building permit. It is also possible to build an accessory dwelling unit for owners of apartments in houses for many families, such as a triplex. However, be careful; you will have to pay the historic district commission if your ADU is located in a historic district.

    The maximum number of ADU

    In the city of Folsom, a maximum of one or two accessory dwelling units per family is allowed. It all depends on the size of your territory. In the case of apartment buildings, everything depends on the number of apartments in the house and the type of accessory dwelling unit.

    Parking requirements

    The law requires a separate parking lot for a free-standing accessory dwelling unit (unlike for an attached one). In addition, the transformed accessory dwelling units and the junior accessory dwelling unit do not require a separate parking lot.

    Fire safety rules

    The state law does not say about the mandatory installation of fire sprinklers. But still, we recommend installing them to avoid problems. Also, try not to leave combustible substances in the open space. And why not secure an already existing home with fire sprinklers as well? Do not forget to learn fire codes in case of an emergency. However, even in their absence, you might have no problems with obtaining a building permit.

    Permitted height

    According to state law, you are required to build a one-story building, at least sixteen feet tall, so that it can serve you properly.

    Before planning your accessory dwelling unit, be sure to familiarize yourself with the laws of the state so that you know how to get a permit. But, there is a more pleasant way out! A+ Construction & Remodeling will definitely take care of the legal security of your construction.

    ADU Contractor Folsom, West Sacramento

    Why should you improve your rather comfortable existing space? Why do you need ADU on your land plot? We will make you familiar with the five major advantages of ADUs that will change your mind.

    Use an old garage for living

    Remember how as a child, you have always wanted to become a performer or do something with your own hands. So why not start now? A+ Construction & Remodeling will help you make your dreams come true; we will create the perfect space for your creativity so as not to distract other family members with a loud noise. Or maybe you have dreamt about turning your old garage into something more useful for a long time. This will no longer be a problem; after a little refinement, you will enjoy a brand new accessory dwelling unit. This will be extremely helpful if the off-street parking lot is not your priority anymore.

    Accommodate your parents in ADU

    It often happens that old people are not very comfortable living far away from their children. They are already very weak, and they need care, so it is a good idea for them to live in accessory dwelling units. We are sure that it is hard for several generations to live in a single-family house, but with an accessory dwelling unit, you will solve this problem easily.

    Make a guesthouse

    At first, gatherings with friends are cool and fun until the moment when they stay for a few days. We agree that this might be a little annoying, but we want to preserve your strong friendship and suggest using an accessory dwelling unit as a small guest house.

    Increase your rental income

    Very often, in search of inexpensive housing, students go to the suburbs and rent buildings like accessory dwelling units. It helps a lot to save them money, but it will also bring profit to you by renting your primary dwelling unit short- or long-term. Use it for extra income!

    Increase the price of your house

    Every year, real estate prices in the states are growing more and more, and at such a time, accessory dwelling units can be a good investment, as it is very convenient. You can invest a small amount of money to build an accessory dwelling unit. As a result, you will see how the price of the house will increase just in a few years. Detached ADUs that are built near an existing primary dwelling will be great in this case.

    ADU Unit Construction Folsom, California

    Now we can move on to familiarizing ourselves with the types of accessory dwelling units. There are not many of them, and there are only five types:

    • Converted accessory dwelling unit. A very convenient type of unit, which implies the creation of a special non-residential premise from existing space. Its advantage is that minimum effort is expended. Moreover, you decide for yourself how it will serve you. The main disadvantage is a little practicality.
    • Detached accessory dwelling unit. You can easily add a fresh look to your home located in a historic district and add practicality to it by adding a small detached ADU to the existing primary dwelling. In a detached AUD, there might be two or more bedrooms and at least one bathroom. Well, definitely, the neighbors will be jealous of such a nice detached accessory dwelling unit.
    • Primary dwelling unit. You can build yourself accessory dwelling units that stand not far from your house, with a separate entrance, and use it as you want! It is nice, practical, and inexpensive. In addition, it adds value to your land plot. What else is needed?
    • Junior accessory dwelling unit. It is the same extension, only smaller and with less potential, but junior ADU is very convenient if you do not need large buildings of one thousand square feet.
    • Other. You can tell our architect how you see this existing detached accessory structure and come up with your own unique design of an ADU.

    On the A+ Construction & Remodeling website, you can choose the type of extension you need. Make sure that an accessory dwelling unit complies with your needs. Specify the filling of your future ADU, specify the Folsom area and find out the approximate price of the ADU of your dream.

    Folsom ADU construction company

    We are sure that there are a lot of companies in Folsom, El Dorado Hills, and other suburbs of Sacramento that provide similar services of building an attached ADU as we do. And in such abundance, it is not difficult to get lost, but after the list of facts below, you will not want to work with others.

    Three facts why people trust us

    • Saved money and no shady spending

    We respect you and your budget very much, and we understand that spending millions on such a project does not make sense, so we always try to meet the budget and come to the ideal price. With our crystal clear accounts, we will not spend a single extra penny.

    • High-quality and environmentally friendly product

    We follow trends, respect the surrounding nature and your historic district. Therefore, A+ Construction & Remodeling provides only environmentally friendly products that are still of great quality. Everything we do will serve a property owner for a long time.

    • All the necessary certification and the best employees

    We are proud of our colleagues and experience in the market. We can make all building permits for you. Every person that works in the A+ company is a professional: from an architect who helps you to get some design guidelines to ordinary builders who are completely devoted to their work.

    Looking for More ADU Options?

    Tiny Homes

    TinY Homes

    Experience tiny living with our innovative designs and unmatched quality

    Prefab ADU

    Prefab ADU

    Streamlined elegance: Discover our cost-effective prefab ADU solutions

    ADU Design Build

    ADU Design Build

    From concept to completion: Superior design, rapid construction, and cost-effective solutions

    Backyard Cottage

    Backyard Cottage

    Seamless blend of rapid construction and superior design in your outdoor space.

    Detached ADU

    Detached ADU

    Seamless integration of space and style with expertly crafted detached ADUs

    Tiny House With Garage

    Tiny House With Garage

    Innovative solutions for compact living with convenient garage space

    In-law Suite

    In-law Suite

    Superior in-law suites built with excellence and craftsmanship.

    Garage Conversion

    Garage Conversion

    Redefining your space with innovative design, rapid execution and superior craftsmanship.

    Custom Tiny Homes

    Custom Tiny Homes

    Your vision, our expertise: Creating custom tiny homes with superior quality

    Tiny Office

    Tiny Office

    Elevate your productivity in custom tiny offices built with excellence and craftsmanship

    ADU Estimator

    ADU Estimator

    Get an average price for an ADU in your area or talk to our expert to get a detailed quote.

    Granny Flat

    Granny Flat

    Redefining independent living with top-notch design and innovative solutions.

    A+ Construction & Remodeling Certifications

    INC. 5000 Ranking

    INC. 5000 Ranking

    EPA Certification

    EPA Certification

    LIC #1007869 CSLB

    LIC #1007869 CSLB

    Accreditation with BBB

    Accreditation with BBB

    Member of NKBA

    Member of NKBA

    Member of NARI

    Member of NARI

    What Makes A+ Construction & Remodeling Unique


    Our process is organized, streamlined and designed with you in mind.


    We hold many awards and certifications in the industry.
    Benefits - BIGGER SAVINGS


    In-house team means vendor savings passed on to you.


    Professionally designed showroom with you in mind.
    Benefits - NO HIDDEN COSTS


    We provide detailed estimates showing you what you get for your money.


    Furniture-grade quality products at affordable prices.
    Benefits - TRUSTED SOURCES


    Our showroom carries the latest materials from trusted brands.
    Benefits - ECO FRIENDLY


    Our materials are eco-friendly and green certified.
    Benefits - NO PRESSURE SALES


    We want you to be confident in your decision, no pressure sales.
    General Information

    Folsom is a city located in Sacramento County, California. Typically, people know it thanks to well-known Folsom Prison, and, of course, Lake named after it. Folsom is a city of moderate political views, as well as of highly-rated schools where children may obtain proficiency in many subjects due to highly-developed educational programs.

    The total population there is 77K. People from nearby cities tend to relocate to Folsom and enjoy suburban infrastructure among others.

    Major Events

    Folsom is rich in history. It was named after Joseph Libbey Folsom who managed to buy a rancho out there and develop a town that has been primarily inhabited by gold miners. Alongside it, Joseph Folsom increased the wealth of the city with the railway which has established a connection with Sacramento. In 1980, that railway was abandoned, however, residents returned it to life back in 2005.

    Folsom is also famous for its close location to the Gold Rush spot. Tourists yearly visit it to dive into the spirit of gold miners who were desperate enough to find gold to prosper.

    Another thing regarding the history of the city belongs to the Chinese American community which has been successfully hosted in Folsom. Unfortunately, their church was driven out of town in 1886 by arsonists.

    What do you know about Folsom city? Most probably, your memory accommodates the knowledge about well-know Folsom Prison which has been established in 1880. The prison itself was considered a plan to build a hydroelectric dam using the power of prisoners.

    Finally, this city is home to Folsom Lake which attracts people for fishing, picnicking, and general time-spending with a family.


    Folsom has both very hot summers and cold winters. Averagely, it can boast 267 sunny days per year but 0 inches of snow, and 21 inches of rain. The temperature itself varies between 39°F to 95°F.


    The diversity of ethnicity in Folsom is poor, there are fewer people of other nationalities. Folsom accommodates approximately 74% of White, 5% of African American, less than 1% of Native Americans, 12% of Asians, and 11% of Hispanic and Latino people. As per residents’ feedback, they lack the acknowledgment of other nationalities and find it quite hard to find a community of interests. People are more family-oriented and adults are into work or time-spending at home. Young adults are more open in terms of activities in the city.

    Where to Study?

    One of the most popular education establishments is Folsom Lake College. Alongside college, there are 3 high schools and 4 middle ones.

    In general, their education system is decent, and parents report the high levels of knowledge their children obtain at schools.

    Notable People
    • Spider Jorgensen — baseball player.
    • Aspen Ladd — UFC fighter.
    • Brennan Poole — a NASCAR driver.
    Top Things to Do in Folsom
    • Folsom Lake. This place attracts people for bicycling, boating, fishing, picnicking. There you may find a camp zone with over 60 sites available. The total area is 19,000 acres.
    • Sutter Street. It is a great place to dive into the 1850s’ history. The district itself reminds you about the previous century history with its buildings, designs. As of now, it is rich in modern establishments as well that provide tourists with dining and shopping experiences.
    • Prison Museum. You may see artifacts, photos as well as contraband items that belonged to the prisoners. The admission fee is only 2$ per person.
    • Zoo. What about time-spending overlooking the animals? Their zoo is a perfect spot to spend time with children. Bears, coyotes, tigers and many more to see there.
    • Harris Center. This is an art and culture center in Folsom. There are shows, events, and performances ongoing every year.
    Reviews on Living in Fair Oaks

    People who live there have mostly pleasant words about the city such as — Clean, Friendly, Supportive, Safe. There are some drawbacks, however, they are typical for any city in Sacramento. It concerns a lack of diversity for some ethnic groups, and there are fewer job opportunities. Folsom fits those who come to retire or spend calm days in their living after hustle and bustle from megapolises.

    As for the distinctive features of this city, residents mention a great number of movie theatres, a zoo, lake, and shopping malls where you may spend time enjoying the shopping and simultaneously a dining experience.

    The median home price is $624K.

    All in all, it is a safe city with low crime rates. If there are any criminal events, they are most likely to be linked to property robbery. As for assaults, and murder, it is quite calm, as the police department structure is very wide to service more than the whole city. Folsom rankings: 61 out of 525 as the Best For Living in California, 80 out of 525 as the Best for Raising a Family Unit in California, and 91 out of 525 as the Best for Young Adults to Pursue a Career in California — as per Niche.

    ADU Building Folsom, California

    Let us tell you about a couple of organizational issues that will seem trivial to you with A+ Construction & Remodeling. Let’s start with the popular question of how much the project of such a convenient construction will cost.

    Approximate prices of ADU

    Since we want to leave our clients with smiles on their faces and not with emptiness in their wallets, we agree on the best price for the project for both parties. However, it is impossible to predict the exact price right now because the prices vary based on your plot of land, the size of ADU, and the quality of materials, as well as the complexity of the construction.

    How long will it take to complete the construction?

    The construction process is not fast because of many factors, but we can tell you the approximate time for the entire project.

    • The total time of the project completing is about 14-30 weeks;
    • Design review and approval process take 3-6 weeks;
    • Creating a permanent foundation & building construction take 8-18 weeks;
    • Interior and exterior finishing take 3-6 weeks.

    It looks like a long, complicated process, but it all depends on the density of meetings and communication between you and the contractor.

    Prefab ADU Construction

    What makes ADU service especially affordable is the prefab housing supply. Using already-made details for accessory dwelling units in Roseville makes the whole process faster.  With A+ Construction & Remodeling and their fast delivery of the supplements, you will spend less money, time, and nerves.

    ADU Housing

    We are sure that accessory dwelling units will be a perfect housing solution for big families or people who are often visited by their relatives or friends. Accommodate your loved ones in a comfortable ADU or use it for your hobbies. Specialists from A+ Construction & Remodeling will make the construction fast, easy, and reliable.

    ADU Building Process Steps

    Our comprehensive ADU construction process includes permit ready set of plans, interior design, submittal services, removal of debris. We are committed to using only the highest quality materials, ensuring the longevity and value of your ADU. With our ADU Building Services: From initial design consultations to the final touches, we’re with you every step of the way.

    ADU Construction Process Steps

    Step 1. Permit ready set of plans: Architectural plans and engineering calculations, ready for a permit application.
    Step 2. Interior Design: Our expert team offers personalized design consultation to create a functional and stylish interior space.
    Step 3. Permit Submittal Services: We handle the hassle of permit submissions on your behalf, ensuring compliance with local regulations.
    Step 4. Removal of debris: Our efficient crew takes care of removing construction debris, maintaining a clean and safe work environment.

    ADU Construction Includes

    Please note that the contents of the package may vary depending on the specific terms outlined in the contract. While we strive to provide accurate and consistent packages, certain variations may occur based on the agreed-upon terms and conditions.
  • Concrete slab foundation: Enjoy a durable concrete slab foundation with proper grading and excavation for structural integrity.
  • Exterior covered porch: Create an inviting outdoor space for relaxation and entertainment.
  • Walls, partial vaulted/flat ceilings, 9′: Experience open and spacious living areas with customizable ceiling styles.
  • Gable style roof: Benefit from a classic and durable roof design that adds timeless appeal to your home.
  • Shingle type roof: Our high-quality shingles, along with gutters and downspouts, provide excellent protection and drainage.
  • Mini-split Dual zone: Achieve optimal comfort and energy efficiency with our dual-zone mini-split system.
  • Tank water heater: Enjoy a reliable water heater, conveniently housed in an outdoor galvanized water heater closet.
  • Electrical sub-panel: Ensure efficient power distribution with our electrical sub-panel, meeting all safety and code requirements.
  • Switches and outlets per code: We install switches and outlets throughout your home, adhering to electrical code standards.
  • Exterior entry doors 36×80: Enhance security and aesthetics with our high-quality exterior entry doors.
  • Standard-sized swing doors: Seamless transitions between rooms with stylish and functional doors.
  • Standard-sized interior closet doors: Maximize storage space with our efficient and visually appealing closet doors.
  • White vinyl windows: Enjoy energy-efficient windows that allow natural light to brighten your home while providing insulation.
  • Insulation per T24: Our construction includes energy-efficient insulation for optimal comfort and reduced energy loss.
  • Drywall & Orange peel or knockdown texture: Smooth and visually appealing finish with texture options.
  • Interior paint: Choose from a wide range of premium paint colors to personalize your interior space.
  • Painted exterior lap siding: Enhance curb appeal with professionally painted lap siding that withstands the elements.
  • Luxury vinyl planks: Experience the durability and low-maintenance benefits of luxury vinyl planks for your flooring.
  • Shaker style/European style cabinets: Enjoy the elegance and functionality of our shaker style or European style cabinets.
  • Tile backsplash, 18″: Add a stylish and practical element to your kitchen or bathroom with an 18″ tile backsplash.
  • Natural stone countertops: Elevate your kitchen and bathroom spaces with luxurious and durable natural stone countertops.
  • Closet and pantry shelving: Maximize storage efficiency with our customizable shelving solutions for closets and pantries.
  • Pre-assembled vanity cabinet: Our pre-assembled vanity cabinet comes complete with a countertop and splash piece backsplash.
  • Acrylic shower enclosure: Experience the beauty and low-maintenance benefits of an acrylic shower enclosure.
  • Plumbing fixtures and light fixtures: Our package includes high-quality plumbing fixtures and light fixtures as per the plan.

  • Frequently Asked Questions (FAQ)

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

    It is impossible to reveal the exact prices since it all depends on what type of single-unit dwelling you want, whether it is an extension of the primary structure for a single-family home or it is a detached livable space. Contact our managers online to find out the price of ADU in Sacramento.

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

    You can use a special application on the A+ Construction website to calculate the approximate price of the efficiency unit for a single-family home. Another option is to contact our managers and designers. They will be able to tell you the final price after planning the ADU you need.

    What are the requirements for an ADU in California?

    There are not do many rules for a single-unit dwelling if it is located near a single-family home on the same land plot. It should be an area where it is allowed to build living spaces, and there must be a sewer service; your plot and the primary house should be put in the California register.

    How much does it cost to build an ADU in Orange County, CA?

    In addition to the costs of ADU and materials that you can calculate on our website, you should be aware of some additional expenses. Our managers will be calculating connection fees, furniture expenses, and capacity charges. After that, you will know the exact price of ADU in Orange County.

    Other Renovation Services in Folsom, CA

    Serviced ZIP codes: 95630, 95762, 95763, 95671