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

Receive $500 OFF

When You Request Online
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Colfax ADU Design & Build

We take care of everything from plans and permits to construction and comprehensive project management, simplifying ADU development and ensuring your peace of mind


A fully-custom design to give you a truly unique space that matches your style, budget, and vision for new space.


Offering multiple architectural plans for detached ADUs that have already gone through the building permit review


Our selection of expert-designed, ready-to-build ADU plans. Talk to our expert to find the perfect plan.

Garage Conversion

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

Cost Calculator

Turnkey Custom ADU

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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.

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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
DR - Daily Republic News
The Sacramento Bee News
GoodDay Sacramento - CBS News
YEC - Young Entrepreneur Council
Renovate America
The Original Sacramento Home & Garden Show
Chamber of Commerce
GC Magazine
GuildQuality Member
Made In USA
ADU Calculator

What type of ADU Construction are you looking for?

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Have you ever thought that you need a bigger space to live in than your current home allows? Do not worry; you are not alone here since many homeowners come to the same conclusion every now and then. The first option that lies on the surface would be to sell the house you are not satisfied with and buy a new one. However, there are also options for building accessory dwelling units that will not force you to leave your property but will make you feel happier with the existing home.

If you are interested in getting an ADU, you are in the right place. Here you can find useful info on different types of accessory dwelling units in Colfax, CA, factors to consider when constructing, and the ADU builder company to contact to move forward with the project.

ADU Builders Colfax, CA

Depending on the primary purpose an ADU is intended to be used, you are free to choose from various options.

Take a look at the list of the most common types of ADUs in East Colfax that are available for an owner of the house:

Attached ADU

For families that need some extra space inside their homes, an attached ADU is the best option. This type of ADU shares a wall with your main residence and allows you to have one more (or bigger) kitchen, bathroom, living room, or storage space. It can be located to the left or right of your house or in the back of it and exactly match the style and design of your main home.

Detached ADU

Although being a project that would cost you quite a lot of money, a detached ADU is perfect for families that are in need of a lot of extra places. For example, some may not be patient enough to share a house with their elderly relatives, so it is best to have so-called granny flats, or in-law units, where moms and dads will have everything they need for comfortable living without intruding on your private space.

Alternatively, detached ADUs may be a source of additional rental income, provided they meet all the regulations and requirements and are constructed in accordance with zoning rules.

Garage or basement conversion

In case your community planning does not allow stand-alone buildings or backyard homes in the area, you can still make an ADU with separate access by transforming a garage or basement into a complete living area. With the right rezoning, you can make the most of the space, seemingly not suitable for comfortable living.

From what was described above, it becomes clear that every person dwelling in a residential neighborhood in California can find an ADU that would satisfy their needs in terms of space, resources, and budgeting.

ADU Contractor Colfax, CA

No matter how small and, at first glance, easy your project is, it can turn out to be quite an ordeal to take all the details into account and approach the construction process in compliance with the law. For example, some ADUs require a minimum lot size to be able to start building or be able to provide space for a parking place.

Of course, you can take care of all the construction and development yourself, but you could also save your energy and hire a responsive contractor that is familiar with the restrictions and permitting in Colfax, one of which is A+ Construction and Remodeling.

ADU Contractor Colfax

Choosing the right team of contractors and developers to entrust your project with is no less important than picking a suitable design for your ADU. Yes, that is true that there are a great many of them offering services now, but how would you know that this particular builder guarantees the best performance?

Do not worry; we have gathered a few tips for you:

  • Make sure that the chosen contractor has earlier performed projects of this kind. You could take a look at the portfolio and the list of services that they are ready to provide you with so that you can be sure to see the result you pictured for yourself.
  • Ask residents of your neighborhood, or talk to friends and relatives who have already used the services of this contractor on their properties. Of course, you can read an online raving review, but the information straight from the horse’s mouth can not be underestimated.
  • Check for the necessary licensing that allows this contractor to operate in your city. This is crucial both in terms of the quality of the job done and future relationships with the contractor related to the damage or improper functioning of the building.

If you ask us, we would recommend A+ Construction and Remodeling to take care of your ADU project, since not only is this company trustworthy and reliable, but it also operates legally and with integrity.

ADU Unit Construction Colfax

Apart from the building process itself, a contractor is also responsible for the legal aspects of the project, including talking to a special committee to receive permits in the required city and following any other type of regulations applicable to constructing an ADU.

For this reason, we advise hiring an experienced contractor like A+ Construction and Remodeling, who is always in the know of the latest changes in the local law and can ensure not only timely but also legal construction.

Benefits of ADU Building

Now that you know pretty much about the types of ADUs and the way to approach them, we are ready to take a closer look at the advantages that they can bring.

Here are only a couple of them:

  • ADUs are great for long- and short-term rentals. This can give you extra income that will cover property taxes, or at least part of them.
  • ADUs are relatively quick to construct. You will not have to wait months and years before you can start using your new room or house.
  • Before a team of builders starts working on the project, they will trim grass, do some cleaning, and fix minor shortcomings on your property.

Colfax ADU Construction Company

We totally understand that some homeowners might feel a bit uneasy about entrusting the project with a company they have never done business with.

That is why, to understand why it is beneficial to hire A+ Construction and Remodeling, we have gathered what makes it stand out from the competitors:

  1. In your first consultation, you will have all your questions answered and all your concerns clarified. You will also get an estimate of your future ADU and will be guided through all the steps and stages of the process.
  2. A+ has dealt with a lot of projects, which can be seen from their portfolio. You should not worry that your project is too challenging for them!
  3. A team of experienced professionals will make sure that your ADU is zoned properly, has the required permit, and looks beautiful, thanks to the well-worked-out design.

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 For Every Family Change

Granny Flat For Every Family Change

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.


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


Professionally designed showroom with you in mind.


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


Furniture-grade quality products at affordable prices.


Our showroom carries the latest materials from trusted brands.


Our materials are eco-friendly and green certified.


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

ADU Building Colfax

If you are still in two minds about whether you need an ADU or not, we can reassure you that you will not regret a second when you have it. Even if you are not going to use it as a living space for your family, you can always rent it out and increase your income.

Alternatively, you can transform an accessory dwelling unit into a more suitable type of property, such as a home office, workshop, or home gym.

Prefab ADU Construction

Projects with a personal touch can cost quite a lot, but if you urgently need an ADU being short of money, there is a way out. Prefab ADUs are constructions that are produced by manufacturers in advance and simply need to be installed on your property.

It is true that they generally resemble each other, but they are a great option if you need a fast and relatively cheap housing solution.

ADU Housing

Accessory dwelling units are indispensable when it comes to enlarging your house and having more room for family members. As you already know, there are different types to choose from. However, if you are still not sure which option would suit you best, you can ask a contractor in your city for advice.

For example, you can always contact A+ Construction and Remodeling in Colfax, California, to get all the information related to ADUs, their zoning, rezoning, permitting, and renovation.

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

    How much does it cost to build an ADU?

    The cost of building an ADU will vary depending on the project’s difficulty and size. What else you should consider is the materials, furniture, and design features of your future ADU. However, the average price for an ADU in Colfax would be around $300,000.

    How long does it take to build an ADU?

    From start to finish, this should take you about half a year. You can speed the process up if you hire a contractor who will deal with permits and other necessary documentation to make the project legal. And, of course, if you already know what kind of design you want, that will save you a couple of months!

    Are ADUs worth building?

    Yes, they definitely are. This versatile type of property can serve different purposes, such as accommodating family members, being a guest house, or a place to rent. Many residents of California have already chosen to build an ADU on their property to increase their home value as well!

    Other Renovation Services in Colfax

    Serviced ZIP codes: 95713

    Thousands of Customers Can't be Wrong!

    Robert & Clara H.
    A+ Construction & Remodeling really nailed it with our detached ADU! Their team's always-on attitude was a lifesaver, and the pros at A+ not only answered all our questions, but made the whole process a breeze. From plans to final inspection - 100% great work. Plus, having a chat where we could go over pictures and get quick answers.
    Peter D.
    A+ Construction & Remodeling helped me turn my property into a profitable investment with their ADU designed for Airbnb. The well-planned design and top-notch construction attract guests, and the extra income has been a game-changer. I highly recommend their services to anyone looking to add value to their property through short-term rentals.
    Testimonial Jerry & Sheron S
    Jerry & Sheron S.
    We hired A+ Construction & Remodeling to convert our garage to an ADU. Both our project manager and the construction team were pleasant to work with. They were always on time and managed to finish the project even before the deadline they set for it. We are extremely pleased with the outcome. We would recommend A+ to anyone considering a home remodel or new construction.
    Bill W.
    A+ Construction & Remodeling did an excellent job building an ADU for my parents. The construction team was efficient and attentive, ensuring that the project was completed on time. A+ is an ideal choice for anyone looking to build an ADU for their family. I highly recommend them.
    Nancy B.
    Our 2-story ADU by A+ Construction & Remodeling is great! These team is total professionals, always ready to help. They not only had all the answers to our questions but also guided us through the details of plans and permits.
    Michael & Karen M.
    A+ team build an ADU that we turned into a home office. Their construction approach maximizes functionality and creates a productive and inspiring workspace. We highly recommend A+ as the top choice for those looking to build an ADU.