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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

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University of California-Davis 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.

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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

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The lack of affordable housing options across the US, coupled with drastically increased costs, leads to a problem becoming more visible. In response to this challenge, contractors across the country have put forward the idea of small but efficient housing units: ADUs.

ADU cost Sacramento is a significant factor to consider when exploring housing options in the area. Accessory dwelling units are small houses equipped with all the facilities inherent in residential premises. Being blocks installed on the same plot as the primary dwelling, they belong to the means of low-income housing as they don’t present difficulties with the acquisition of another piece of land and, taking into account a number of factors, can be significantly lower in price.

ADU Builders, University of California-Davis,CA

Building an ADU is a full-scale construction undertaking that demands a certain level of expertise. How do you construct a long-lasting ADU from the right materials at a reasonable cost while experiencing minimum setbacks in construction technology?

Professional contractors for accessory dwelling units specifically focus on managing the construction process in the most effective way. When they apply housing innovation methods, they use only high-quality materials that will stand the test of time and weather conditions. Also, ADU specialists have knowledge in the fields of federal law, state law, and regulations at the local level; this makes it easier to obtain permits and prevents the need for costly rework in the case of unacceptable construction.

ADU Contractor University of California-Davis, CA

A+ Construction & Remodeling is a reputable company that operates in Yolo County and, among other things, specializes in creating accessory dwelling units. Therefore, if you are from the city of Davis and are just considering increasing your residential area for different purposes, please have a look at what the A+ team has to offer.

Building an ADU with A+ Construction & Remodeling means:

  • Highly qualified specialists oriented on high-quality results. Professional builders, architects, engineers, and designers of A+ have been selected and have proven their experience and competence to become part of our team.
  • We provide affordable housing without sacrificing quality. The company offers a variety of ADU types for your needs. We will not only select an option according to your budget (for example, a standard one from the catalog), find materials with the best quality-price ratio, but also ensure the final structure is durable enough that you do not have to spend money on new repairs in the near future.
  • A+ contractors are licensed and community-approved. Having been serving the state of California for more than twenty years, we have gained a reputation as trustworthy builders, validated, among others, by numerous certificates and licenses.
  • Our extensive gallery of accomplished projects speaks for itself. Before ordering services, you can familiarize yourself with successfully completed projects. We have more than a thousand successful transformations of houses and full-scale construction projects whose elements fit seamlessly into the style of the site.
  • We undertake to build an ADU near your Davis home to save you time and effort. The A+ team knows how to effectively build a workflow. From planning each subsequent stage of construction and up to handing over the keys to the Davis, CA, house owners, all this is clearly organized and thought out to the smallest detail.
  • With the help of constant communication, we will take into account all peculiarities of design and construction you envision. This means that by drawing up a detailed action plan with your direct participation, we will select everything from the general design direction of accessory dwelling units to the color of particular poufs.

In the given article, we will explore what ADUs are, ADU types, their advantages, the basic rules of construction, and much more.

ADU Contractor Building Types

So, what forms can the ADU building take? Majorly, builders in UC Davis city offers the following types of additional living space arrangement:

  1. A detached ADU. This is a completely new construction located on the same lot as the primary residence. Building an aesthetically pleasing, secluded ADU with a separate entrance may bring forth good monthly additional income if the ADU unit is used for rent.
  2. An attached ADU. Homeowners turn to the construction of an ADU adjacent to the house if they want to have a minimum of restrictions on access to additional living space. For example, if they want to take care of somebody who lives in a granny flat.
  3. Garage conversions, attic conversions, or basement ADUs. A single-family home is allowed to arrange an accessory dwelling unit instead of unused space inside their home or garage. This option is faster and usually cheaper than starting from scratch. Moreover, it allows for the full use of every inch of existing property.
  4. An ADU above the garage. As in the case of conversion, this option is especially suitable for homeowners whose plot is not too large. There is no need to squeeze the tiny house somewhere else if the roof of your garage fits perfectly under it.
  5. A junior ADU. Among secondary units, this one has the strictest restrictions on size (up to 500 sq. ft.) and on the method of construction (only from an existing unit) but has fewer restrictions regarding other points of the ADU ordinance.


ADU Unit Construction at University of California-Davis

Accessory dwelling units are the subject of several regulations. Thus, the ADU ordinance adopted by the Davis City Council prescribes the maximum size of an ADU, which is 150 sq. ft, as well as its maximum size, which varies depending on the number of beds: 850 square feet for single-bed ADUs and 1000 square feet for two-bed ADUs. In addition, junior ADUs cannot exceed 500 sq. ft. and must be converted rather than built anew.

As to the maximum height of an ADU, in Davis, CA, it’s typically restricted to 16 feet, with a few exceptions.

The number of ADUs per family is also restricted. Single-family homes are entitled to have one ADU in full size and one junior ADU in case the homeowners currently live in the main residence. As opposed to a single-family residence, multi-family residence depends on the number of buildings already made, but typically it is allowed to have one ADU per four existing residential buildings.

Benefits of ADU Building

Accessory dwelling units are a good choice for many reasons. ADUs are suitable for the purposes of accommodation, extra income, care for loved ones, creating a minimalistic personal space, economical living, and all this together.

Thus, the main benefits of building an ADU include the following:

  • Providing housing for young adults on your own land plot. A detached ADU for grown-up children is a budget-friendly way to give them freedom and independence while staying close to back them up.
  • Home offices for remote work, studios, and workshops. When you’re struggling with total task concentration, it’s important to keep family members at bay. Increase your productivity by organizing a workspace in a secluded house with all amenities within walking distance.
  • Guest houses. If a single-family residence exists in a rather cramped environment, housing friends or relatives from another city, even for the weekends, can get tricky. Therefore, in order not to urgently arrange a rearrangement of furniture and not to drag an old cot out of the garage, some homeowners took care of a small but functional cottage in advance for a joint holiday on their plot.
  • Granny flats. ADU builders offer detached granny flats for aging parents who can live on their own but for whom it’s hard to pay the separate accommodation costs due to low income. On the other hand, detached ADUs and conversions will do for the elderly, who need constant supervision.
  • Rental income. With California’s large population and hence limited housing stock, not everyone can afford to build their own house in the city they want to live in. It’s especially relevant for college and university students. Thus, ADU is a win-win situation. With the help of this housing innovation – an ADU, moderate-income households can increase their monthly income. Rental housing allows students to save commuting time for rest and actual study.
  • Increasing property value. If selling is in your future plans, an ADU building is a way not only to recoup the cost but also to make some money. Especially considering that you can choose not one but two financing options: first, use an ADU with affordable rents to earn a certain sum monthly, and then sell the property in full, receiving a benefit of 30 to 40 percent more.

University of California-Davis ADU Construction Company

If you decide to go to A+, we will carefully study your request, paying special attention to the following points:

  • Developing design ideas

At this stage, homeowners can express their creative imaginations to their full potential. You tell us about your idea of the ideal ADU. And based on your requests, A+ designers will select several options for you, which we will later visualize using design rendering programs.

  • Architectural drawings, flooring plans

Designing with interests and architects is the most important part of the preliminary stage. Therefore, our competent specialists plan the design so that in the future, you will not have unforeseen problems.

  • Selection of materials

Why do Yolo house owners count on us? Because A+ Construction and Remodeling have close ties with the best of the local building material suppliers. We choose quality so that your ADU has both an appealing curbside and long-lasting solidity.

  • Building permit acquisition is in strict accordance with the Davis Municipal Code pertaining to ADU construction

Dealing with the red tape of your city’s local governments and regional entities is not a piece of cake. That’s why we take on the hard work, leaving you only to make the major decisions and enjoy the results.

Building an ADU at University of California-Davis

Before getting on the path of building an extra residential unit, Yolo County homeowners first go through a period of preparation, which includes the following stages:

  1. Initial consultation, at which the A+ team will get acquainted with your plans and go through the general questions about the future project.
  2. Free estimate, during which we will make a detailed list of works and calculate the exact amount of upcoming expenses.
  3. Signing an agreement, which will finally consolidate all the rights and obligations of both parties.

Also, throughout the entire workflow, convenient communication will be established between the client and our team. After all, the more we discuss the project, the more often we compare what’s going on with the conception, and the more the final result will correspond to your wishes.

Prefab ADU Construction

Autonomous units belong to the means of affordable housing because they are, in fact, affordable. Thus, for low-income households or homeowners who do not want to bother with tedious planning and design, there is an opportunity to acquire a prefabricated, modular ADU.

A prefab ADU is the same ADU but previously engineered and partially assembled at the factory. Ready-made ADUs are constructed according to standard drawings, and therefore, when ordering such an ADU, you will not have any costs for individual planning and the selection of design solutions.

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 Housing

All in all, versatile ADUs are a very useful community innovation that brings benefits to all parties. Being a source of work for us and income for homeowners, ADUs also partially solve the problem of housing affordability, not only for the owners but also for the tenants of this housing. UC Berkeley Center conducted governmental studies that indicate that further spreading of ADU is still needed to cover the affordable housing shortage, especially for those who’re low-income qualified. So, together with you, we help very low-income families find a decent and sufficient place to live.

So, if the short-term or long-term benefits of these buildings are what you are interested in, do not hesitate to contact А+ Construction & Remodeling!

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 in Yolo, California?

    Depending on the size, attractiveness of the design, and popularity of the area, the ADU price may vary significantly. That is why A+ offers a free estimate. However, if you calculate the average, taking into account the fact that an sq. ft. of an ADU may start at 100 dollars and go up to 400 dollars, a 1000-square-foot ADU may cost you $100–$400,000.

    Do I need a permit to build an ADU in University of California-Davis, CA?

    For the construction of residential premises both from scratch and when converting from a garage or other existing building, a construction permit is required. A+ specialists will help you trudge through sophisticated ordinance language and, as a result, consider all the features of the building inherent to your area to easily obtain all the necessary permits from your city government.

    How long does it take to build an ADU in California?

    Taking into account the preparatory stage, which includes planning, obtaining permits, and a design project, the construction of a custom ADU can last about a year. At the same time, the size and complexity of the ADU are of great importance. So, junior ADU will typically take several months, while prefab ADU may take a couple of months.

    Other Renovation Services in University of California-Davis

    Serviced ZIP codes: 95616

    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.