#1 General Contractor in Northern California

Carnelian Bay ADU Builders

Serviced ZIP codes: 95604, 96140
Awards Logos Best ADU Builder 2023 in California
Awards Logos №1 Constraction Company in Sacramento
Awards Logos №1 Constraction Company in Sacramento
Awards Logos №1 Constraction 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
#1 General Contractor in California

Carnelian Bay ADU Builders

Serviced ZIP codes: 95604, 96140
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Total Rating
Based on 826 reviews
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Google Rating
Based on 179 reviews
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Facebook Rating
Based on 143 reviews
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Yelp Rating
Based on 81 reviews

Carnelian Bay ADU Design & Build

We take care of everything from plans and permits to construction, simplifying ADU development and guaranteeing 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 Calculator

Turnkey Custom ADU

Package Details
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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
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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Accessory dwelling units, or ADUs, have recently gained a lot of popularity in California. What’s an ADU, and why do hundreds of people consider building it on their property? Shortly, it’s a little additional house with all the modern conveniences that’s suitable for various purposes. For instance, it can serve as an art studio, a guesthouse, a home for grandparents, or just a place to have fun and relax. If you’re considering building an ADU in California, it’s essential to find a reliable ADU builder Sacramento who can help you bring your vision to life.

ADU Builders Carnelian Bay, CA

Constructing an Accessory dwelling unit in your own backyard may seem easy and even exciting, but in reality, it’s rather hard. Also, if you lack the necessary skills, you’ll probably make very grave mistakes that will make the whole process way more difficult and expensive and even lead to the house’s demolition. To avoid this, you’ll need hired specialists who will do everything as it should be — or at least assist you.

ADU Contractor Carnelian Bay, CA

Selecting the best building company near Lake Tahoe can become the simplest part of constructing the ADU of your dreams.

But only in case, you pay attention to the next things:

  1. How available is the license? Unfortunately, not every homeowner takes it into account. To construct an ADU, you’ll need to not only ensure that the license and the permit are available but also find out their expiration date;
  2. Customer reviews. In addition to reading them, you can also talk to your acquaintances who have an ADU construction already built on their property. They’ll share their experience with you and inform you about all the pros and cons;
  3. Photos of the contractor’s previous works. Many companies have portfolios with lots of photos on their websites. They’ll help you estimate whether the company suits you or not.

In any Placer County city, many general contractors fail at one or more of those points. But there’s a company that definitely complies with every single one of them – A+ Construction & Remodeling. It has a large work experience from different places – Olympic Valley, Tahoe City, Auburn, and many others.

This article will be useful for everybody interested in getting an ADU and searching for the right building company in Placer County near Lake Tahoe. Here, we’ll tell you the main information regarding ADU construction, the main types and advantages of these buildings, and give some advice on how to choose the best general contractor for you.

ADU Contractor Building Types

There are a lot of ADU types that can be built on your property. Let’s look at them a bit closer.

Detached ADU

Detached accessory dwelling units are often called granny flats since they’re often built for elderly family members. Such constructions are situated separately from the main residence, but they have everything that’s necessary for a decent life. Moreover, it’s possible to rent a detached ADU out for extra income.

Attached ADU

Unlike the previous type, an attached ADU is connected to the main home. For example, it may share a common wall, flooring, or a foundation with it. In some cases, there’s even a door between these two buildings.

Junior ADU

A junior accessory dwelling unit, or JADU, is a typical ADU with one major difference — its size is much smaller. A junior ADU is a great variant for people who would like to get an ADU but don’t possess the necessary amount of space for a regular one.

Pool House

Such an ADU is the best variant for people who like to relax and party with their friends. It’s a rather large house in a backyard with one bedroom and a terrace with an end leading to the pool. Also, this ADU type has a little patio for barbecues and a small territory for various sports games. Pool house-type ADUs have lots of design variants, which is their biggest advantage.

Converted garage

There are many variants for using up an already-built garage instead of demolition. For instance, you can turn it into a mini gym, a place designed to engage in your hobbies, an extra room for your friends, and so on. A garage converted into an ADU with a large additional bedroom can make the value of your property significantly higher.

Above garage conversion

This is the least-known type of ADU. Basically, it’s a cabin situated over the garage. It can be a small home cinema, a workplace for a freelancer, or a room for your grown-up kid who needs a private space.

None of the ADU types is worse than the other – every one of them has its own advantages. But to get an awesome ADU that will be really designed for your needs, you’ll have to find a company that will ensure its top-notch quality.

ADU Unit Construction Carnelian Bay

In Placer County, any ADU home should be built according to all the norms and regulations of this region. This means that it’s obligatory to consult with an expert lawyer. If you aren’t a specialist in the legal sphere, you may be unaware of some important nuances and details.

Building an ADU usually consists of the next steps:

  • A consultation with your contractor about the project;
  • Designing the outer and the inner house parts;
  • Creating the construction plan while taking into account all the building rules of Carnelian Bay. Also, you’ll need to estimate the price;
  • Getting required permits and the local authorities’ approval;
  • Constructing the ADU;
  • Making various important things such as utility systems’ connections;
  • The final step is the design of the freshly-built ADU’s inner part — for example, laying a carpet and painting the walls. On this date, the work is done.

There are lots of great, experienced lawyers who have the ability to help you in getting all the documents, plan the building process, and understand all the necessary regulations of Placer County.

Benefits of ADU Building

We’ve already said that an ADU home is quite an inexpensive variant, but the price isn’t it’s only advantage. There are much more, and some of them we’ll list below.

Accessory dwelling units are so great because of the following:

  1. Passive income from renting out. Usually, such construction has everything that is required for a normal life, so they can be rented out, compensating for all the construction expenses in a very short period;
  2. An accessory dwelling unit will help you communicate more with your family members. After all, it’s an entire extra home where the whole family can gather and have fun;
  3. An ADU makes your property more valuable since it’s a great upgrade of your territory;
  4. An ADU means much better conditions for living. Oftentimes an ordinary home isn’t enough for different tasks such as storing large items. An ADU can be a great solution to this problem, since it adds space that can be provided for a wide range of various things;

It all means that ADU construction will change your living space, making it much better than before. But to create a really amazing, top-quality, and well-designed ADU, you’ll need an incredibly professional and experienced general contractor — such as A+ Construction remodeling.

Carnelian Bay ADU Construction Company

To get an ideal accessory dwelling unit in Placer County near Lake Tahoe, you need to have a very detailed talk with your contractor. Sadly, many general contractor companies don’t give their clients such a possibility.

In A+, we’re sure that such a policy is completely wrong. Our approach is drastically different:

  • Fruitful negotiations at the beginning. When you meet our team for the first time, you’ll be able to discuss every aspect of future construction and get important tips about it. Also, our specialists will solve all the legal issues, obtain permits, etc.
  • Individual consulting. In case you want to change something in the design or construction plan, you may ask the profile expert everything about it;
  • Editing. If the expert thinks that your idea is beneficial, then the hired construction team will gladly fulfill it.

The professionals of A+ construction & remodeling company are not only highly-skilled and competent, but also eager to respond to your wishes and do everything as you request.

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.


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 Carnelian Bay

People who live in any city of Placer County near Lake Tahoe have to comply with certain rules and regulations when it comes to an ADU building — for example, zoning norms. To get a permit for construction, you need to know and follow them.

In the list below, you can see only a few examples of such norms:

  1. An ADU cannot be built higher than 1 200 ft;
  2. To create an ADU home of almost any type, either detached or attached, you’ll need parking requirements. The only exception is a garage conversion;
  3. For your main home, owner occupancy is necessary;
  4. One family cannot have more than one ADU and one junior ADU;
  5. You’ll need setbacks of a minimum of 4 feet from any street or driveway, property lines, and buildings;
  6. And a lot more.

Following all these rules can be rather difficult. But our professionals will develop a construction plan according to every single one of them because they’re real experts in this field and know every detail of it.

Prefab ADU construction

If you’re afraid that the building process will be long and make lots of noise, there’s an easier, quicker, and much more comfortable alternative – a prefabricated, or simply prefab, ADU.

Different parts of these ADUs, such as a roof, flooring, windows, and walls, are produced in advance, then put together on your territory. This variant is ideal for households with single or multiple families who need an inexpensive ADU as soon as possible. Prefab ADUs are usually not very big, but they’re very durable and easily resist harsh weather conditions. It makes them a great place to hide during a thunderstorm, a hail, or a heavy wind.

ADU Housing

A small additional home is an amazing long-term investment that will make the price of your whole property way higher and give you the possibility to use your territory much more efficiently. Such a building will give you and your family a much better quality of life and more convenient living conditions.

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 ADU in the Bay Area?

    It differs depending on many factors, such as the building company, the materials, the ADU type, and so on. The full price of constructing an ADU in the Bay Area varies from 250 000 to 500 000 dollars, but in some cases can be cheaper or more expensive.

    How much does it cost to build a 400 sq ft room in ADU?

    Building one square foot of an ADU in California costs from 350 to 900 dollars. So, a 400-square-foot room will cost from $140 000 to $360 000, but, as we’ve already said in the previous answer, prices can differ from that. These are only the average numbers.

    Do I need a permit to build an ADU in California?

    Yes, a permit is required, but if you choose a good building company, expert-level help will be provided to you, and obtaining the permit will be much easier. One such company is A+ Construction & Remodeling.

    Other Renovation Services in Carnelian Bay

    Serviced ZIP codes: 95604, 96140

    #1 ADU Builder with the most permits in the Sacramento area

    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.