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ADU Builders Redwood City

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Redwood City ADU Design & Build

Custom ADU Cost Calculator

These calculations are derived from the 2023 Big Data Research, and provide a general approximation.
Total Price
$115,485
$546/SF
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250 SF
Total Price
$166,441
$416/SF
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400 SF
Total Price
$252,799
$338/SF
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house
600 SF
Total Price
$361,964
$302/SF
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house
750 SF
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The Path to Your ADU

STEP1:
CONSULTATION
Choose between in-house or online free meeting with our ADU Consultants to discuss your project
STEP 2:
ESTIMATE
Our experienced team drafts a detailed estimate, which we then finalize together to align with your vision and budget
STEP 3:
CONTRACT
We sign a contract, finalize the designs, and our team kicks off the plans and permit process
STEP 4:
CONSTRUCTION
Relax as our efficient construction process unfolds, ensuring a stress-free experience

Our ADU recent projects

An accessory dwelling unit (ADU) is a smaller second house situated on the same property as the primary home. These houses, also known as granny flats or in-law suites, are becoming more popular nowadays. They’ve got plenty of advantages — for instance, an ADU can be a great source of passive income or an independent living space for your elderly parents.

There are numerous ADU design options, so anybody can find something suitable. In this article, we’ll talk about the most popular of them and also about a reliable, professional contractor that can build a top-quality ADU in Redwood City, San Mateo County.

ADU Contractor Redwood City, California

As we’ve already said, there are several kinds of ADUs. The choice is pretty wide, and there are layouts for any taste.

Let’s look at the most popular ones in San Mateo:

JADU (Junior ADU)

A JADU is the smallest ADU type. But that doesn’t mean it’s worse — it’s also a full-fledged, comfortable living space. One of its primary advantages is its price — it’s cheaper than a classic accessory dwelling unit.

Attached ADU

An attached ADU is also very popular and useful. It has a common wall with the primary residence, so every dweller can easily enter it — although it has a separate entrance. It can be an ideal option for your elderly relatives since it would give you more possibilities to care for them.

Detached ADU

A detached unit is the most classical ADU construction. It shares the property with the main house but stands apart from it. It can sometimes be more expensive than other ADU options, but it’s also more convenient for many purposes, such as renting it out or converting it into a mini office.

Internal ADU

An internal ADU is an additional dwelling unit situated inside the primary residence — for example, on the second floor, in the basement, or in the attic. If you want to build such an ADU, you’ll need to study your local regulations very carefully because some counties don’t allow this.

Garage conversions

Converting already existing structures, such as garages, is in some cases a lot easier than building ADUs completely from scratch because the main construction is already there. It can be an amazing guesthouse or a music studio.

Once you’ve selected the best ADU type for yourself, you’ll have to find an experienced and reliable construction company. Of course, some people build ADUs themselves, but we won’t recommend it to you if you’re not a highly skilled professional.

One of the best home builders in Redwood City is ADU Builders Bay Area. They have immense experience in ADU construction and will easily build your dream ADU.

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Accessory Dwelling Unit Builders Redwood City, CA

Any new ADU construction project requires an ideal understanding of local laws and regulations. People who build an ADU in Redwood City should know perfectly which regulations determine the building process. Highly competent contractors can obtain all the permits in one submission, reduce the time for construction projects, and give you valuable design advice.

Although constructing an ADU is easier than building a full-size house, we still don’t recommend you do it on your own. If you lack the necessary skills, there may be a high risk of committing lots of grave mistakes. They’ll make the process much longer and significantly increase its costs. Also, the quality of your new ADU construction won’t be as high. So, it’s much better, faster, and cheaper in the long run to hire professional home builders.

Sadly, real top-level specialists in this field are quite rare nowadays. But ADU Builders Bay Area is definitely one of them. This company’s staff successfully performs even the most difficult ADU construction tasks.

ADU Construction Advantages

Accessory dwelling units are so popular for a reason. They have lots of important advantages.

Here, you can see the main ways to benefit from a granny flat:

So, there’s no doubt that granny flats are extremely useful and multifunctional structures. Even a small accessory dwelling unit can give you endless possibilities. To get a really durable and high-quality ADU, you’ll need to hire top-level home builders. Now, we’re going to tell you about one in Redwood City, CA.

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ADU Builders Company, Redwood City

Whether you want to use your new ADU as a guest house, an extra living space for your aging parents, or a home office, it should have superb quality. Only in this case can you use the property’s potential to its fullest. One of the best and most reliable home builders in Redwood City, CA, is ADU Builders Bay Area. This company also operates in other places in California, such as the San Francisco Bay Area, San Jose, Santa Clara, and many others.

Here are some reasons to choose us:

  1. Experience and professionalism. Our specialists have all the necessary skills, even for the most complicated ADU project. We always select the best materials but try to keep everything cost-effective.
  2. We obtain all the needed permits. As you may already know, local regulations and building codes vary from place to place. We perfectly know all the regulations and ADU laws of Redwood City, CA (such as impact fees, the setback from property lines, and so on). We’ll easily go through the permitting process to ensure that the construction is completely legal.
  3. Large assortment of ADU construction services. We build ADUs of every type — detached ADUs, basement conversions, attached ADUs, and so on. We can either remodel an existing structure or construct an entirely new house. And, of course, we carry out all the parts of the building process — from making the initial design and floor plan to installing plumbing and electrical systems.
  4. We don’t hide any costs. We are absolutely honest about all our prices and don’t include any unpleasant surprises in our projects. Also, we offer a free consultation.

Contact ADU Builders Bay Area to order our top-notch services in Redwood City, CA. Below, we’ll give you more detailed information about the main ones.

Redwood City, CA, Accessory Dwelling Units Construction Services

ADU Builders Redwood City offers all the services that are necessary for a complete ADU project in San Mateo County. With us, you’ll get a totally ready living space.

Let’s look at some of the build services that we provide:

  1. Obtaining the permits. Our specialists know how to get all the building permits in Redwood City — they have vast experience in it.
  2. Creating an ADU design. We are developing the complete plan for the new ADU, paying close attention to every square foot of it. And, of course, we thoroughly discuss it with the customer!
  3. Preparing the place for construction. This stage includes excavation, soil leveling, and removing all the unnecessary objects from the building site.
  4. Project management. This service consists of many things — planning the budget, buying materials, contacting the suppliers, etc. During every step, our specialists always keep you informed about all the details of the process and possible changes in it.

If you want a cozy, comfortable, and top-quality accessory dwelling unit in San Mateo — ADU Builders Bay Area is always there for you. We’ll construct a dream home for your guests, aging family members, or rental income. We’ll do everything as you wish, and even better!

Frequently Asked Questions — FAQ

What is the average cost to build an ADU in California?

On average, constructing an ADU in California costs from $100,000 to $250,000. The exact price depends on various factors, such as ADU type and square footage. For example, a detached ADU can sometimes be more expensive than an attached one or a garage conversion.

What are the new laws for ADUs in California in 2023?

In 2023, several new laws for ADU construction were introduced. First of all, it's the so-called 60-day rule — local agencies have to accept or decline an ADU plan within 60 days. Secondly, the height restrictions underwent a revision. The biggest height of a detached unit can be 18 ft, attached — 25 ft. The maximum for most other types is 16 ft. Also, there was a redefinition of setbacks. Senate Bills 897 and 9 also introduced some important changes. For instance, non-confirming zoning conditions don't have restrictions anymore, and under some conditions, you can split your lot into two. Moreover, impact fees have become much smaller (or absent, in some cases), and owner-occupancy is no longer obligatory. Of course, it's not all — the changes are much more numerous.

Is it worth it to build an ADU in California?

Of course! ADUs have many benefits. It's a completely new space with all the conveniences that you can use in different ways. For instance, you can rent it out, give it to your aging family members, use it as a guesthouse, an art studio, or a workplace, convert it into a mini gym or a home cinema, etc. The possibilities are truly infinite. In addition to that, an ADU would significantly increase your property value.

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

Yes, to create an accessory dwelling unit (ADU) in California legally, a building permit is necessary. You'll be able to get it only if your plan meets all the requirements, such as the size of the building, its height, and many others.

ADU Builders Bay Area is recognized by

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At ADU Builders Bay Area, we bring your construction visions to life. Our expertise lies in crafting ADUs, complete home renovations, and initiating new builds for both residential and commercial spaces. Our dedicated team prioritizes swift, accurate solutions customized to your requirements.

Our commitment to dependable craftsmanship, professionalism, and meticulous attention to detail is highly valued by our clients. Leveraging our deep industry experience, we efficiently address and resolve potential obstacles for seamless project completion. Proudly displaying our certifications and recognitions, we eagerly await the opportunity to collaborate with you on your next project.

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