Best Custom Accessory Dwelling Units ADUs Foster City CA

We don't just build backyard homes.

We design them to be the most luxurious and functional living spaces in your neighborhood!

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Best Custom Accessory Dwelling Unit ADU Foster City CA

Our professional team of experts will take care of the process from start to finish.

We're experts in design and construction of accessory dwelling units, or ADUs. We make the process easy for you by taking care all aspects from start to finish so your new space is exactly what YOU want it too be!


We are a custom home builder that builds detached, or attached, small and completely functional living spaces in your backyard. If you have the space to use for a secondary unit it’s an excellent idea as well! We can work out designs without demanding too much room, we'll work within whatever limitations there may be.


We don't just build backyard homes. We design them to be the most luxurious and functional living spaces in your neighborhood!

Is it time to expand?

Then it's time to consider an ADU built by the BEST Custom Accessory Dwelling Unit ADU Foster City CA Team - ELS Home Builders

Benefits of a Custom Accessory Dwelling Unit ADU Foster City CA


If you are looking to earn extra income without the problems of investing in a separate property or you need more living space for you or a loved one, then an accessory dwelling unit or ADU might be the answer!


Here are 5 top reasons for building an ADU on your property. 

  1. Rental Unit to Earn Passive Income
  2. Increased Property Value
  3. Low-Cost Housing for Senior Family Members & Caretakers
  4. Adult Children & College Graduates
  5. The Ultimate Home Office or Workout Space


Making the decision to invest in an ADU is the easy part. Finding someone to turn that decision into a dream accessory dwelling unit without it turning into a nightmare is where we come in.


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Best custom accessory dwelling unit ADU Foster City CA
Benefits of a custom accessory dwelling unit ADU Foster City CA

Why choose us to design and build your ADU?


At ELS Home Builders, our architects, engineers, and designers are professionals with years of experience and are ready to help you create the Accessory Dwelling Unit ADU of your dreams. 


Our wide range of vendors, both full custom and semi-custom, allows us to accommodate any design features you prefer, from traditional to contemporary.


When it comes to your Accessory Dwelling Unit, we believe that functionality and beautiful design are equally important. Only you know what design features best represent your style and taste, so we partner with you to find and achieve the look and feel you want for your ADU. 


ELS can save you money by purchasing materials at direct cost, which we then pass on to our customers, setting us apart from our competitors.

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Multigenerational Living


Being a top-rated home builder in the area, we have created Accessory Dwelling Units that fall under the category of Multigenerational Living, a home where more than two generations of the same family live at the same address.


Multigenerational housing, or next-generation housing, has gained in popularity in recent years. Families can stay close to each other and utilize financial resources more efficiently.


Multigenerational Living is also a great solution for families that need help with babysitting or for parents who live alone. We can design it for you, and ELS HOMEBUILDERS can work with you to find the perfect layout.


Mother-In-Law-Suite


Mother-in-Law-Suites are common conversions for a parent to move into. This is the reasoning behind the name. Any basement or garage can be converted into a guesthouse, or a detached guesthouse could be built.


This type of living quarters usually comes with a kitchen and bathroom, so everyone has their own space and privacy. This is a good solution for an aging parent or a nanny who is needed on-site.

Rental income can be generated from this space instead when it is used as a rental property. Don't let the name fool you; it doesn't have to be your mother-in-law who lives here.




ACCESSORY DWELLING UNITS can also be rented to paying guests, either on a short-term or long-term basis.

 The demand for Accessory Dwelling Units is increasing.

If you need custom homes or a rental income addition to your current property, ELS HOMEBUILDERS can help.


While other builders are just beginning to learn about ADUs, we have extensive experience and expertise in them. An ACCESSORY DWELLING UNIT (ADU) offers many benefits. We'll explain these to you and then build and design the perfect one for you.


Granny Flats


There are several types of ADUs, as you probably already know. The granny flat is one common type.

In essence, it's a self-contained living area that is usually located on the grounds of a single-family home and is typically used for aging parents to move into.

Sometimes it is detached from another residence, but it can also be attached. The granny flat can also be considered a tiny home.

ADUs Are Good for People and Places

While there are many good reasons to invest in an ADU one question that is often asked is "Are ADUs actually good for people and places?"

The simple answer is a resounding YES as you can read in this article from the AARP.

AARP Article -read now
  • ACCESSORY DWELLING UNITS: what they are and why individuals build them

    An ACCESSORY DWELLING UNIT is a truly simple and old concept: having a 2nd small dwelling right on the very same premises (or attached to) your single-family home, such as:


    • a house over the garage
    • a tiny house (on a foundation) in the yard
    • a basement living space

    ADUs might be an old idea but they're returning, and they have lots of names. Planners call them ADUs (ACCESSORY DWELLING UNITS), but they're also known as granny flats, in-law units, laneway houses, secondary dwelling units, and a hundred other names.


    People construct them for a number of reasons, however the most typical objectives, according to one research study, are getting income through leasing and providing a place for a relative to live.


    Numerous individuals buy homes and live in them for years, their actual needs alter over time. Many American homes are too big for 1- or 2-person homes, which is too bad, since size is most likely the most significant single element in the environmental effect of a home.


    If you have actually a good sized house, and a fairly good sized ADU, you've most likely got a quite ecological combination with some social benefits too. You could have your best friend, your mom, or your grown kid, reside with you. This kind of flexibility and casual assistance could really help as the nation's population ages. The majority of people wish to stay in their homes as they age, but finances and style can be problematic. An ADU might help aging people satisfy their requirements without having to move.


    In lots of localities you can get legal rental income from a permitted ADU, or, if you want, you can live in the ADU and rent the other dwelling. Either way, the financial, and ecological benefits are obvious.


    For more reading on the importance of ADUs please download this PDF:

    Understanding Accessory Dwelling Units

    and Their Importance

Our expert team has the skills and experience to ensure you get exactly the Accessory Dwelling Unit ADU what you want


Once the craftsman are ready to start work and material have been chosen, ELS and team will begin to execute the plan. 


We have a large network of many different skill sets and professionals in the building trades to pull from any time an. unexpected situation arises. We lean heavily on experience.


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Custom Accessory Dwelling Unit ADU Foster City CA

Examples of Accessory Dwelling Units - ADUs that we've created for our clients

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