How much does it cost to build an ADU in California?

Suppose you want to become a homeowner in California and are wondering about the cost of building a home. Then you have come to the right place. Myadu4less has come up with some great cost-saving plans to build your home. However, building traditional homes has now become possible. However, prefabricated homes, or ADUs, have replaced traditional homes. You can obtain them quickly, and they are less expensive.

Over ten years have passed since we began working in this field. If you are considering extending your current space with accessory dwelling units, we can assist. But before you begin the process, you should consider the cost of building an ADU in California. This blog will further explain the options available for financing an ADU project. With this information, you can choose whether it is the best course of action to add an ADU to your property.

What is an ADU?

The term \”accessory dwelling unit,\” or ADU, refers to a self-contained unit. It is typically added to an existing property. However, it is a separate dwelling from the main home. You can use it for various purposes, including providing extra living space for extended family members, renting out a unit, or using it as office space. In addition, as in California, ADUs are becoming increasingly popular as homeowners look for ways to add value to their homes and increase their rental income. 

Benefits of building ADU

ADUs offer many advantages, such as:

  •  More efficient land use and increased housing options.
  •  They are also cost-effective, as they do not require constructing an entirely new building.

The Cost of Building an ADU

Building an accessory dwelling unit (ADU) in California is a great way to add more space and value to your home. But how much does it cost to construct an ADU? The most significant costs associated with building an ADU are the permit fees, which vary by location. For example, ADU construction costs in Los Angeles require a permit fee of $20,000, while San Francisco requires a permit fee of $30,000.

Moreover, other costs associated with building an ADU include labour costs (which can vary widely), materials, furniture and fixtures, appliances, and any additional features you may want to add. However, consider additional expenses such as utility connections, landscaping, and taxes when budgeting for your ADU. Furthermore, you can also hire a contractor from myadu4less to build your ADU. Make sure to conduct thorough cost research and obtain several bids for comparison. For a price quote, you can always call us or visit our website.

How to finance an ADU

Understanding all the options available for financing an accessory dwelling unit is important. It\’s due to how challenging the financing process is. However, various financing methods are available, including traditional mortgages, loans, home equity lines of credit, and grants. Traditional mortgages are one option for financing an ADU for those with good credit. The home itself secures this type of loan and typically requires a down payment of 20%. Traditional mortgages generally have a fixed rate and monthly payments distributed over the loan\’s life.

Loans are also available for financing an ADU. These loans can come from banks, credit unions, or other lenders and may require collateral, such as a car or other asset. Loans usually have higher interest rates than mortgages and often require monthly payments over a set period. Myadu4less also provides plans for financing. You can visit our website or call us for the most affordable plans to build your own ADU. 

What is the cost of a San Diego granny flat?

The cost of an ADU in San Diego depends on several factors. The size of your home is one aspect that will influence the cost of construction. If your home is large, you can knock down a wall or two and add extra room for a small ADU. However, if you are considering adding a room, the cost to build an ADU will depend on its size and whether or not you plan to make any changes to the structure of your home. A small addition that doesn\’t affect structural integrity could cost less than $10,000. Similarly, it could cost thousands more if you want major renovations, like adding a new deck or extending the kitchen or bathroom into the backyard.

You can finally build an ADU in California on your own with myADU4Less. For more information and specific pricing, you can always give us a call or visit our website. 


  • What are the requirements for an ADU in California?

Finding out if your property qualifies as an ADU is the first step you need to take. For a building on your property to be considered an ADU, it must meet certain requirements:

  • It must be attached to the property\’s owner\’s main residence and have separate access from the main residence.
  • Obtain a permit before building an ADU.
  • It must have three stories or fewer.
  • Adequate parking for both cars and bicycles (or other vehicles).
  • What is the Cost of building an Accessory Dwelling Unit?

The answer depends on several factors, such as the size of the unit, the location, the materials used, and other amenities included. Generally speaking, the cost of building an ADU in California will range from $50,000 to $150,000. 

  • How much does an ADU permit cost in California?

Before building an ADU in California, you need zoning and building permits, depending on your location. Permit fees range from $25 to $4000, while building permits can cost between $450 and $15000.

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

In California, the construction of an ADU takes about two months. That\’s because you must wait for the state\’s building department to approve your plans and then for your contractor to start the construction. The good news is that this procedure usually goes smoothly and quickly. However, you can use your new addition with little hassle once it\’s complete.