Casita Construction Costs: A Simple Breakdown

Casita Construction Costs in AZ

In 2020, Americans spent over $420 billion on home improvements and remodeling.

That number is a 3% increase from the previous year and while that might not seem like a big number, the economy was also on the decline during the pandemic at this time. 

More than ever in the United States, people dedicated time and money to improving their living spaces. 

Whether you’re planning to work from home or you want to make some extra cash with a rental suite, a casita might be the right option for you.

Casita construction costs vary depending on a few factors. 

Keep reading to learn more about what costs go into building a casita. 

What Is a Casita?

A casita is a type of guest house that is built on your property but is detached from the main house.

Derived from the Spanish word “little house”, casitas can be used for a number of different things. 

Unlike an in-law suite that is inside the main house, casitas offer their own private space on the property.

They are usually equipped with their own kitchenette and bathroom, among other features.

This makes them versatile for different uses and possible investments.

Here are some ways that you can use a casita on your property:

  • Rent it out during high travel season 
  • Use it as a suite for guests 
  • Convert it into a home office 
  • Use it to help pay the mortgage 
  • Increase property value 
  • Use it as storage 

These are all great ways that you can use a casita on your property.

You can get as creative with its uses as you are with the design. 

The price for a casita will vary depending on your budget. 

How to Breakdown the Cost of a Casita 

Casita construction costs include many different factors.

It will vary depending on the features you want, how it will be used, and the type of construction. 

Permits and Approval 

Most states will require you to get permission to build, even if it is on your own land. 

Whether it is residential or commercial property, each state and even city can have different rules and regulations for building.

Be sure to get authorization for renovations before you start, otherwise, you could end up with a hefty fine from the city. 

You will need to know the layout, the measurements, and the height of your structure, in order to obtain a building permit.

Do your research to find out the laws in your state before you build.

Additionally, you want to factor the cost of the permits into your budget.

Mariano & Co can give you more information about home additions and provide custom home remodeling services. 

Decide on a Budget

Casita design ideas are endless but you have to be realistic about your budget.

A casita construction budget will be determined by what you want to use it for. 

If you are using it for storage, you might not need to build a bathroom.

If you are going to use it as a suite for relatives, you might not need a kitchen as they will be dining in the main house with you.

Consider what features of the casita are the most important for how you will use the space. 

These are important factors that will impact your budget. 

The average price for building a casita is $150 – $500 per square foot but that depends on the size, the layout, the materials, and the amenities. However, these numbers do not account for the budget you need for foundation and installation. These will be costly factors to your casita built. 

Remember that a casita can be an investment for future profit. Speak to local contractors in your area to ensure that you get an accurate estimate of the cost before you decide to build. 

Custom Building a Casita 

Custom building a casita will be a costly option. This will be no less than building a new house. 

If you consider the average of 150 – $200 per square foot, the starting cost for a casita around 500 square feet is $75,000.

Again, this depends on the quality of your materials, the size of the house, and the amenities. 

Remodeling an Existing Structure

Using an existing structure is a great way to save money on building a casita.

You can use a garage or a shed as a budget-friendly option.

It can save you money because there is already a foundation and some structure to work with. 

There will be work needed, such as drywall, flooring, windows, and insulation, which will take up the majority of the budget.

However, it might change the permit laws and make it easier because it is an existing structure.

Depending on the materials you use and how much labor is needed, it will be easier to stay on budget. 

Adding Extra Features 

Casita’s common features depend on what you are using the space for.

If you want a fully operational rental, you will need to have amenities that make it livable.

Here are some casita design ideas that can level up your casita: 

  • Fully operational kitchen 
  • Fully functioning bathroom 
  • Laundry room 
  • Outdoor deck 
  • Pergola 
  • Fireplace

These are ways that you can make the casita more liveable and add to its value.

There are big and small features that you can add to make the most out of the space. 

Knowing the Cost Before Investing in a Casita 

A casita can be a great way to make some extra money and utilize your property in new and exciting ways.

Be sure to decide on a budget, choose the right casita construction company, decide how you will build the casita, and obtain all necessary permits before you get started. 

For custom building and remodeling services, contact Mariano & Co and get your free estimate to build the casita of your dreams.


Are you looking for a  casita builder in Mesa to help execute your project? The team at Mariano & Co. is committed to providing each client with a 5-Star experience. Call (480) 287-4096 or request an estimate online today!

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