ADU stands for accessory dwelling unit. Built on property with an existing house, ADUs are smaller units that are used for visiting family or as an additional income source when rented out.

What does ADU stand for?

ADU stands for accessory dwelling unit. Which is a unit built as a separate additional unit.

Can I build a guest house on my property?

Yes, you can build a guest house on your property. To be safe you should make sure you are in compliance with state and local building ordinances.

Can I list ADUs on Airbnb?

Yes, renting out your property when it is not being used on sites like vrbo or airbnb is a great way to use the extra space efficiently.

Do ADUs increase property value?

In addition to creating a supplemental income stream, ADUs can also increase the value of your property. Some homeowners have seen as much as a 20% increase in the value of their home.

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Accessory Dwelling Units (ADUs)

Accessory Dwelling Units (ADUs)

Every kit home model offered by Mighty Small Homes can become your perfect ADU. Easily build a new mother-in-law suite, office, studio, or rental on your property.

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Our Kits

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a tiny home kit used as an accessory dwelling unit ADU

Versatile Styles and Layouts

Customize your floor plan for any kit from Mighty Small Homes to fit any space on your property as an accessory dwelling unit.

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Choose From Six Models

Our prefab ADU kits come in six different designs. Select your favorite model, then customize the layout and add your choice of windows, doors, porches, lofts, and more.

Different house kits for sale by Mighty Small Homes

Two-Story Kits with a Garage

Need an ADU that can store your vehicles? Our Carriage model features an apartment above a garage, making it a popular choice for homeowners who want extra storage space.

More Space, Income and Savings

Whether you plan to build a new short-term rental, in-law suite, pool house, or workspace, any of our high-efficiency kits can be customized to match your vision for an ADU.

interior photo of a carriage house kit ADU

Efficiency is Built-In

Our prefabricated ADU kits are 2-3 times more energy-efficient than traditional, stick-built ADUs – and stronger. You can expect to save up to 60% on your energy costs.

Easy to Build Yourself

Building our house kits as accessory dwelling units on your property is quick and easy. If you have basic carpentry skills and some handy friends, you can be under roof in 1-2 days.