April 21st, 2025 Construction An Accessory Dwelling Unit (ADU), often referred to as a granny flat, backyard cottage, or in-law suite, is a secondary housing unit on a single-family residential lot. ADUs have become increasingly popular as a flexible and affordable housing solution. Whether it’s for renting out, housing family members, or as a home office, understanding the different
types of ADU can help homeowners make the best decision to suit their needs. Here’s a detailed look into the various types of ADUs, and how ProStruct can assist in building the perfect ADU for your property.
Types of Accessory Dwelling Units (ADUs)
ADUs come in various forms, each with its own set of benefits and challenges. Here are the most common types:
Detached ADUs
Detached ADUs are standalone structures separate from the main house. These units often come in the form of a backyard cottage or a granny flat. They offer plenty of privacy and independence from the main residence, making them ideal for rental purposes or housing guests.
Attached ADUs
An
attached ADU is connected to the main house. It might share a wall and have a separate entrance or be an extension of the home. These are often less costly than detached units since they can utilize existing utilities and structures.
Garage Conversion ADUs
Transforming a garage into a living space is a practical example of a
garage conversion ADU. This type isn’t just economical but also space-efficient, repurposing an area that might not be in use. These conversions typically involve adding insulation, windows, and proper flooring to convert the space into a comfortable living area.
Above-Garage ADUs
For homeowners looking to maintain their garage space for parking or storage, constructing an
above-garage ADU might be the solution. These units are built on top of the garage, offering separate living quarters without sacrificing ground space.
JADUs (Junior Accessory Dwelling Units)
Junior Accessory Dwelling Units (JADUs) are smaller than standard ADUs and are typically converted from part of the existing home, such as a bedroom. JADUs allow for a small kitchenette and possibly separate entrances, albeit they usually have shared central systems like heating and plumbing with the primary home.
Why Choose an ADU?
Building an ADU can be a great investment and asset in many ways:
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Increased Property Value: ADUs can significantly increase your property’s market value.
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Passive Income: Renting out an ADU can provide a steady source of passive income.
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Flexible Use: An ADU can be used for housing family members, as a home office, or a space for creativity and relaxation.
How ProStruct Can Help with Your ADU Project?
At ProStruct, we specialize in bringing your ADU vision to life. We offer expert structural and civil engineering services for your ADU while also providing trusted referrals for other professionals like architects, designers, and contractors.
Learn more about our services.
Choosing the right type of ADU for your property depends on your specific needs, budget, and available space. Detached ADUs offer privacy and independence, while attached ADUs and garage conversions are cost-effective solutions. ProStruct’s expertise in engineering can ensure that whatever ADU type you choose, the result is both practical and appealing. For comprehensive guidance and efficient engineering services,
Contact us today! to explore your options and start your ADU project.
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