Accessory Dwelling Units (ADUs) Explained

Are you looking for a way to add more living space to your property? Or perhaps generate additional rental income? If so, you may want to consider building an Accessory Dwelling Unit (ADU). These secondary living spaces are becoming increasingly popular among homeowners, but what exactly are they and how do they work? In this article, we will explore the concept of ADUs and explain everything you need to know about them.

What is an Accessory Dwelling Unit?

An Accessory Dwelling Unit, also known as a granny flat, in-law suite, or backyard cottage, is a self-contained housing unit that is built on the same lot as a single-family home or within the existing structure. It can be attached to the main residence, such as a garage conversion, or detached, like a backyard cottage. ADUs are complete with their own entrance, kitchen, and bathroom, and can be used as a permanent residence by a family member or as a rental unit.

Types of ADUs

There are three main types of Accessory Dwelling Units: attached, detached, and within the house. Each type has its own advantages and disadvantages, and the right choice for you will depend on your specific needs and the regulations in your area.

Attached ADUs

An attached ADU is built as an addition to the main house, using an existing structure such as a garage, basement, or attic. This type of ADU is often more cost-effective to build since it utilizes the existing foundation, walls, and roof of the main house. However, it may also require more extensive renovations and incur higher construction costs.

Detached ADUs

A detached ADU is a standalone structure that is built separately from the main house. It can be located in the backyard, an unused space on the property, or even above a garage. Detached ADUs offer more privacy and flexibility since they are not connected to the main residence. However, they may require additional permits and construction costs, as well as complying with any setback regulations.

ADUs within the House

This type of ADU is created by converting an existing space within the main residence, such as a basement, attic, or extra room. It is the most affordable option, as it does not require any additional construction. However, it may still involve significant renovations and will need to meet all building codes and regulations.

Why Consider Building an ADU?

There are several reasons why homeowners choose to build ADUs, including:

Additional Rental Income

One of the most popular reasons for building an ADU is to generate additional rental income. By renting out an ADU, homeowners can earn a steady stream of income, which can help cover mortgage payments, property taxes, and other expenses.

Extended Family

ADUs also offer a convenient and cost-effective way to accommodate extended family members, such as aging parents or adult children. Having a separate living space within the same property allows for privacy and independence while still being within close proximity to loved ones.

Increase Property Value

Building an ADU is an excellent way to increase the value of your property. With the demand for affordable housing on the rise, having an ADU can make your property more attractive to potential buyers, resulting in a higher resale value.

Regulations for Building an ADU

Building an ADU may seem like an attractive option, but it is essential to be aware of the regulations and requirements in your area before going ahead with the construction. Each city and municipality has its own set of rules and restrictions, so it is crucial to do your research and obtain the necessary permits before building an ADU.

Some key regulations to consider include:

Size

The size of an ADU is usually restricted to a maximum of 1,200 square feet or a percentage of the primary residence’s total square footage. Some areas also have a minimum size requirement for ADUs, so it is crucial to check with local authorities to ensure compliance.

Parking

Many cities require that an additional parking space is provided for the ADU. This can be an off-street parking space or a garage. If space is limited, a parking exception or waiver can sometimes be obtained.

Zoning Laws

Zoning laws dictate where an ADU can be built on your property and its location in relation to the main house. These laws also specify the type of ADU (attached, detached, or within the house) that is allowed in your area.

The Bottom Line

Accessory Dwelling Units offer numerous benefits for homeowners, from generating rental income to providing affordable housing for extended family members. However, before deciding to build an ADU, it is crucial to research the regulations in your area and consult with a professional to ensure compliance and avoid any legal issues. With proper planning and execution, an ADU can be a valuable addition to your property and enhance your overall living experience.