Even if you’re not familiar with the term “accessory dwelling unit” (ADU), you may have thought about building one. It’s simply the name for an additional housing unit built on a residential property. 

ADUs are becoming increasingly common, and there are many types of these units to choose from. One of the major decisions you’ll have to make when building your ADU is whether to go with an attached or detached style. Use this guide to make your choice.

Research Your Local Building Codes

When building an accessory dwelling unit, work closely with your contractor in creating its design. An experienced builder can give you specific information about how building codes vary based on the type of structure. For example, you might have to consider fire resistance, square footage, and entrance locations as you plan an attached ADU.

The process of building an ADU that’s detached from your primary residence involves many considerations. You might have to set the structure a specific distance from the property lines. Zoning laws might affect how you can use the structure. Your contractor will help you design an ADU that meets all zoning laws and building code requirements.

Consider the Intended Size of Your ADU

Before you search for “accessory dwelling unit builders near me,” you should brainstorm your project. Consider factors like the size and layout of the unit to make sure your first consultation is as productive as possible. 

When building an attached structure, you might be able to create a larger space. There may be size limitations for a detached unit due to how big your lot is and the shape of your property.

Plan for the Intended Use of the ADU

Think about the potential occupants of your ADU. If you want to use the home for rental income or the market value an ADU adds, opt for a more inclusive unit with a kitchen, full bath, and other amenities. You may want to create a higher level of privacy as well. Doing so could mean building a detached unit several yards from your main residence. 

However, perhaps you’re interested in something more intimate when building a unit for an adult child or an in-law. In this case, an attached unit will more properly meet your needs. Accessory dwelling unit plans for a guest house won’t need as many features as the plans for a detached rental unit.

Assess Utility Needs for the Accessory Dwelling Unit

A detached ADU offers a little more free space for the construction process. Since any type of construction generates bulky waste, you should consider recycling and disposal options for the project. This might involve setting up dumpster rentals on your property.

You might also need extra space to run utilities to accessory dwelling units. If there isn’t enough room to run underground cables, pipes, and other equipment, an attached unit could be the better option. Extending your existing utility equipment to an add-on ADU might only require minor work.

Start Planning Your ADU Project

StreamHome Construction LLC is an experienced builder with a portfolio of attached and detached ADUs. When you’re planning your accessory dwelling unit, we can help you with its design and construction. Schedule a free consultation to get started.