A Step-by-Step Guide for Installing an ADU

3 October 2023
 Categories: Construction & Contractors, Blog


ADUs, or accessory dwelling units, are steadily gaining popularity as an alternative to traditional home additions or apartment rentals. If you’re considering building an ADU, you’re not alone. ADUs are a great way to add value to your property, generate rental income, or simply provide additional space for your family or guests. This blog post guides you through the crucial steps involved in the installation of an ADU, from meticulous planning to successful completion. 

Conduct an Initial Feasibility Study 

Begin by analyzing your property’s potential for an ADU. Ensure that you’ve got sufficient space for the unit and that your zoning laws permit it. Consult your local building department and prepare to obtain the necessary permits for construction. Make sure that you also hire an architect to draw up the design plan and get your ADU blueprints.

Clear the Site 

Once you’ve got the permit, you’ll have to clear the space and prepare it for construction. You may need to excavate, check the soil quality, place drainage structures, and install the foundation and framework. These are crucial steps that will ensure the ADU is well constructed and durable.

Framing, Plumbing, and Electrical Work 

After the foundation is set, begin the framing process. It’s also a good idea to consult with your builder and finalize the HVAC, plumbing, and electrical systems layout. Once the framing and rough inspections are completed, cover the walls and install the roofing.

Finishing Touches 

This is where the building process gets exciting. Add insulation and drywall to the walls, ceilings, and floors. Install doors, windows, flooring, cabinetry, and appliances. This is the time to design the interior space to reflect your aesthetic and needs. It’s also essential to get clearance from the building departments throughout the process as necessary.

External Touches 

Once the ADU interior is complete, it’s time to think about the surrounding external spaces. This can include concrete or pavers, landscaping, fences, and exterior lighting. Ensure that the space is easily accessible and that it complements your property's design.

Building an ADU is a major undertaking, but with a clear plan and the right permits, it can be a great financial investment and a new source of income. If any of the steps seem complex or too much to handle, it’s essential to seek professional guidance to ensure the ADU is structurally sound and up to code. This step-by-step ADU installation guide should have provided you with the essential knowledge you need to get started. Contact a company that offers ADU installation services to learn more.