Small in size, with a big impact.
Accessory Dwelling Units, ADUs for short, are great projects that align with the OUTSIDE values of creating homes that benefit people, profit, and planet. ADUs provide housing opportunities without needing additional infrastructure, they provide rental income that benefits homeowners, and their small footprints mean we can design them to be net-zero energy ready homes, which is great for the planet.






What is an ADU?
Accessory Dwelling Units, or ADUs, refer to a second home on a property that already has a main house. Typically these are smaller than the main home and are detached structures located in the backyard. However, there can also be internal ADUs, like converting a basement into a separate apartment or renovating an attached garage into a new living unit.
Most often ADUs are built by homeowners who want to add a unit to their property to earn rental income, use as a guesthouse, or for a relative to live in. People also build these for themselves in order to downsize and allow them to rent out the larger main home. With the growing popularity of ADUs around Portland and across the country, many new houses are being built with ADUs as part of the development. We see many new homes include basement ADUs as part of the selling point for new homeowners.
Top Reasons People Build ADUs
Rental Income.
It all begins with an idea. Maybe you want to launch a business. Maybe you want to turn a hobby into something more. Or maybe you have a creative project to share with the world. Whatever it is, the way you tell your story online can make all the difference.
Aging-in-Place.
It all begins with an idea. Maybe you want to launch a business. Maybe you want to turn a hobby into something more. Or maybe you have a creative project to share with the world. Whatever it is, the way you tell your story online can make all the difference.
Downsizing.
It all begins with an idea. Maybe you want to launch a business. Maybe you want to turn a hobby into something more. Or maybe you have a creative project to share with the world. Whatever it is, the way you tell your story online can make all the difference.
Affordable Housing.
It all begins with an idea. Maybe you want to launch a business. Maybe you want to turn a hobby into something more. Or maybe you have a creative project to share with the world. Whatever it is, the way you tell your story online can make all the difference.
Cost of Building an ADU
Design Fees
It all begins with an idea. Maybe you want to launch a business. Maybe you want to turn a hobby into something more. Or maybe you have a creative project to share with the world. Whatever it is, the way you tell your story online can make all the difference.
Permit Fees
It all begins with an idea. Maybe you want to launch a business. Maybe you want to turn a hobby into something more. Or maybe you have a creative project to share with the world. Whatever it is, the way you tell your story online can make all the difference.
Construction Costs
It all begins with an idea. Maybe you want to launch a business. Maybe you want to turn a hobby into something more. Or maybe you have a creative project to share with the world. Whatever it is, the way you tell your story online can make all the difference.
ADU Development Proforma
If you are thinking of building an ADU as an investment and would like to calculate your expenses, revenue, and return on investment, this ADU Development Proforma Worksheet will help give a financial picture of your project.
Let’s Do This
Ready to get started? Fill out the form below and tell us about your project. One of our ADU design experts will get back to you shortly. Our team is waiting to help turn your ADU dream into a reality.