top of page

Accessory Dwelling Unit (ADU)

Our Services

What is an ADU?
An Accessory Dwelling Unit (ADU) is a residential unit that can be added to a lot with existing single family home. ADUs can be detached (a separate building in a backyard), attached to or part of the primary residence, or a garage conversion. ADUs are independent rental units that have their own kitchens, bathrooms, living areas, and entrances.

Why build an ADU?

ADUs can provide additional space for caregivers, grown children, elderly parents, or renters. Because ADUs are rental units, they produce additional household income. “Empty nesters” can stay in their neighborhoods by moving into a smaller ADU and renting their larger existing home to pay the mortgage. An ADU can be built to house a relative or caregiver. There are many reasons for building an ADU on your lot.

How much space will I need for parking?

Many lots already accommodate two parking spaces in a garage or carport. When you add an ADU, you may need to fit one extra parking space on your lot. If an additional space is required, the space may be covered or uncovered.

You may not need additional parking if:

1. ADU located within one-half mile of public transit.

2. ADU located within an architecturally and historically significant district.

3. ADU part of the existing primary residence or an existing structure.

4. on-street parking permits are required, but not offered to occupant

5. there is a car-share vehicle located within one block of the ADU.

Detached Unit with Existing Garage

Maximum size of 1200 sq ft

10 ft min. between house and ADU

Backyard Garage Conversion

Maximum Size of 1200 sq ft

Most Cost Effective

Attached Unit as Addition to Garage

Maximum Size of 1200 sq ft

Attached Unit as Addition to House

No more than 50% of existing house

and max of 1200 sq ft

Attached Unit Variation Within House

Cannot exceed 50% of existing house

Attached Unit Variation Above Garage

bottom of page