Accessory Dwelling Units (ADUs) are required to be permitted, two (2) per lot, in all jurisidictions planning under the Growth Management Act. To support communities in adding this housing type in their community, Commerce has updated ADU guidance and compiled a range of resources.
To review these additional resources, hover your cursor over ADU Guidance Update (above) to see additional tabs.
Commerce works with Municipal Research and Services Center - MRSC, which maintains a good resource of information associated with ADUs: MRSC - Accessory Dwelling Units (ADUs)
For more information, please contact Lilith Vespier, Infill Housing Manager, Lilith.Vespier@commerce.wa.gov work cell 360.890.5100.
