The City of Seattle has recently expanded the existing backyard cottage ordinance. The new ordinance allows backyard cottages in all Seattle neighborhoods on single family zoned lots that are at least 4,000 square feet. To see if your Seattle lot meets the minimum requirements click on the following link.
On the upper left hand corner under under base zone it will say if a detached accessory dwelling unit is allowed. If so, there are additional requirements that will determine what and where you can build. Give us call or shoot us an email with your address and we can perform a free analysis of your project.
Backyard Cottage Parking
Backyard cottages (detached ADUs) require one parking space in addition to any other parking space required for the primary residence. These parking spaces can be provided in tandem. However, these spaces cannot be located in the required front setback.
If your site has physical constraints that prevent you from providing the additional parking space an exception to this requirement may be granted.
Can I convert my garage to a backyard cottage ( detached ADU)?
Backyard Cottages - Other Cities
In general the requirements have a few things in common.