Summary: Seattle has three zones in which neighborhood residential homes are the predominant type of development: NR1, NR2 and NR3. The abbreviation “NR” stands for Neighborhood Residential, and the numbers following the abbreviation indicate the minimum lot area generally needed to build a home in that zone.1 Other than the differing lot size requirements, Land Use Code standards that regulate the size and location of buildings are the same for all neighborhood residential zones. Development in Neighborhood Residential Small Lot (RSL) zones is subject to different standards and is beyond the scope of this Tip.
Date Revised: 06/12/2023