21.08.143 NR Neighborhood Residential

21.08.143 NR Neighborhood Residential.

This section was recently added by Ordinance 3186, codified in May 2025.

A. Purpose. The Neighborhood Residential zone provides for primarily residential neighborhoods with a variety of housing types that serve households at a variety of income levels. The zone allows for different types of homes such as, but not limited to, detached single-family homes, duplexes, triplexes, fourplexes, fiveplexes, sixplexes, townhouses, stacked flats, courtyard apartments, cottage housing. Some nonresidential uses are allowed to provide amenities to nearby residential uses and to support complete neighborhoods.

1. Density. The maximum density for this zone is eight dwelling units per lot. The minimum density is one dwelling unit per lot.

Six dwelling units are allowed by right per lot.

Two additional dwelling units are allowed per lot if the affordable housing requirements of RZC 21.20.060.A.1.b.ii are met.

2. Lots. Lot standards are identified in Table 21.08.143B.2.

Table 21.08.143B.2. Lot Standards
	Standards
Average minimum lot size	3,000 square feet
Lot total area maximum	N/A
Lot width minimum	20 feet
Lot depth minimum	N/A
Lot frontage minimum	20 feet
Lot width circle minimum diameter	30 feet

3. Structure Standards. Structure and setback requirements are identified in Table 21.08.143B.3.

Table 21.08.143B.3. Structure Standards
	Standards
Front setback minimum	10 feet
Side (street) setback minimum	10 feet*
Side (interior) setback minimum	3 feet*
Rear setback minimum	5 feet
Garage setback minimum	3 feet
Alley setback minimum	2 feet
Lake Sammamish setback minimum	35 feet
Building separation minimum	5 feet*
Open space (development-wide compliance) minimum	20% of total lot area
Open space (lot-by-lot compliance) minimum	N/A
Lot coverage for structures maximum	50% total area**
Impervious surface maximum	70% total area
Building height maximum	38 feet

* Zero Lot Line Exception: These setback standards may not apply to developments that comply with the zero lot line regulations listed in RZC 21.08.390.

**Lot coverage for structures maximum will be 60 percent of total area for lots which meet the following requirements:

1. The lot is 18,000 square feet or less; and

2. The lot contains at least three dwelling units.

4. Dimensional Standards. Total square footage of structures on a lot is identified in Table 21.08.143B.4.

Table 21.08.143B.4. Maximum Total Gross Floor Area for All Structures Within the Lot
Standards
The maximum for the total square footage for all structures within the lot shall be determined by the quantity of dwelling units provided on the lot. Below grade floor shall count toward maximum total gross floor area.
Total number of dwelling units for all structures on lot	Maximum square footage for all structures on lot
1	4,500
2	6,000
3	7,500
4	9,000
5	10,500
6	12,000
7	13,500
8	15,000

5. Design Standards. Design standards are identified in RZC 21.08.180. (Ord. 3186)