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A. Purpose. The RIN Single-Family Urban Residential zone is intended to promote single-family housing consisting of smaller dwelling units to respond to changing household sizes and ages. It will provide opportunities for households of various sizes, ages, and incomes to live in a neighborhood by promoting diversity in the size, type, and price of new single-family homes. Also, this zone will blend new development with existing residential development to help maintain neighborhood character, particularly in neighborhoods with a predominance of small to moderately sized homes. The zone will help to provide appealing and active streetscapes that promote a more walkable and enjoyable neighborhood experience. The density allowed within the zone shall be four to five dwelling units per gross acre depending on the size of the site and the size of dwellings proposed.

B. Regulations Common to All Uses.

Table 21.08.070A
Regulations Common to All Uses

Regulation

Site area of 30,500 square feet or greater

Site area less than 30,500 square feet

Minimum

Average Lot Size

4,000 square feet

7,000

Required Density

80 percent of net acres

80 percent of net acres

Lot Width Circle

35 feet

40 feet

Lot Frontage

20 feet

20 feet

Setbacks

Front

15 feet

15 feet

Garage

18 feet

18 feet

Side / Interior (each side)

5 feet / 10 feet

5 feet / 10 feet

Side Street

15 feet

15 feet

Rear

10 feet

10 feet

Alley

4 feet

4 feet

Lake Sammamish

35 feet

35 feet

Building Separation

15 feet; 10 feet for cottages, size-limited dwellings, small-lot short plats, accessory dwelling units, and locations where these structures or cottages adjoin larger dwelling units.

15 feet; 10 feet for cottages, size-limited dwellings, small-lot short plats, accessory dwelling units, and locations where these structures or cottages adjoin larger dwelling units.

Open Space

20 percent of total lot area

20 percent of total lot area

Maximum

Density

5 units per acre, except when participating in cottage housing or programs with bonus density provisions

4 units per acre, except when participating in cottage housing or programs with bonus density provisions

Lot Coverage for Structures

35 percent of total lot area

35 percent of total lot area

Impervious Surface

65 percent of total lot area

60 percent of total lot area

Building Height

25 feet; 30 feet in Shoreline Jurisdiction

25 feet; 30 feet in Shoreline Jurisdiction

Drive-through

n/a

Drive-through facilities are prohibited except where expressly permitted in the Allowed Uses and Special Regulations table below.

Small dwelling units

See RZC 21.08.360

n/a

C. Allowed Uses and Special Regulations. The following table contains special zoning regulations that apply to uses in the RIN zone. To use the chart, first read down the left-hand column titled “Use.” When you have located the use that interests you, read across to find regulations that apply to that use. Uses are permitted unless otherwise specified in the Special Regulations column. Permitted uses may require land use permit approval. See RZC 21.76.020, Overview of the Development Process, for more information. Uses not listed are not permitted.

Table 21.08.070B
Allowed Uses and Special Regulations

Section

Use

Parking Ratio:
Unit of measure (Minimum required; Maximum allowed)

Special Regulations

Residential1

1

Detached dwelling unit

Dwelling unit (2.0)

2

Cottage

Cottage (1.5, 2.0)

A. Permitted use only in Education Hill, Grass Lawn, North Redmond, Overlake Residential and Willows/Rose Hill neighborhoods.

B. Cottage housing in the RIN zone shall comply with the requirements of RZC 21.08.290, Cottage Housing Developments. Site requirements that may be applicable for cottage housing and are not specified in RZC 21.08.290, Cottage Housing Developments, such as average lot size, are provided by the zone summary for the R-6 zone. (See RZC 21.08.090, R-6 Single-Family Urban Residential.)

3

Size-limited dwelling

Dwelling unit (2.0)

4

Accessory dwelling unit (ADU)

ADU (1.0)

A. See RZC 21.08.220, Accessory Dwelling Units, for specific regulations which apply to ADUs.

B. ADUs are not allowed within Cottage developments in the Willows/Rose Hill and Education Hill neighborhoods.

5

Attached dwelling unit, 2-4 units

Dwelling unit (2.0)

A. Permitted use in Education Hill, Grass Lawn, North Redmond, and Overlake neighborhoods. In Willows/Rose Hill neighborhood, 2-unit attached dwelling units are permitted use; 3-unit and 4-unit attached dwelling units require a Conditional Use Permit as part of a demonstration program. A Conditional Use Permit is required for all attached dwelling units in all other neighborhoods not listed above.

B. Please see RZC 21.08.260, Attached Dwelling Units, for specific neighborhood requirements related to density, design, and review and decision procedures.

6

Manufactured home

See RZC 21.08.320, Designated Manufactured Homes, Manufactured Homes, and Mobile Homes, for specific regulations which may apply.

7

Retirement residence

See Special Regulations

A. Permitted if developed through the subdivision or binding site plan processes. Otherwise, a Conditional Use Permit is required. See RZC 21.08.370, Retirement Residences, for specific regulations which may apply.

B. Parking requirements are as follows:

1. With no skilled nursing facility: Unit (1.0, 1.0) 

2. With skilled nursing facility: Worker on largest shift (1.25, 1.25)

C. A Traffic Mitigation Plan is required. See RZC 21.08.370.C.3.b.iii.

8

Residential care facility

A Conditional Use Permit is required.

9

Adult family home

Dwelling unit (2.0)

General Sales or Service

10

Bed and Breakfast Inn

Rental room (1.0)

No more than two rental rooms permitted.

Transportation, Communication, Information, and Utilities

11

Local utilities

Adequate to accommodate peak use.

12

Regional utilities

A Conditional Use Permit is required.

13

Heliport

N/A

A Conditional Use Permit is required. Does not include medical airlift. Permitted only abutting Lake Sammamish.

14

Float plane facility

A. A Conditional Use Permit is required. Permitted only abutting Lake Sammamish.

B. Piers, docks, and floats associated with the operation of float planes shall meet, as a minimum, the location criteria contained in RZC 21.68.070, In-Water Structures. Piers and docks are also subject to standards for residential piers and docks contained in RZC 21.68.070.E, Piers, Docks, and Floats. (SMP)

C. Only one float plane per lot is permitted. (SMP)

D. Float planes shall observe speed regulations for watercraft and vessels contained in RMC 14.16.030, Speed Regulations, except that these speeds may be exceeded for a short duration of time during landing and takeoff of planes. (SMP)

E. Float plane facilities or operation of float planes is prohibited on the Sammamish River, Bear Creek and Evans Creek. (SMP)

F. Float plane facilities and operation shall comply with FAA standards, including standards for fueling, oil spill cleanup, firefighting equipment, and vehicle and pedestrian separation. (SMP)

15

Wireless Communication Facilities

See RZC 21.56, Wireless Communication Facilities, for specific development requirements.

Arts, Entertainment, and Recreation

16

Community indoor recreation

Adequate to accommodate peak use.

Includes noncommercial indoor recreation uses, such as community clubhouses, indoor swimming pools, and other similar facilities.

17

Parks, open space, trails and gardens

1,000 sq ft gfa (0, adequate to accommodate peak use.)

Permitted if public or noncommercial. A Conditional Use Permit is required for commercial facilities.

18

Athletic, sports, and play fields

Adequate to accommodate peak use.

A Conditional Use Permit is required.

19

Golf course

20

Marine recreation

21

Commercial swimming pool

Education, Public Administration, Health Care, and Other Institutions

22

Day care center

Employee (1.0)

A Conditional Use Permit is required. Day care uses are only permitted in a building or building complex used for other uses, such as a school, church, meeting hall, or some other building used for more than one purpose. See RZC 21.08.310, Day Care Centers, for specific regulations which may apply.

23

Family day care provider

Vehicle used by the business (1.0).

Family day care providers are permitted as home businesses. See RZC 21.08.340, Home Business, for specific requirements for family day care providers.

24

Public safety

Adequate to accommodate peak use

A Conditional Use Permit is required.

25

Grade schools (K-12)

26

Religious Institution

1,000 sq ft gfa for assembly (1.0) or 5 fixed seats (1.0); 3 seats (1.0).

A. Permitted use if less than 250 seats. A Conditional Use Permit is required for religious institutions with between 250 and 750 seats. See RZC 21.08.280, Churches, Temples, Synagogues and Other Places of Worship, for specific requirements.

B. A Traffic Mitigation Plan is required. See RZC 21.08.280.C.5.

Agriculture

27

Crop production

N/A

28

Equestrian facility

A Conditional Use Permit is required.

Other

29

Home Business

Vehicle used by the business (1.0).

See RZC 21.08.340, Home Business, for specific regulations which apply to home businesses.

30

Roadside produce stand

N/A

31

Pier, dock, float

See RZC 21.68.070, In-Water Structures, for special height, setback and area requirements. (SMP)

32

Water-oriented accessory structure

See RZC 21.68.070.G, Water-Oriented Accessory Structures, for special height, setback and area requirements. (SMP)

Notes:

1Permanent supportive housing, as defined under RCW 36.70A.030, and transitional housing, as defined under RCW Chapter 84.36, are allowed in all land use districts where residential dwellings and/or hotel uses are allowed, subject to RZC 21.57.010, Permanent Supportive Housing, Transitional Housing, and Emergency Housing.

(Ord. 2652; Ord. 2709; Ord. 2803; Ord. 2919; Ord. 2958; Ord. 3074)

Effective on: 2/12/2022