Zones
A. General. This section describes the intent for each of the city’s residential zones. These intent statements may be used to guide the interpretation of the regulations associated with each zone.
B. RC Residential Conservancy Zone.
1. RC residential conservancy zone is intended primarily to provide for low-intensity single-family residential uses with characteristics of an agricultural environment; provided, that the agricultural uses are secondary to the single-family uses. These areas allow for a lifestyle similar to that of rural areas that includes allowance of farm animals and streets without sidewalks. This zone is intended to protect areas with significant environmental constraints or values from impacts typically associated with urban levels of development while allowing low-intensity development designed to minimize impacts on the natural environmental features designated for conservation.
2. Public improvements required within the RC zone will be less than is normally required for the higher intensity residential zones within the city and are not subject to the city’s complete streets policies.
3. This zone shall only be applied in areas designated as residential conservancy on the comprehensive plan.
C. R-1 Residential Zone.
1. The intent of the R-1 residential zone is to provide areas for estate-type residential development on large lots in areas that are intended to create an open space separation between existing urban areas that are unique from each other and where limited public utilities and transportation infrastructure are present.
Appropriate development standards required of other urban areas shall be required to serve this zone.
2. R-1 implements the Neighborhood Residential One comprehensive plan land use designation.
D. R-2 Residential Low Zone.
1. The R-2 residential low zone is intended for lower-intensity residential development consisting of single-unit detached houses, townhouse, duplex, triplex, fourplex, two-story stacked flats, courtyard apartments, cottage housing on lot sizes typical of suburban and urban development. This residential zone allows flexibility in the types and densities of housing permitted while at the same time maintaining a desirable family living environment by establishing minimum usable open spaces, maximum impervious coverage, and maximum units per lot area with the character and scale of traditional single-unit detached neighborhoods.
2. A related consideration of this zone is to provide a transition between low-intensity residential development areas and higher- and lower-intensity designations. Small-scale, community-based commercial development that provides services to the local neighborhood will be considered through the administrative use permit process.
3. R-2 implements the Neighborhood Residential Two comprehensive plan land use designation.
E. R-3 Residential Moderate Zone.
1. The intent of the R-3 residential moderate zone is to allow all residential and commercial types and uses provided in the R-2 residential zone, while allowing additional intensity through allowing stacked flats up to three stories, fiveplexes, and sixplexes. Single-unit detached houses are not permitted in the R-3 zone. Apartment buildings and mixed-use development consisting of no more than 20 units and three stories per lot is permitted. Supportive housing and residential care developments are permitted in this zone to provide additional needed housing options but must still adhere to the residential density and unit limitations established within this category. Small-scale commercial development providing services to the area is encouraged in this zone and implemented through the administrative use permit process.
2. R-3 implements the Neighborhood Residential Two comprehensive plan land use designation.
F. R-4 Residential High Zone.
1. The R-4 residential high zone is intended to maximize residential density opportunities and is further intended as a residential zone primarily of middle housing and multiple-story apartment and mixed-use development. This zone is characterized by a more active living environment near transit, urban services and commercial uses. The R-4 residential zone allows for all uses allowed in the R-3 zone, plus apartment and mixed-use development of more than 20 units and three stories per lot is permitted. Small-scale commercial development providing services to the area is encouraged in this zone and implemented through the administrative use permit process.
2. R-4 implements the Neighborhood Residential Three comprehensive plan land use designation.
G. R-NM Residential Neighborhood Mixed-Use Zone.
1. The intent of the R-NM residential neighborhood mixed-use zone is to provide a flexible approach that achieves a mix of dense residential development and light commercial uses in either a vertical or horizontal configuration. Within this zone there will be a mix of retail, office, middle housing, and multi-story residential uses, with attractive design and accessible spaces for people to live, work, and visit. This zoning designation is served primarily by a combination of transit, pedestrian, and/or bicycle facilities allowing people to access amenities without needing a personal vehicle. Uses and densities allowed within this zone will be consistent with the uses permitted in the C-1 light commercial and the densities of the R4 residential high zone. New development and redevelopment will incorporate a mix of residential and commercial uses. In addition, parks and open spaces are encouraged and may be permitted through the administrative use permit process.
2. Street-level development is encouraged to be retail or higher traffic local businesses or offices, and residential is encouraged on the upper levels of buildings. This zoning district should be walkable and bikeable to neighborhood commercial services and transit facilities and have a high level of street activation and amenities.
H. R-F Residential Flex Zone. The R-F residential-flex zone is intended primarily to accommodate small-scale business and professional offices, medical and dental clinics, salons and other personal services, eating and drinking establishments, and banks and similar financial institutions at locations where they are compatible with residential uses. Accessory retail may be permitted if supplemental to the other uses allowed in the zone. This zone is intended for those areas that are in transition from residential to commercial uses along corridors serving lower density residential land uses. Conversion of residential uses to commercial uses is geared towards encouraging adaptive reuse of existing single-unit structures that continue to appear in accord with the single-unit residential character. New development in the R-F residential-flex zone should not exceed two stories or footprint that is designed to maintain a character and a scale smaller than the R-NM residential neighborhood mixed-use residential zone. (Ord. 6959 § 1 (Exh. A), 2024; Ord. 6525 § 6, 2014; Ord. 6245 § 5, 2009.)
Table 18.07.020. Permitted Use Table – Residential Zones
P = Permitted A = Administrative C = Conditional Use X = Not Permitted | |||||||
|---|---|---|---|---|---|---|---|
Land Uses | Zoning Designations | ||||||
RC | R-1 | R-2 | R-3 | R-4 | R-NM | R-F | |
A. Residential Uses. | |||||||
Accessory dwelling units subject to the provisions contained in Chapter 18.32 ACC | P1 | P1 | P1 | P1 | P1 | P1 | P1 |
P | P | P | P | P | P | P | |
P | P | P | P | P | P1 | P | |
Apartments (7 units or more) | X | X | X | P11 | P | P | X |
Bed and breakfast or short-term rentals | P | P | P | P | P | X | P |
X | X | X | X | X | P | X | |
P | P | P | P | P | X | P | |
P | P | P | P | P | X | P | |
Group residence facilities (7 or more residents) | X | X | X | P | P | P | P |
Group residence facilities (6 or fewer residents) | P | P | P | P | P | P | P |
Keeping of animals4 | P2 | P2 | P2 | P2 | P2 | P2 | P2 |
Middle housing subject to the provisions in Chapter 18.25 ACC (2 to 6 units) | P | P | P | P | P | P | P |
Neighborhood recreational buildings and facilities owned and managed by the neighborhood homeowners’ association | A6 | A6 | A6 | A6 | A6 | P | P |
Use as dwelling units of (1) recreational vehicles that are not part of an approved recreational vehicle park, (2) boats, (3) automobiles, and (4) other vehicles | X | X | X | X | X | X | X |
Renting of rooms, for lodging purposes only, to accommodate not more than two persons in addition to the family or owner occupied unit8 | P | P | P | P | P | P | P |
Residential care facilities including but not limited to assisted living facilities, convalescent homes, continuing care retirement facilities | P | P | P | P | P | P | P |
P | P | P | X | X | X | P | |
Supportive housing (permanent), subject to the provisions of ACC 18.31.160 | P | P | P | P | P | P | P |
Swimming pools, tennis courts and similar outdoor recreation uses only accessory to residential or park uses | P | P | P | P | P | P | P |
Townhouses (attached) | X | X | X | X | P | P | P |
P | P | P | P | P | P | P | |
B. Commercial Uses. | |||||||
Commercial horse riding and bridle trails | A | X | X | X | X | X | X |
X | X | X | X | P | P | X | |
Commercial retail establishment | X | X | A | A | P | P | A |
X | X | X | X | P | P | X | |
Daycare, limited to a mini daycare center. Daycare center, preschool or nursery school may also be permitted but must be located on an arterial | X | P | P | P | P | P | P |
Grocery or specialty food store | X | X | X | A | P | P | A |
Home-based (or family) daycare as regulated by RCW 35.63.185 and through receipt of approved city business license | P | P | P | P | P | P | P |
Home occupations subject to compliance with Chapter 18.60 ACC | P | P | P | P | P | P | P |
X | X | X | X | X | X | X | |
X | X | X | X | X | X | X | |
X | X | X | X | X | X | X | |
X | X | X | X | X | X | X | |
X | X | X | X | X | X | X | |
X | X | X | X | X | X | X | |
Marijuana transporter business | X | X | X | X | X | X | X |
X | X | X | P | P | P | P | |
X | X | A | P | P | P | P | |
X | X | X | X | C | C | C | |
Privately owned and operated parks and playgrounds and not homeowners’ association-owned recreational area | X | A | A | A | A | P | P |
X | X | A | A | P9 | P | P | |
Restaurant, café, or coffee shop | X | X | A | A | P | P | A |
X | X | A | A | P | P | P | |
C. Resource Uses. | |||||||
When 50 percent, or more, of the total site area is dedicated to active agricultural production during the growing season, and with 52 or less special events per calendar year | A7 | X | X | X | X | X | X |
When less than 50 percent of the total site area is dedicated to active agricultural production during the growing season, or with more than 52 special events per calendar year | C7 | X | X | X | X | X | X |
Agricultural type uses are permitted provided they are incidental and secondary to the single-family use: | |||||||
Agricultural crops and open field growing (commercial) | P | X | X | X | X | X | X |
Barns, silos and related structures | P | X | X | X | X | X | X |
Commercial greenhouses | P | X | X | X | X | X | X |
Pasturing and grazing4 | P | X | X | X | X | X | X |
Public and private stables4 | P | X | X | X | X | X | X |
Roadside stands, for the sale of agricultural products raised on the premises. The stand cannot exceed 300 square feet in area and must meet the applicable setback requirements. | P | X | X | X | X | X | X |
Fish hatcheries | C | X | X | X | X | X | X |
D. Government, Institutional, and Utility Uses. | |||||||
Civic, social and fraternal clubs | X | X | X | X | A | A | A |
Government facilities | A | A | A | A | A | A | A |
X | X | X | X | X | C | C | |
Municipal parks and playgrounds | A | P | P | P | P | P | P |
X | X | X | X | A | A | A | |
Religious institutions, less than one acre lot size12 | A | A | A | A | A | A | A |
Religious institutions, one acre or larger lot size12 | C | C | C | C | C | C | C |
C | C | C | C | C | C | C | |
Type 1-D wireless communications facility (see ACC 18.04.912(W) and 18.31.100) | P | P | P | P | P | P | P |
Eligible facilities request (EFR) (wireless communications facility – See ACC 18.04.912(H)) | P | P | P | P | P | P | P |
Utility facilities and substations | C5 | C5 | C5 | C5 | C5 | C5 | C5 |
P | P | P | P | P | P | P | |
1An accessory dwelling unit may be permitted with an existing single-unit residence pursuant to Chapter 18.32 ACC.
2Please see the supplemental development standards for animals in ACC 18.31.220.
3Individual uses that make up a mixed-use development must be permitted within the zone. If a use making up part of a mixed-use development requires an administrative or conditional use permit, the individual use must apply for and receive the administrative or conditional use approval, as applicable.
4Proximity of pasture or livestock roaming area to wells, surface waters, and aquifer recharge zones is regulated by the King or Pierce County board of health, and property owners shall comply with the provisions of the board of health code.
5Excludes all public and private utility facilities addressed under ACC 18.02.040(E).
6Administrative use permit not required when approved as part of a subdivision or binding site plan.
7Agricultural enterprise uses are subject to supplemental development standards under ACC 18.31.210, Agricultural enterprises development standards.
8An owner occupant that rents to more than two persons but no more than four persons is required to obtain a city of Auburn rental housing business license and shall meet the standards of the International Property Maintenance Code.
9As component of mixed-use developments and/or office ground floor uses permitted up to 5,000 square feet.
10Commercial uses permitted outright, or allowed administratively or conditionally in this table may be allowed as part of mixed-use development.
11Apartment buildings and mixed-use development consisting of no more than 20 units and three stories per lot is permitted.
12 Reference ACC 18.31.165 for standards related to homeless encampments hosted by a religious organization.
(Ord. 6977 § 1 (Exh. A), 2025; Ord. 6959 § 1 (Exh. A), 2024; Ord. 6799 § 5 (Exh. E), 2020; Ord. 6642 § 4, 2017; Ord. 6600 § 9, 2016; Ord. 6565 § 2, 2015; Ord. 6560 § 9, 2015; Ord. 6477 § 8, 2013; Ord. 6369 § 2, 2011; Ord. 6363 § 3, 2011; Ord. 6269 § 3, 2009; Ord. 6245 § 5, 2009.)
Table 18.07.030. Residential Development Standards
Standard | RC | R-1 | R-2 | R-3 | R-4 | R-NM | R-F | |
|---|---|---|---|---|---|---|---|---|
A | Minimum density units or lots per acre (lot area per unit)1 5 | 0.25 (174,000 sf of lot area per unit) | 1 (43,500 sf of lot area per unit) | 7 (6,222 sf lot area per unit) | 12 (3,630 sf lot area per unit) | 16 (2,723 sf lot area per unit) | 30 (1,452 sf lot area per unit) | 7 (6,222 sf lot area per unit) |
B | 174,000 | 43,500 | 4,400 | 2,700 | 2,200 | 2,200 | 4,400 | |
C | 125 | 125 | 40 | 20 for interior lots; 35 for exterior lots | 20 for interior lots; 35 for exterior lots | 20 for interior lots; 35 for exterior lots | 40 | |
D | Units allowed | |||||||
1 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | |
2 | Base units per lot allowed with transit or affordability bonus 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
3 | Lot area per unit above base (B1 or B2 as applicable) allowance (square feet) 6 | X | X | 1,250 | 750 | N/A | N/A | 1,250 |
4 | 6 | 6 | 6 | 20 | N/A | N/A | 6 | |
E | Minimum setbacks (feet)2, 3 | |||||||
1 | 35 | 35 | 10 | 10 | 10 | 10 | 10 | |
2 | Garage (minimum front setback required from street access)3 | 20 | 20 | 20 | 20 | 20 | 20 | 20 unless alley-loaded then 15 provided there are 20 feet from any garage |
3 | Setback to any property line for barns, stables, or similar structures for enclosure of large domestic animals For other animals, see the supplemental development standards for animals in ACC 18.31.220 | 75 | X | X | X | X | X | X |
4 | Setback to any property line for any corral, exercise yard, or arena for large domestic animals For other animals, see the supplemental development standards for animals in ACC 18.31.220 | 35 | X | X | X | X | X | X |
5 | Interior side setback | 20 | 10 | 5 | 5 | 5 | 5 | 5 |
6 | Street side setback3 In all zones, 20 feet minimum street side setback required from street access. | 35 | 20 | 10 | 10 | 10 | 10 | 10 |
7 | 35 | 20 | 15 | 15 | 10 | 10 | 15 | |
8 | Rear setback, detached structure3, 8 In all zones, 20 feet minimum street side setback required from street access. | 15 | 15 | 10 | 5 | 5 | 5 | 10 |
F | Maximum impervious area (%) | 25 | 50 | 75 | 80 | 90 | 90 | 75 |
G | Maximum building height (feet) | 35 | 35 | 35 | 45 | 75 | 75 | 45 |
H | Maximum height of accessory buildings and structures | 354 | 35 | 24 | 24 | 24 | 24 | 24 |
I | Minimum front setback area landscape strip (feet) | N/A | N/A | N/A | 5 | 10 | 10 | N/A |
J | Minimum side setback area landscape strip (feet) | N/A | N/A | N/A | 5 | 10 | 10 | N/A |
K | Minimum landscaped open space (%) | N/A | N/A | See Chapter 18.50 ACC | See Chapter 18.50 ACC | See Chapter 18.50 ACC | See Chapter 18.50 ACC | N/A |
2All minimum lot widths, setbacks, and landscaping strips are subject to demonstration to the satisfaction of the city engineer that all required utility infrastructure, access requirements, and street elements can be accommodated in accordance with the design and construction standards.
3In addition to meeting setback requirements, all structures must meet sight distance requirements in accordance with city design and construction standards.
4Barns and other specialized structures used for agricultural purposes may exceed the height limits.
5Provision applicable to residential subdivision.
8When abutting an alley, detached accessory dwelling units are allowed within the rear setback.
(Ord. 6959 § 1 (Exh. A), 2024; Ord. 6661 § 3, 2018; Ord. 6600 § 10, 2016; Ord. 6245 § 5, 2009.)
Zones
A. General. This section describes the intent for each of the city’s residential zones. These intent statements may be used to guide the interpretation of the regulations associated with each zone.
B. RC Residential Conservancy Zone.
1. RC residential conservancy zone is intended primarily to provide for low-intensity single-family residential uses with characteristics of an agricultural environment; provided, that the agricultural uses are secondary to the single-family uses. These areas allow for a lifestyle similar to that of rural areas that includes allowance of farm animals and streets without sidewalks. This zone is intended to protect areas with significant environmental constraints or values from impacts typically associated with urban levels of development while allowing low-intensity development designed to minimize impacts on the natural environmental features designated for conservation.
2. Public improvements required within the RC zone will be less than is normally required for the higher intensity residential zones within the city and are not subject to the city’s complete streets policies.
3. This zone shall only be applied in areas designated as residential conservancy on the comprehensive plan.
C. R-1 Residential Zone.
1. The intent of the R-1 residential zone is to provide areas for estate-type residential development on large lots in areas that are intended to create an open space separation between existing urban areas that are unique from each other and where limited public utilities and transportation infrastructure are present.
Appropriate development standards required of other urban areas shall be required to serve this zone.
2. R-1 implements the Neighborhood Residential One comprehensive plan land use designation.
D. R-2 Residential Low Zone.
1. The R-2 residential low zone is intended for lower-intensity residential development consisting of single-unit detached houses, townhouse, duplex, triplex, fourplex, two-story stacked flats, courtyard apartments, cottage housing on lot sizes typical of suburban and urban development. This residential zone allows flexibility in the types and densities of housing permitted while at the same time maintaining a desirable family living environment by establishing minimum usable open spaces, maximum impervious coverage, and maximum units per lot area with the character and scale of traditional single-unit detached neighborhoods.
2. A related consideration of this zone is to provide a transition between low-intensity residential development areas and higher- and lower-intensity designations. Small-scale, community-based commercial development that provides services to the local neighborhood will be considered through the administrative use permit process.
3. R-2 implements the Neighborhood Residential Two comprehensive plan land use designation.
E. R-3 Residential Moderate Zone.
1. The intent of the R-3 residential moderate zone is to allow all residential and commercial types and uses provided in the R-2 residential zone, while allowing additional intensity through allowing stacked flats up to three stories, fiveplexes, and sixplexes. Single-unit detached houses are not permitted in the R-3 zone. Apartment buildings and mixed-use development consisting of no more than 20 units and three stories per lot is permitted. Supportive housing and residential care developments are permitted in this zone to provide additional needed housing options but must still adhere to the residential density and unit limitations established within this category. Small-scale commercial development providing services to the area is encouraged in this zone and implemented through the administrative use permit process.
2. R-3 implements the Neighborhood Residential Two comprehensive plan land use designation.
F. R-4 Residential High Zone.
1. The R-4 residential high zone is intended to maximize residential density opportunities and is further intended as a residential zone primarily of middle housing and multiple-story apartment and mixed-use development. This zone is characterized by a more active living environment near transit, urban services and commercial uses. The R-4 residential zone allows for all uses allowed in the R-3 zone, plus apartment and mixed-use development of more than 20 units and three stories per lot is permitted. Small-scale commercial development providing services to the area is encouraged in this zone and implemented through the administrative use permit process.
2. R-4 implements the Neighborhood Residential Three comprehensive plan land use designation.
G. R-NM Residential Neighborhood Mixed-Use Zone.
1. The intent of the R-NM residential neighborhood mixed-use zone is to provide a flexible approach that achieves a mix of dense residential development and light commercial uses in either a vertical or horizontal configuration. Within this zone there will be a mix of retail, office, middle housing, and multi-story residential uses, with attractive design and accessible spaces for people to live, work, and visit. This zoning designation is served primarily by a combination of transit, pedestrian, and/or bicycle facilities allowing people to access amenities without needing a personal vehicle. Uses and densities allowed within this zone will be consistent with the uses permitted in the C-1 light commercial and the densities of the R4 residential high zone. New development and redevelopment will incorporate a mix of residential and commercial uses. In addition, parks and open spaces are encouraged and may be permitted through the administrative use permit process.
2. Street-level development is encouraged to be retail or higher traffic local businesses or offices, and residential is encouraged on the upper levels of buildings. This zoning district should be walkable and bikeable to neighborhood commercial services and transit facilities and have a high level of street activation and amenities.
H. R-F Residential Flex Zone. The R-F residential-flex zone is intended primarily to accommodate small-scale business and professional offices, medical and dental clinics, salons and other personal services, eating and drinking establishments, and banks and similar financial institutions at locations where they are compatible with residential uses. Accessory retail may be permitted if supplemental to the other uses allowed in the zone. This zone is intended for those areas that are in transition from residential to commercial uses along corridors serving lower density residential land uses. Conversion of residential uses to commercial uses is geared towards encouraging adaptive reuse of existing single-unit structures that continue to appear in accord with the single-unit residential character. New development in the R-F residential-flex zone should not exceed two stories or footprint that is designed to maintain a character and a scale smaller than the R-NM residential neighborhood mixed-use residential zone. (Ord. 6959 § 1 (Exh. A), 2024; Ord. 6525 § 6, 2014; Ord. 6245 § 5, 2009.)
Table 18.07.020. Permitted Use Table – Residential Zones
P = Permitted A = Administrative C = Conditional Use X = Not Permitted | |||||||
|---|---|---|---|---|---|---|---|
Land Uses | Zoning Designations | ||||||
RC | R-1 | R-2 | R-3 | R-4 | R-NM | R-F | |
A. Residential Uses. | |||||||
Accessory dwelling units subject to the provisions contained in Chapter 18.32 ACC | P1 | P1 | P1 | P1 | P1 | P1 | P1 |
P | P | P | P | P | P | P | |
P | P | P | P | P | P1 | P | |
Apartments (7 units or more) | X | X | X | P11 | P | P | X |
Bed and breakfast or short-term rentals | P | P | P | P | P | X | P |
X | X | X | X | X | P | X | |
P | P | P | P | P | X | P | |
P | P | P | P | P | X | P | |
Group residence facilities (7 or more residents) | X | X | X | P | P | P | P |
Group residence facilities (6 or fewer residents) | P | P | P | P | P | P | P |
Keeping of animals4 | P2 | P2 | P2 | P2 | P2 | P2 | P2 |
Middle housing subject to the provisions in Chapter 18.25 ACC (2 to 6 units) | P | P | P | P | P | P | P |
Neighborhood recreational buildings and facilities owned and managed by the neighborhood homeowners’ association | A6 | A6 | A6 | A6 | A6 | P | P |
Use as dwelling units of (1) recreational vehicles that are not part of an approved recreational vehicle park, (2) boats, (3) automobiles, and (4) other vehicles | X | X | X | X | X | X | X |
Renting of rooms, for lodging purposes only, to accommodate not more than two persons in addition to the family or owner occupied unit8 | P | P | P | P | P | P | P |
Residential care facilities including but not limited to assisted living facilities, convalescent homes, continuing care retirement facilities | P | P | P | P | P | P | P |
P | P | P | X | X | X | P | |
Supportive housing (permanent), subject to the provisions of ACC 18.31.160 | P | P | P | P | P | P | P |
Swimming pools, tennis courts and similar outdoor recreation uses only accessory to residential or park uses | P | P | P | P | P | P | P |
Townhouses (attached) | X | X | X | X | P | P | P |
P | P | P | P | P | P | P | |
B. Commercial Uses. | |||||||
Commercial horse riding and bridle trails | A | X | X | X | X | X | X |
X | X | X | X | P | P | X | |
Commercial retail establishment | X | X | A | A | P | P | A |
X | X | X | X | P | P | X | |
Daycare, limited to a mini daycare center. Daycare center, preschool or nursery school may also be permitted but must be located on an arterial | X | P | P | P | P | P | P |
Grocery or specialty food store | X | X | X | A | P | P | A |
Home-based (or family) daycare as regulated by RCW 35.63.185 and through receipt of approved city business license | P | P | P | P | P | P | P |
Home occupations subject to compliance with Chapter 18.60 ACC | P | P | P | P | P | P | P |
X | X | X | X | X | X | X | |
X | X | X | X | X | X | X | |
X | X | X | X | X | X | X | |
X | X | X | X | X | X | X | |
X | X | X | X | X | X | X | |
X | X | X | X | X | X | X | |
Marijuana transporter business | X | X | X | X | X | X | X |
X | X | X | P | P | P | P | |
X | X | A | P | P | P | P | |
X | X | X | X | C | C | C | |
Privately owned and operated parks and playgrounds and not homeowners’ association-owned recreational area | X | A | A | A | A | P | P |
X | X | A | A | P9 | P | P | |
Restaurant, café, or coffee shop | X | X | A | A | P | P | A |
X | X | A | A | P | P | P | |
C. Resource Uses. | |||||||
When 50 percent, or more, of the total site area is dedicated to active agricultural production during the growing season, and with 52 or less special events per calendar year | A7 | X | X | X | X | X | X |
When less than 50 percent of the total site area is dedicated to active agricultural production during the growing season, or with more than 52 special events per calendar year | C7 | X | X | X | X | X | X |
Agricultural type uses are permitted provided they are incidental and secondary to the single-family use: | |||||||
Agricultural crops and open field growing (commercial) | P | X | X | X | X | X | X |
Barns, silos and related structures | P | X | X | X | X | X | X |
Commercial greenhouses | P | X | X | X | X | X | X |
Pasturing and grazing4 | P | X | X | X | X | X | X |
Public and private stables4 | P | X | X | X | X | X | X |
Roadside stands, for the sale of agricultural products raised on the premises. The stand cannot exceed 300 square feet in area and must meet the applicable setback requirements. | P | X | X | X | X | X | X |
Fish hatcheries | C | X | X | X | X | X | X |
D. Government, Institutional, and Utility Uses. | |||||||
Civic, social and fraternal clubs | X | X | X | X | A | A | A |
Government facilities | A | A | A | A | A | A | A |
X | X | X | X | X | C | C | |
Municipal parks and playgrounds | A | P | P | P | P | P | P |
X | X | X | X | A | A | A | |
Religious institutions, less than one acre lot size12 | A | A | A | A | A | A | A |
Religious institutions, one acre or larger lot size12 | C | C | C | C | C | C | C |
C | C | C | C | C | C | C | |
Type 1-D wireless communications facility (see ACC 18.04.912(W) and 18.31.100) | P | P | P | P | P | P | P |
Eligible facilities request (EFR) (wireless communications facility – See ACC 18.04.912(H)) | P | P | P | P | P | P | P |
Utility facilities and substations | C5 | C5 | C5 | C5 | C5 | C5 | C5 |
P | P | P | P | P | P | P | |
1An accessory dwelling unit may be permitted with an existing single-unit residence pursuant to Chapter 18.32 ACC.
2Please see the supplemental development standards for animals in ACC 18.31.220.
3Individual uses that make up a mixed-use development must be permitted within the zone. If a use making up part of a mixed-use development requires an administrative or conditional use permit, the individual use must apply for and receive the administrative or conditional use approval, as applicable.
4Proximity of pasture or livestock roaming area to wells, surface waters, and aquifer recharge zones is regulated by the King or Pierce County board of health, and property owners shall comply with the provisions of the board of health code.
5Excludes all public and private utility facilities addressed under ACC 18.02.040(E).
6Administrative use permit not required when approved as part of a subdivision or binding site plan.
7Agricultural enterprise uses are subject to supplemental development standards under ACC 18.31.210, Agricultural enterprises development standards.
8An owner occupant that rents to more than two persons but no more than four persons is required to obtain a city of Auburn rental housing business license and shall meet the standards of the International Property Maintenance Code.
9As component of mixed-use developments and/or office ground floor uses permitted up to 5,000 square feet.
10Commercial uses permitted outright, or allowed administratively or conditionally in this table may be allowed as part of mixed-use development.
11Apartment buildings and mixed-use development consisting of no more than 20 units and three stories per lot is permitted.
12 Reference ACC 18.31.165 for standards related to homeless encampments hosted by a religious organization.
(Ord. 6977 § 1 (Exh. A), 2025; Ord. 6959 § 1 (Exh. A), 2024; Ord. 6799 § 5 (Exh. E), 2020; Ord. 6642 § 4, 2017; Ord. 6600 § 9, 2016; Ord. 6565 § 2, 2015; Ord. 6560 § 9, 2015; Ord. 6477 § 8, 2013; Ord. 6369 § 2, 2011; Ord. 6363 § 3, 2011; Ord. 6269 § 3, 2009; Ord. 6245 § 5, 2009.)
Table 18.07.030. Residential Development Standards
Standard | RC | R-1 | R-2 | R-3 | R-4 | R-NM | R-F | |
|---|---|---|---|---|---|---|---|---|
A | Minimum density units or lots per acre (lot area per unit)1 5 | 0.25 (174,000 sf of lot area per unit) | 1 (43,500 sf of lot area per unit) | 7 (6,222 sf lot area per unit) | 12 (3,630 sf lot area per unit) | 16 (2,723 sf lot area per unit) | 30 (1,452 sf lot area per unit) | 7 (6,222 sf lot area per unit) |
B | 174,000 | 43,500 | 4,400 | 2,700 | 2,200 | 2,200 | 4,400 | |
C | 125 | 125 | 40 | 20 for interior lots; 35 for exterior lots | 20 for interior lots; 35 for exterior lots | 20 for interior lots; 35 for exterior lots | 40 | |
D | Units allowed | |||||||
1 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | |
2 | Base units per lot allowed with transit or affordability bonus 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
3 | Lot area per unit above base (B1 or B2 as applicable) allowance (square feet) 6 | X | X | 1,250 | 750 | N/A | N/A | 1,250 |
4 | 6 | 6 | 6 | 20 | N/A | N/A | 6 | |
E | Minimum setbacks (feet)2, 3 | |||||||
1 | 35 | 35 | 10 | 10 | 10 | 10 | 10 | |
2 | Garage (minimum front setback required from street access)3 | 20 | 20 | 20 | 20 | 20 | 20 | 20 unless alley-loaded then 15 provided there are 20 feet from any garage |
3 | Setback to any property line for barns, stables, or similar structures for enclosure of large domestic animals For other animals, see the supplemental development standards for animals in ACC 18.31.220 | 75 | X | X | X | X | X | X |
4 | Setback to any property line for any corral, exercise yard, or arena for large domestic animals For other animals, see the supplemental development standards for animals in ACC 18.31.220 | 35 | X | X | X | X | X | X |
5 | Interior side setback | 20 | 10 | 5 | 5 | 5 | 5 | 5 |
6 | Street side setback3 In all zones, 20 feet minimum street side setback required from street access. | 35 | 20 | 10 | 10 | 10 | 10 | 10 |
7 | 35 | 20 | 15 | 15 | 10 | 10 | 15 | |
8 | Rear setback, detached structure3, 8 In all zones, 20 feet minimum street side setback required from street access. | 15 | 15 | 10 | 5 | 5 | 5 | 10 |
F | Maximum impervious area (%) | 25 | 50 | 75 | 80 | 90 | 90 | 75 |
G | Maximum building height (feet) | 35 | 35 | 35 | 45 | 75 | 75 | 45 |
H | Maximum height of accessory buildings and structures | 354 | 35 | 24 | 24 | 24 | 24 | 24 |
I | Minimum front setback area landscape strip (feet) | N/A | N/A | N/A | 5 | 10 | 10 | N/A |
J | Minimum side setback area landscape strip (feet) | N/A | N/A | N/A | 5 | 10 | 10 | N/A |
K | Minimum landscaped open space (%) | N/A | N/A | See Chapter 18.50 ACC | See Chapter 18.50 ACC | See Chapter 18.50 ACC | See Chapter 18.50 ACC | N/A |
2All minimum lot widths, setbacks, and landscaping strips are subject to demonstration to the satisfaction of the city engineer that all required utility infrastructure, access requirements, and street elements can be accommodated in accordance with the design and construction standards.
3In addition to meeting setback requirements, all structures must meet sight distance requirements in accordance with city design and construction standards.
4Barns and other specialized structures used for agricultural purposes may exceed the height limits.
5Provision applicable to residential subdivision.
8When abutting an alley, detached accessory dwelling units are allowed within the rear setback.
(Ord. 6959 § 1 (Exh. A), 2024; Ord. 6661 § 3, 2018; Ord. 6600 § 10, 2016; Ord. 6245 § 5, 2009.)