4-2-110A1 DEVELOPMENT STANDARDS FOR RESIDENTIAL ZONING DESIGNATIONS (PRIMARY STRUCTURES)

 

RC

R-1

R-4

R-6

R-8

R-10

R-14

RMF

Minimum Net Density (per Net Acre)1, 2, 15

None

3 dwelling units

4 dwelling units

5 dwelling units30

7 dwelling units30

10 dwelling units30

Maximum Net Density (per Net Acre, Except per Net 10 Acres in RC)2, 14, 15

1 dwelling unit

1 dwelling unit7, 36

4 dwelling units

6 dwelling units

8 dwelling units38

10 dwelling units29

14 dwelling units29

20 dwelling units29

Maximum Number of Dwellings (per Legal Lot)2

1 dwelling with 1 accessory dwelling unit

1 dwelling with 1 accessory dwelling unit7

1 dwelling with 1 accessory dwelling unit

1 dwelling with 1 accessory dwelling unit

Detached dwellings: 1 dwelling with 1 accessory dwelling unit

Attached dwellings: n/a

Townhouses: 1 dwelling

Other Attached Dwellings: n/a

Minimum Lot Size2, 28, 31

10 acres

1 acre3, 32

9,000 sq. ft.32, 34

7,000 sq. ft.32, 34

5,000 sq. ft.34

Detached dwellings: 4,000 sq. ft.

Attached dwellings: n/a

Detached dwellings: 3,000 sq. ft.

Attached dwellings: n/a

n/a

Minimum Lot Width31

150 ft.

100 ft.32

70 ft.32

60 ft.32

50 ft.

40 ft.

30 ft.

Townhouses: 25 ft.

Other Attached Dwellings: 50 ft.

Minimum Lot Width31 (Corner Lots)

175 ft.

110 ft.

80 ft.

70 ft.

60 ft.

50 ft.

40 ft.

Townhouses: 30 ft.

Other Attached Dwellings: 60 ft.

Minimum Lot Depth31

300 ft.

200 ft.3, 32

100 ft.32

90 ft.32

80 ft.

70 ft.

60 ft.

Townhouses: 50 ft.

Other Attached Dwellings: 65 ft.

Minimum Front Yard4, 5, 31

30 ft.

30 ft.6

30 ft.6, 33

25 ft.6

20 ft. except when all vehicle access is taken from an alley, then 15 ft.39

15 ft.11, except when all vehicle access is taken from an alley, then 10 ft.39

Townhouses: 15 ft.11, except when all vehicle access is taken from an alley, then 10 ft.39

Other Attached Dwellings: 20 ft.

Minimum Rear Yard4, 22, 31

35 ft.

30 ft.

25 ft.33

25 ft.

25 ft.39

15 ft.21, 39

10 ft.21, 39

Townhouses: 10 ft.13, 39

Other Attached Dwellings: 15 ft.39

Minimum Side Yard4, 31

25 ft.

15 ft.

Combined 20 ft. with not less than 7.5 ft. on either side.

Combined 15 ft. with not less than 5 ft. on either side.

5 ft.

Detached Units: 4 ft.

Attached Units: 4 ft. for unattached side(s), 0 ft. for the attached side(s).23

Detached Units: 4 ft.

Attached Units: 4 ft. for unattached side(s), 0 ft. for the attached side(s).23

5 ft. for unattached side(s), 0 ft. for the attached side(s).13

Minimum Secondary Front Yard4, 5, 31 (applies to Corner Lots)

30 ft.

30 ft.6

30 ft.6, 33

25 ft.6

15 ft.11

15 ft.11

15 ft.11

Townhouses: 15 ft.11

Other Attached Dwellings: 20 ft.

Maximum Building Coverage (including Primary and Accessory)

10%

20%

35%

40%

50%

55%

65%

Townhouses: 70%

Other Attached Dwellings: 35%

A maximum coverage of 45% may be allowed through the Hearing Examiner site development plan review process.

Maximum Impervious Surface Area

15%

25%

50%

55%

65%

70%

80%

75%

Maximum Number of Stories

3

2

3

Maximum Wall Plate Height8, 9, 10, 12, 18, 19

32 ft.

24 ft.

24 ft., increase up to 32 ft. possible subject to administrative conditional use permit approval.

Townhouses: 32 ft.

Other Attached Dwellings: 32 ft., increase up to 42 ft. possible subject to administrative conditional use permit approval.

Maximum Number of Units per Building2

n/a

No more than 4 units per building.

No more than 6 units per building.

n/a

Minimum Freeway Frontage Setback

10 ft. landscaped setback from the street property line.

Maximum Wireless Communication Facilities Height (including Amateur Radio Antennas)

See RMC 4-4-140, Wireless Communication Facilities. Amateur radio antennas are allowed a maximum height of 6 feet without a Conditional Use Permit. Larger structures will have a maximum height determined by the Conditional Use Permit process, RMC 4-9-030, Conditional Use Permits.

Design Standards

See RMC 4-2-115, Residential Design and Open Space Standards.

Landscaping

See RMC 4-4-070, Landscaping.

Exterior Lighting

See RMC 4-4-075, Lighting, Exterior On-Site.

Screening

See RMC 4-4-095, Screening and Storage Height/Location Limitations.

Exception for Pre-Existing Legal Lots

See RMC 4-10-010, Nonconforming Lots.

(Ord. 4869, 10-23-2000; Amd. Ord. 4963, 5-13-2002; Ord. 5100, 11-1-2004; Ord. 5132, 4-4-2005; Ord. 5153, 9-26-2005; Ord. 5306, 9-17-2007; Ord. 5355, 2-25-2008; Ord. 5383, 6-2-2008; Ord. 5387, 6-9-2008; Ord. 5401, 7-14-2008; Ord. 5450, 3-2-2009; Ord. 5473, 7-13-2009; Ord. 5518, 12-14-2009; Ord. 5526, 2-1-2010; Ord. 5528, 3-8-2010; Ord. 5529, 3-8-2010; Ord. 5531, 3-8-2010; Ord. 5590, 2-28-2011; Ord. 5649, 12-12-2011; Ord. 5650, 12-12-2011; Ord. 5675, 12-3-2012; Ord. 5702, 12-9-2013; Ord. 5726, 10-20-2014; Ord. 5744, 1-12-2015; Ord. 5759 (Att. C), 6-22-2015; Ord. 5790, 4-25-2016; Ord. 5791 (Att. A), 4-25-2016; Ord. 5798 (Att. A), 4-25-2016; Ord. 5841 (Att. A), 6-12-2017; Ord. 5867 (Att. B), 12-11-2017; Ord. 5899 (Att. B), 11-19-2018; Ord. 5960 (Att. B), 12-9-2019; Ord. 5981 (Att. A), 10-12-2020; Ord. 6048, 12-13-2021; Ord. 6049, 12-13-2021; Ord. 6076 (Att. A), 8-8-2022; Ord. 6091 (Att. A), 11-28-2022; Ord. 6128 (Att. C), 12-11-2023)


1

Please see Section 4-2-110E, Conditions Associated With Development Standards Table For Residential Zoning Designations, for explanation of table footnotes.