This section of code is subject to an Administrative Code Interpretation: CI-200

4-2-110A DEVELOPMENT STANDARDS FOR RESIDENTIAL LOW DENSITY AND MEDIUM DENSITY ZONES – PRIMARY STRUCTURES1

 

RC

R-1

R-4

R-6

R-8

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

None

3 dwelling units

4 dwelling units

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

Maximum Number of Dwellings (per Legal Lot)2

Single-family dwellings and cottage house dwelling units: 1 per legal or unit lot.

Accessory dwelling units (attached or detached): 2 per legal lot.

Middle housing: See RMC 4-2-110F, Development Standards for Middle Housing Developments.

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

Minimum Lot Width31

150 ft.

100 ft.32

70 ft.32

60 ft.32

50 ft.

Minimum Lot Width31 (Corner Lots)

175 ft.

110 ft.

80 ft.

70 ft.

60 ft.

Minimum Lot Depth31

300 ft.

200 ft.3, 32

100 ft.32

90 ft.32

80 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

Minimum Rear Yard4, 22, 31

35 ft.

30 ft.

25 ft.33

25 ft.

25 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.

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

Maximum Building Coverage (including Primary and Accessory)

10%

20%

35%

40%

50%

Maximum Impervious Surface Area

15%

25%

50%

55%

65%

Maximum Number of Stories

3

2

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

32 ft.

24 ft.

Maximum Number of Units per Building2

4 dwelling units

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; Ord. 6154 (Att. A), 12-9-2024; Ord. 6160 (Exh. B-1), 6-16-2025)


1

Please see Section 4-2-110I, Conditions Associated With Residential Development Standards Tables, for explanation of table footnotes.