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
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RC |
R-1 |
R-4 |
R-6 |
R-8 |
|---|---|---|---|---|---|
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Minimum Net Density (per Net Acre)1, 2, 15 |
None |
3 dwelling units |
4 dwelling units |
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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. |
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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 |
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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. |
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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 |
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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 |
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Maximum Building Coverage (including Primary and Accessory) |
10% |
20% |
35% |
40% |
50% |
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Maximum Impervious Surface Area |
15% |
25% |
50% |
55% |
65% |
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Maximum Number of Stories |
3 |
2 |
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Maximum Wall Plate Height8, 9, 10, 12, 18, 19 |
32 ft. |
24 ft. |
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Maximum Number of Units per Building2 |
4 dwelling units |
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Minimum Freeway Frontage Setback |
10 ft. landscaped setback from the street property line. |
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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. |
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Design Standards |
See RMC 4-2-115, Residential Design and Open Space Standards. |
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Landscaping |
See RMC 4-4-070, Landscaping. |
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Exterior Lighting |
See RMC 4-4-075, Lighting, Exterior On-Site. |
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Screening |
See RMC 4-4-095, Screening and Storage Height/Location Limitations. |
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Exception for Pre-Existing Legal Lots |
See RMC 4-10-010, Nonconforming Lots. |
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(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)
Please see Section 4-2-110I, Conditions Associated With Residential Development Standards Tables, for explanation of table footnotes.