Earlier editions: 2026-09
Foster City Municipal Code Ch. 17.20 R-4 High Density Multiple-Family Residence District
Foster City Municipal Code · 2026-10 edition · updated 2026-10-05 · Foster City
Cite as: Foster City Municipal Code Chapter 17.20 · Text as of 2026-10-05
17.20.010 Regulation generally.¶
The specific regulations set forth in this chapter shall apply in all R-4 districts. (Ord. 674 § 2 (Exh. F), 2024)
17.20.020 Permitted uses.¶
The following uses shall be permitted in the R-4 districts:
A. Any use permitted in any R-3 residential districts;
B. Accessory uses which are necessary to the above-mentioned uses. (Ord. 674 § 2 (Exh. F), 2024)
17.20.030 Conditional uses.¶
The following uses shall be permitted only when authorized by a conditional use permit issued in accordance with Chapter 17.72:
A. Any conditional use permitted in the R-3 multiple-family residential districts;
B. Convalescent homes, rest homes or nursing homes accommodating more than five persons in addition to the owner or manager and his family wherein the total structure has been designed specifically for the use permitted. (Ord. 674 § 2 (Exh. F), 2024)
17.20.040 Area, bulk, yard and height regulations.¶
The following area, bulk, yard and height regulations shall apply in the R-4 districts:
| Minimum Building Site | Minimum Building Site | Minimum Density Permitted (units per acre) | Maximum Density Permitted (units per acre) | Minimum Yards Required | Minimum Yards Required | Minimum Yards Required | Maximum Height Permitted | Maximum Height Permitted | Maximum Coverage Permitted | Open Green Area Required |
|---|---|---|---|---|---|---|---|---|---|---|
| Average Width (ft.) | Minimum Area (sq. ft.) | Minimum Density Permitted (units per acre) | Maximum Density Permitted (units per acre) | Front (ft.) | Side (ft.) | Rear (ft.) | Stories | Ft. | (%) | (%) |
| 150 | 15,000 | 15/20 1 | 35 | 10 | 5/10 2 | 10 | 5 | 55 | 50 | 30 |
1 Minimum density shall depend upon the general plan land use designation. For condominium residential, the permitted density range is 15 – 35 units per acre. For apartment residential, the permitted density range is 20 – 35 units per acre.
2 Side setbacks shall be increased to 10 feet where the property abuts property in the R-1 or R-1/PD district.
(Ord. 674 § 2 (Exh. F), 2024)
17.20.050 Parking.¶
Parking shall be provided in accordance with Chapter 17.62. (Ord. 674 § 2 (Exh. F), 2024)
17.20.060 Design standards.¶
All development shall comply with Chapter 17.96. (Ord. 674 § 2 (Exh. F), 2024)
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