Title 19

Chapter 19.30 — LOT AREA AND LOT WIDTH

Sunnyvale Zoning Code · 2026-06 edition · ingested 2026-07-07 · Sunnyvale

§ 19.30.010. Conformance required.

The minimum lot area and lot width of each lot in every zoning district shall conform with the areas and distances specified in the table of required lot area and lot width, unless increased, decreased or modified by special provisions. The minimum floor elevation of every building in any zoning district shall conform with the special provisions set forth herein. Lot areas are expressed in terms of square feet and lot widths in terms of lineal feet unless otherwise specified. (Prior zoning code § 19.36.010; Ord. 2623-99 § 1)

§ 19.30.020. Required lot area and width.

Lot area and width shall be according to the provisions set forth in Table 19.30.020, except that all lots located within the DSP district shall conform to provisions set forth in Chapter 19.28.

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Table 19.30.020
Required Net Lot Area and Width
Lot Width at Lot Width at Lot Width at
Minimum Minimum Minimum
Lot Area Lot Area Per Front Yard Front Yard Front Yard
Minimum Dwelling Unit Setback Corner Setback Setback Cul-
Zoning District (Square feet) (Square Feet) (Feet) Interior (Feet) de-sac1 (Feet)
R-0 6,000 6,000 62 57 45
R-1 8,000 8,000 82 76 45
R-1.5 4,200 4,200 45 42 40
R-1.7/PD 2 acres2 2,6002 3 3 3
R-27 8,000 3,600 82 76 60
R-37, 8 8,000 1,800 82 120 60
R-47, 8 8,000 1,200 82 120 60
R-58 8,000 950 82 76 60
R-MH 9 Acres 1,5004 None None None
R-MH 9 Acres 1,8005 None None None
O6 8,000 None 82 76 60
P-F None None None None None
C-1 None None None None None
C-2 None None None None None
C-3 None None None None None
C-4 None None None None None
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City of Sunnyvale, CA

SUNNYVALE CODE

§ 19.30.020

§ 19.30.040

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Table 19.30.020
Required Net Lot Area and Width
Lot Width at Lot Width at Lot Width at
Minimum Minimum Minimum
Lot Area Lot Area Per Front Yard Front Yard Front Yard
Minimum Dwelling Unit Setback Corner Setback Setback Cul-
Zoning District (Square feet) (Square Feet) (Feet) Interior (Feet) de-sac1 (Feet)
M-S 22,500 None 100 100 80
M-3 22,500 None 100 100 80
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Notes:

  • 1 Also applicable to lots on the exterior side of a street with a centerline radius of four hundred feet or less.

  • 2 Maximum lot area shall not exceed four thousand square feet.

  • 3 As determined by planned development requirements. A minimum site area of 2.0 acres also required.

  • 4 1,500 square feet nonexpandable mobile home.

  • 5 1,800 square feet expandable mobile home.

  • 6 Must be contiguous with similarly zoned land of at least 40,000 square feet (net).

  • 7 Lot area and lot width less than the minimum required may be allowed through approval of a use permit or special development permit provided that overall density is consistent with the zoning district.

  • 8 Number of dwelling units allowed for R-3, R-4 and R-5 is pursuant to Table 19.30.040.

(Prior zoning code § 19.36.020; Ord. 2623-99 § 1; Ord. 2683-01 § 3; Ord. 2810-06 § 4; Ord. 2905-09 § 7)

§ 19.30.030. Average lot area—Reduction.

The minimum lot area in all residential zoning districts, except R-0, R-1.5 and R-1.7 zoning districts, may be reduced to seven thousand six hundred square feet providing the average lot area in each subdivision, subdivision unit or single development equals eight thousand eight hundred square feet. The area of any lot in excess of eight thousand four hun-dred square feet shall be disregarded in computing the average lot area within such subdivision, subdivision unit or single development.

(Prior zoning code § 19.36.030; Ord. 2623-99 § 1)

§ 19.30.040. Dwelling units allowed in multiple-family zoning districts.

Table 19.30.040 (Number of Dwelling Units Allowed R-3, R-4 and R-5 Zoning Districts) shows the number of dwell-ing units allowed per minimum lot area in multiple-family zoning districts. Additional dwelling units may be allowed under Section 19.18.025 (Density bonus).

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City of Sunnyvale, CA § 19.30.040

ZONING

§ 19.30.040

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Table 19.30.040
Number of Dwelling Units Allowed: R-3, R-4 and R-5 Zoning Districts
Minimum Net Lot Area (square feet)
Zoning District:
Number of
Units Allowed R-3 R-4 R-5
1 6500 or less (legally 6500 or less (legally 6500 or less (legally
created) created) created)
2 6500 6500 6500
3 7200 7200 7200
4 8000 8000 8000
5 1 unit for each 1800 sq. 9000 9000
ft.
6 1 unit for each 1800 sq. 10000 10000
ft.
7 1 unit for each 1800 sq. 11000 11000
ft.
8 1 unit for each 1800 sq. 12000 12000
ft.
9 1 unit for each 1800 sq. 13000 13000
ft.
10 1 unit for each 1800 sq. 14000 14000
ft.
11 1 unit for each 1800 sq. 15000 15000
ft.
12 1 unit for each 1800 sq. 16000 16000
ft.
13 1 unit for each 1800 sq. 17000 17000
ft.
14 1 unit for each 1800 sq. 18000 18000
ft.
15 1 unit for each 1800 sq. 19000 19000
ft.
16 1 unit for each 1800 sq. 20000 20000
ft.
17 1 unit for each 1800 sq. 21000 21000
ft.
18 1 unit for each 1800 sq. 22000 22000
ft.
19 1 unit for each 1800 sq. 23000 23000
ft.
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City of Sunnyvale, CA

SUNNYVALE CODE

§ 19.30.040

§ 19.30.060

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Table 19.30.040
Number of Dwelling Units Allowed: R-3, R-4 and R-5 Zoning Districts
Minimum Net Lot Area (square feet)
Zoning District:
Number of
Units Allowed R-3 R-4 R-5
20 1 unit for each 1800 sq. 24000 24000
ft.
21 1 unit for each 1800 sq. 1 unit for each 1200 sq. 1 unit for each 950 sq.
ft. ft. ft.
22 1 unit for each 1800 sq. 1 unit for each 1200 sq. 1 unit for each 950 sq.
ft. ft. ft.
23 1 unit for each 1800 sq. 1 unit for each 1200 sq. 1 unit for each 950 sq.
ft. ft. ft.
24 1 unit for each 1800 sq. 1 unit for each 1200 sq. 1 unit for each 950 sq.
ft. ft. ft.
25 1 unit for each 1800 sq. 1 unit for each 1200 sq. 1 unit for each 950 sq.
ft. ft. ft.
26 1 unit for each 1800 sq. 1 unit for each 1200 sq. 1 unit for each 950 sq.
ft. ft. ft.
27 1 unit for each 1800 sq. 1 unit for each 1200 sq. 1 unit for each 950 sq.
ft. ft. ft.
28 1 unit for each 1800 sq. 1 unit for each 1200 sq. 1 unit for each 950 sq.
ft. ft. ft.
29 1 unit for each 1800 sq. 1 unit for each 1200 sq. 1 unit for each 950 sq.
ft. ft. ft.
30 1 unit for each 1800 sq. 1 unit for each 1200 sq. 1 unit for each 950 sq.
ft. ft. ft.
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(Prior zoning code § 19.36.035; Ord. 2976-12 § 1; Ord. 2623-99 § 1)

§ 19.30.050. Multiple buildings on lot—When permitted.

Any lot or parcel of land in one ownership having an area sufficient for more than one commercial, industrial, or mul-tiple family dwelling or building may be so used and building permits may be issued for multiple buildings in every zoning district, except single family zoning districts where only accessory structures are allowed.

(Prior zoning code § 19.36.050; Ord. 2623-99 § 1)

§ 19.30.060. Minimum floor elevations.

The minimum floor elevation for any building in any zoning district, computed on city datum, shall be four and one-half feet. Provided, however, that when the floor elevation of any building is less than nine feet, all waste from sanitary facilities installed at an elevation of less than nine feet shall flow by gravity to an approved sump and then be pumped to a minimum elevation of

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City of Sunnyvale, CA § 19.30.060 ZONING

§ 19.30.060

nine feet for discharge by gravity to the sanitary system. (Prior zoning code § 19.36.070; Ord. 2623-99 § 1)

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City of Sunnyvale, CA