Mountain View Municipal Code § 36.12 R4 zoning district

SEC. 36.12. - R4 zoning district standards.¶

New land uses, new structures, and alterations or modifications to existing land uses and structures, shall be designed and constructed in compliance with this section.

(Ord. No. 18.13, § 1, 12/10/13.)

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SEC. 36.12.05. - Limitation on single-family housing.¶

If only one (1) single-family dwelling can be built on an existing lot, the dwelling is subject to R1 development standards (Sec. 36.10.25).

(Ord. No. 18.13, § 1, 12/10/13.)

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SEC. 36.12.10. - R4 zone development standards.¶

The following are minimum standards for development within the R4 zoning district. In addition to the following requirements, multi-family buildings in the R4 zone will also be reviewed in the context of the R4 standards and guidelines. See Sec. 36.16 for small-lot, single-family developments; Sec. 36.16.10 for townhouse developments; and Sec. 36.16.20 for rowhouse developments.

R4 ZONE DEVELOPMENT STANDARDS

Criteria	Primary Criteria required for sites that apply for R4 zoning: (1) cannot be contiguous with R1 or R2 zones; (2) minimum site size of at least 1 acre, except for one hundred (100) percent affordable developments that receive authorization (and reservation of funding allocation) through the city notice of funding availability (NOFA) process; and (3) allowed across the street from R1 zones, only when the street right-of-way is between 80 feet and 135 feet in width. Secondary Criteria to be considered for sites that apply for R4 zoning: See R4 guidelines.	Primary Criteria required for sites that apply for R4 zoning: (1) cannot be contiguous with R1 or R2 zones; (2) minimum site size of at least 1 acre, except for one hundred (100) percent affordable developments that receive authorization (and reservation of funding allocation) through the city notice of funding availability (NOFA) process; and (3) allowed across the street from R1 zones, only when the street right-of-way is between 80 feet and 135 feet in width. Secondary Criteria to be considered for sites that apply for R4 zoning: See R4 guidelines.
Dwelling Unit Types	The following standards apply to multi-family housing. Standards for small-lot, single-family developments, townhouse developments, and rowhouse developments are listed separately in Sec. 36.16 , Sec. 36.16.10 and Sec. 36.16.20 , respectively. The R1 standards ( Sec. 36.10.25 ) apply when there is only one single-family dwelling on a lot, and the R2 standards ( Sec. 36.10.50 ) apply when there is a duplex or two detached single-family dwellings on a lot.	The following standards apply to multi-family housing. Standards for small-lot, single-family developments, townhouse developments, and rowhouse developments are listed separately in Sec. 36.16 , Sec. 36.16.10 and Sec. 36.16.20 , respectively. The R1 standards ( Sec. 36.10.25 ) apply when there is only one single-family dwelling on a lot, and the R2 standards ( Sec. 36.10.50 ) apply when there is a duplex or two detached single-family dwellings on a lot.
Lot Area	Project area—1 acre minimum, except for one hundred (100) percent affordable developments that receive authorization (and reservation of funding allocation) through the city NOFA process. Individual lots in small-lot, single-family, townhouse and rowhouse developments approved through a PUD permit may be smaller.	Project area—1 acre minimum, except for one hundred (100) percent affordable developments that receive authorization (and reservation of funding allocation) through the city NOFA process. Individual lots in small-lot, single-family, townhouse and rowhouse developments approved through a PUD permit may be smaller.
Lot Width	160 feet minimum, except for one hundred (100) percent affordable developments that receive authorization (and reservation of funding allocation) through the city NOFA process.	160 feet minimum, except for one hundred (100) percent affordable developments that receive authorization (and reservation of funding allocation) through the city NOFA process.
Lot Frontage	As provided above for lot width, except that lots on cul-de-sacs or curved portions of streets may have a minimum frontage of 35 feet.	As provided above for lot width, except that lots on cul-de-sacs or curved portions of streets may have a minimum frontage of 35 feet.
Density	80 units per acre maximum.	80 units per acre maximum.
Floor Area Ratio	1.40 maximum for projects that are equal to or under 40 units per acre; 1.95 maximum for projects between 41 and 50 units per acre; or 2.30 maximum for projects that are between 51 and 60 units per acre.	1.40 maximum for projects that are equal to or under 40 units per acre; 1.95 maximum for projects between 41 and 50 units per acre; or 2.30 maximum for projects that are between 51 and 60 units per acre.
Setbacks	See Sec. 36.12.35 for setbacks applicable to accessory structures, Sec. 36.14.75 for exceptions to required setbacks for properties subject to R1 or R2 development standards.	See Sec. 36.12.35 for setbacks applicable to accessory structures, Sec. 36.14.75 for exceptions to required setbacks for properties subject to R1 or R2 development standards.
Setbacks	Front	15 foot minimum.
Setbacks	Side	1 to 2 stories—10 foot minimum; 3 stories—15 foot minimum.
Setbacks	Street Side	15 foot minimum.
Setbacks	Rear	15 foot minimum.
Height Limits	See Sec. 36.08.30 for exceptions to height limits.	See Sec. 36.08.30 for exceptions to height limits.
Height Limits	Maximum building height (to ridge): 62 feet; and Maximum wall height: 52 feet.	Maximum building height (to ridge): 62 feet; and Maximum wall height: 52 feet.
Height Limits	Under certain circumstances subject to design review (see R4 guidelines): Maximum building height (to ridge): 70 feet; and Maximum wall height: 60 feet.	Under certain circumstances subject to design review (see R4 guidelines): Maximum building height (to ridge): 70 feet; and Maximum wall height: 60 feet.
Height Limits	Across the street from R1 zones	>40 foot maximum wall height at the facade, with upper floors set back 10 feet from the facade; Maximum wall height of 52 feet; and Maximum building height (to ridge): 62 feet.
Open Area	30% of site, minimum.	30% of site, minimum.
Open Area	Private Open Space	Average of 40 square feet per unit; and Minimum area shall be 40 square feet, where provided.
Personal Storage	Minimum of 80 square feet enclosed and secured storage area for bulky personal effects (such as recreational equipment).	Minimum of 80 square feet enclosed and secured storage area for bulky personal effects (such as recreational equipment).
Parking	See Article X (Parking and Loading).	See Article X (Parking and Loading).
Signs	See Article XII (Signs).	See Article XII (Signs).

(Ord. No. 18.13, § 1, 12/10/13; Ord. No. 4.19, § 2, 5/14/19; Ord. No. 1.2023, § 2, 2/14/23.)

Exceptions & meaning →