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Hillsborough City Zoning Code

CHAPTER 17

36 - OFF-STREET PARKING REQUIREMENTS*

17.36.010 - Garage required.

A.

Every newly constructed or substantially enlarged dwelling shall include a garage that meets the definition of "garage" in Chapter 17.08 and the requirements of this Chapter 17.36. No existing garage shall be removed or converted to something other than a garage unless another garage, meeting the requirements of this chapter, is constructed to replace the existing garage.

B.

For purposes of this chapter, a "newly constructed dwelling" is one for which a building permit is issued for the construction of an entirely, or almost entirely, new dwelling. The preservation of a token amount of wall or similar structural part of an existing structure shall not prevent the construction from being deemed a "newly constructed dwelling."

C.

For purposes of this chapter, a "substantially enlarged dwelling" is one for which a building permit is issued for the construction of an addition which results in a net increase in floor area that is greater than fifty percent of the dwelling's existing floor area.

D.

If the construction does not constitute "a newly constructed dwelling" or a "substantially enlarged dwelling" but nonetheless includes the addition of one or more bedrooms and that addition brings to the total number of bedrooms to four or more, additional garage space(s) shall be provided, as necessary, to bring the dwelling into compliance with the minimum number of parking spaces set forth in Section 17.36.030.

E.

For purposes of this chapter, a bedroom is a private room designed for or capable of being used for sleeping, separated from other rooms by a door and accessible to a bathroom (which includes a bathtub or shower) without crossing another room other than a hallway or open area.

(Ord. 639 § 19, 2003)

17.36.020 - Minimum size of parking spaces; required back-up space.

Each garage parking space shall be at least ten feet wide and twenty feet long and have at least seven and a half feet vertical clearance. Each unenclosed parking space shall be at least eight and one-half feet wide and eighteen feet long. Outside and directly in front of each garage door shall be a minimum unobstructed backup space at least twenty-five feet long (measured in a straight line from and perpendicular to the front of the garage doors) and twenty feet wide. The backup space shall be on private property and not in the public right-of-way.

(Ord. 652 § 6, 2003; Ord. 639 § 19, 2003)

17.36.030 - Minimum number of parking spaces; locations of parking spaces.

A.

Every dwelling shall have at least the following number of parking spaces, depending on the number of bedrooms in the dwelling:

Number of bedrooms Required minimum number of parking spaces
1 - 3 Two garage spaces*
4 - 5 Two garage spaces + one more, which may be unenclosed*
6 or more Two garage spaces + two more, which may be unenclosed*

 

* Plus additional parking spaces (which may or may not be enclosed) as recommended by the architecture and design review board, based on the size and design of the dwelling and the size and configuration of the property.

B.

Required garage spaces shall be usable independently of each other. In other words, garage spaces arranged in tandem shall be counted as one required garage space. For purposes of this chapter, spaces arranged in tandem are spaces arranged one behind the other such that only one of the spaces has access to the driveway without crossing over another parking space.

C.

The required backup space in front of the garage doors shall not be counted as required additional parking spaces.

D.

All required parking spaces shall be on the private property and not in the public right-of-way.

(Ord. 639 § 19, 2003)

17.36.035 - Parking spaces for second units.

A.

Parking spaces for second units shall be governed by this section and not by the other sections of this chapter except that Subsection E of Section 17.36.010, Subsection D of Section 17.36.030, and the second sentence of Section 17.36.020 shall apply to second units.

B.

The required minimum parking for second units is as follows:

(i)

Unit with one or two bedrooms: one unenclosed parking space; and

(ii)

Unit with three or more bedrooms: two unenclosed parking spaces; and

(iii)

Parking for second units may be provided as tandem parking on an existing driveway.

C.

Notwithstanding Subsection B of this section, no additional parking shall be required for second units located within one-half mile of a public transit stop or car share vehicle pickup location, second units located entirely within an existing primary residence or an existing accessory structure, or second units otherwise exempt under Government Code Section 65852.2(d) or successor provision. If a second unit replaces an existing garage, carport, or covered parking structure, replacement spaces must be provided to meet the requirements of Chapter 17.36 but may be provided as covered spaces, uncovered spaces, tandem spaces, or mechanical parking lifts.

(Ord. 648 § 9, 2003)

(Ord. No. 743, § 3, 12-12-2016)

17.36.040 - Purpose.

The purpose of these provisions is to alleviate or prevent congestion of the public streets and to promote the public safety and welfare by establishing minimum requirements for off-street parking, and loading and unloading of motor vehicles, at private schools, country clubs, public parks, and private clubs.

(Ord. 639 § 19, 2003)

17.36.050 - Definitions.

The following definitions apply to this part II of this chapter:

"Aisle" means the traveled path through a parking lot between one or two rows of parked vehicles.

"Aisle width" means the width of backout and driving aisle between parking rows.

"Bumper overhang" means the area beyond the wheel stop and parking lot curbs where it is safe and legally permissible for bumpers to extend.

"Length of stall" means the measurement of the individual stall measured perpendicular to the width.

"Parking bay" means the section of a parking lot containing an aisle and one or two rows of parking stalls.

"Ramp" means an inclined portion of a parking structure intended for travel purposes to access different levels or areas of a parking structure and which may provide parking stalls on one or both sides.

"Stall" means a portion of a parking lot designed to hold one vehicle and marked by painted lines on pavement.

1.

"Compact stall" means an off-street parking stall that is eight feet wide and seventeen feet long that is designed to accommodate a vehicle that is less than fifteen feet in overall length and six feet in width.

2.

"Confined stall" means an off-street parking stall that has any obstruction higher than a six inch curb on both sides, including walls, railings, stairwells, columns, or fences.

3.

"End stall" means the last off-street stall in a row or bay of parking that requires a motorist to egress in the direction of ingress and requires additional backup space.

4.

"Restricted stall" means an off-street parking stall that has any structural element, including curbs over six inches on either side.

5.

"Standard stall" means an off-street parking stall that is eight feet six inches wide and eighteen feet long.

"Width of stall" means the clear width of an individual stall measured perpendicular to the angle of parking.

(Ord. 639 § 19, 2003)

17.36.060 - Scope.

This part II of this chapter shall apply to all private schools, country clubs, public parks, and private clubs located in the town. In the event of an increase in intensity of use, change in use, or voluntary upgrade, the following shall apply:

A.

When the intensity of use of any structure or premises is increased through the addition of dwelling units, gross floor area, or other units of measurement used by this part II to determine parking or loading requirements, parking lots and loading facilities shall be provided for such increase in intensity of use.

B.

Whenever the existing use of a structure or premises is hereafter changed to a new use, parking lots or loading facilities shall be provided as required for such new use.

C.

Whenever a parking lot, constructed before the adoption of this part II and the preceding regulations adopted by resolution on June 11, 2001, and not meeting the design provisions of Section 17.36.170, is voluntarily upgraded without a change in or intensification of use, the parking lot shall reflect an improvement towards meeting those design provisions.

(Ord. 639 § 19, 2003)

17.36.070 - Driveways.

Access to garage or parking stalls shall be provided by a driveway or driveways meeting the following requirements:

A.

Driveways may not be less than ten feet wide when serving two or fewer garage or parking stalls and not less than twelve feet wide when serving three or more garage or parking stalls.

B.

Each required off-street parking stall shall open directly upon an aisle or driveway of such width and design as to provide safe and efficient means of vehicular ingress and egress.

C.

The vehicular access to a street designed for the off-street parking lot shall be that which will least interfere with traffic movements and which will provide a safe and efficient means for pedestrians using the parking lot to have access to the building entry.

D.

Driveways shall also meet requirements of the town's fire and engineering departments.

(Ord. 683 § 10, 2008: Ord. 639 § 19, 2003)

17.36.080 - Lots and facilities—Existing.

Off-street parking lots or loading facilities in existence as of June 11, 2001, or provided voluntarily after that date, shall not thereafter be reduced below (or further reduced, if already below) the requirements of this part II of this chapter without prior approval of the city council.

(Ord. 639 § 19, 2003)

17.36.090 - Lots and facilities—Permissible.

Nothing in this part II of this chapter shall be deemed to prevent the voluntary establishment of off-street parking lots or loading facilities to serve an existing use of land or buildings, provided that this part II is adhered to in establishing those lots and facilities.

(Ord. 639 § 19, 2003)

17.36.100 - Damage—Destruction.

For any conforming building or use that is in existence on June 11, 2001, and is subsequently damaged or destroyed and thereafter reconstructed, reestablished, or repaired (and for any legally nonconforming use that is lost by reason of such damage or destruction, off-street parking lots or loading facilities need not be provided, except that parking lots or loading facilities equivalent to any maintained at the time of such damage or destruction shall be restored or continued in operation. However, in no case shall it be necessary to restore or maintain parking lots or loading facilities in excess of those required by this part II of this chapter for equivalent new uses or construction.

(Ord. 639 § 19, 2003)

17.36.110 - Joint parking lots.

Off-street parking lots for different structures or uses, or for mixed uses, may be provided collectively so long as the total number of stalls so located together is not less than the sum of the separate requirements for each use.

(Ord. 639 § 19, 2003)

17.36.120 - Computation.

When determination of the number of off-street parking stalls required by this part II of this chapter results in a requirement of a fractional stall, an additional stall shall be provided.

(Ord. 639 § 19, 2003)

17.36.130 - Stall dimensions.

All required off-street parking stalls shall conform to the following standards:

A.

Width of stall:

1.

Eight feet for compact stalls only.

2.

Eight feet six inches for standard stalls.

3.

Ten feet for two adjacent end or restricted stalls and all confined stalls.

4.

As otherwise required in Section 17.36.150.

B.

Length of stall:

1.

Seventeen feet for compact stalls only.

2.

Eighteen feet for standard stalls.

3.

Stall depths may be reduced two feet where bumper overhang is permissible.

C.

Vertical clearance:

1.

Not less than seven feet over the entire stall area for all stalls.

D.

Marking of compact car stalls:

1.

The surface of each stall shall be clearly marked "SMALL CARS ONLY."

(Ord. 639 § 19, 2003)

17.36.140 - Aisle dimensions.

Aisles serving off-street parking stalls shall conform to the following standards:

A.

Aisles shall be at least twelve feet wide for one-way traffic flow and twenty-two feet for two-way traffic flow.

B.

Aisle widths at turns shall be provided pursuant to the standards of the American Association of State Highways and Transportation Officials (AASHTO), subject to approval by the city engineer.

C.

One-way aisles shall alternate direction, or otherwise provide logical vehicular circulation subject to approval of the city engineer.

D.

Aisles shall provide for non-congestive flow from and into the street by logical relationships with the driveways. A two-way driveway shall directly connect with a two-way aisle. Reversal of the "right-hand rule" of driving for two-way aisles or closely adjacent one-way drives is prohibited.

E.

One-way aisles shall not dead-end.

F.

Circulation requiring use of the street or public right-of-way is prohibited.

(Ord. 639 § 19, 2003)

_____

17.36.150 - Turning radii and turn-around requirements.

Circulation for parking lots shall conform to the following:

A.

Backout onto any public right-of-way shall be prohibited.

B.

All parcels providing three or more permanently maintained garage or parking stalls shall provide an area for turnaround purposes on the site that shall have a minimum turning radius of twenty-four feet and be located adjacent to the entrance of the garage or parking stall, and not on any part of the public right-of-way.

C.

Each end stall in an open or enclosed parking lot shall be provided with a three-foot turning bay or the end stall shall measure at least eleven feet six inches in width. Additional maneuvering space shall be provided for entering vehicles to turn around in the event the parking bays are fully occupied.

D.

Aisles, ramps, turnarounds, and curbs shall be designed with the following minimum radii:

Minimum Radius to Outside of One-Way Ramp Minimum Radius to Inside of Two-Way Ramp
Radius to curbs lower than 6″ (wheel radius) 30′ 18′
Radius to walls, columns, or Structures over 6″ (body overhang radius) 32′ 16′

 

E.

Turning aisles or ramps with two-way traffic shall have radii and aisle widths sufficient for two automobiles to pass on the turn. Ramp widths on turns shall be as follows:

Curb to Curb Wall to Wall
Minimum one-way ramp width 12′ 16′
Minimum two-way ramp width 24′ 28′

 

F.

No portion of a circular ramp may be considered an aisle for automobiles in adjacent bays.

(Ord. 639 § 19, 2003)

_____

17.36.160 - Handicapped parking.

Handicapped parking shall conform to the requirements of the then-current California Building Standards Code.

(Ord. 639 § 19, 2003)

17.36.170 - Design—Maintenance.

A.

All open off-street parking areas shall be improved with a compacted base, surfaced with plant mix asphalt, concrete, or other surfacing, including pervious pavement such as porous asphalt, permeable concrete, and permeable pavers designed to support anticipated vehicle loads, approved by the city engineer. Delineated parking stalls and directional arrows showing traffic movements shall be painted onto the paved off-street parking area and maintained in good condition. Open off-street parking areas surfaced only with gravel and not marked with delineated parking stalls and directional arrows and in existence prior to June 11, 2001, shall not be required to meet the stricter requirements of this paragraph so long as such gravel parking areas are maintained in good condition (weed-free, covered with a thick, level layer of gravel, and adequately drained) and motor vehicles using the area are shown where to park by a parking attendant whenever there is an event or activity that may result in the parking area's being filled to much or all of its capacity.

B.

Parking lots and garages shall be adequately drained and shall integrate green infrastructure measures indicated in the town's green infrastructure plan approved by resolution of the city council.

C.

Any lighting used to illuminate off-street parking areas shall be directed away from residential properties so as not to create a nuisance.

(Ord. 639 § 19, 2003)

(Ord. No. 757, § 14, 10-14-2019)

17.36.180 - Floor area.

Unless otherwise specified, the floor area used for determining off-street parking requirements is the gross floor area of the building(s).

(Ord. 639 § 19, 2003)

17.36.190 - Schedules generally.

Off-street parking stalls shall be provided as listed below. Parking stalls required on an employee basis shall be based on the maximum number of employees on duty plus employees residing on the premises at any one time.

USES MINIMUM PARKING STALLS REQUIRED
Public parks less than three acres in size. 1 stall per 20,000 square feet. On-street parking available along the park's street frontage shall count towards satisfying off-street parking requirements at the rate of one stall for each increment of 22 linear feet.
Country clubs and private clubs 1 stall for each 70 square feet of floor area.
Private Schools:
a. Colleges, universities, and other institutes of higher (post-secondary) learning. 1 stall for each 2 students based on allowed maximum enrollment plus 1 for each member of the faculty and each employee. Plus 1 for every 5 dormitory rooms.
b. Day nurseries, including preschools and nursery schools. 1 stall for each employee. Plus designated spaces for loading and unloading children as follows: 1 space for the first 6 children for which the facility is licensed, plus 1 space for the next 6 children for which the facility is licensed, plus 1 space for the next 18 children for which the facility is licensed, plus 1 space for every 10 children thereafter for which the facility is licensed. (If there are not even multiples of 6, 10, or 18 children, as the case may be, the space required for the last group of children shall apply to however many children are in the last group.)
c. Elementary and junior high schools. 1 for each employee. Plus a designated area on-site for loading and unloading passengers. Plus adequate on-site access and loading for buses.
d. Senior high schools. 1 for each employee. Plus 1 for each 6 students based on allowed maximum enrollment. Plus adequate on-site access and loading for buses.
e. Trade schools, business colleges, and commercial schools. 1 for each employee. Plus 1 for each 3 students, based on allowed maximum enrollment.
f. Multifamily rental housing on private school property for use and occupancy by faculty or other employees of the school. 1 space per unit for studio and one-bedroom units and 1.5 spaces per unit for two or more bedroom units. Shared/flexible parking opportunities may be approved for multifamily rental housing on the school site for use and occupancy by faculty or other employees of the school in conjunction with a permit to operate or for an amendment to the permit to operate.

 

(Ord. 639 § 19, 2003)

(Ord. No. 711, § 4, 11-12-2013)

17.36.200 - Bicycle parking facilities.

A.

A minimum of one bicycle parking facility shall be provided in parking lots containing from thirty to one hundred parking stalls with another bicycle parking facility being provided for each additional one hundred parking stalls or fraction thereof. Additional bicycle parking facilities shall be provided where projected usage as determined by the city engineer indicates a greater need.

B.

Bicycle parking facilities shall be designed to provide access to each bicycle and to public streets and access easements. Bicycle parking facilities may be divided and provided at multiple locations on-site. Each bicycle shall be provided a minimum of eighteen inch side clearance from the centerline of adjacent bicycles and ten inch clearance both front and rear.

C.

Means, such as racks or fixed lockers, shall be provided for securing bicycles. Outdoor bicycle parking facilities shall be highly visible from the principal use and public streets.

D.

Bicycle parking areas and automobile parking areas shall be separated from each other by location or physical barrier.

E.

The ground surface of any bicycle parking facility shall be finished or planted to avoid mud and dust.

F.

Bicycle parking facilities shall integrate green infrastructure measures as such measures are identified as opportunities in the town's green infrastructure plan approved by resolution of the city council and as such measures are technically feasible.

(Ord. 639 § 19, 2003)

(Ord. No. 757, § 15, 10-14-2019)

17.36.210 - Compact car stalls permissible.

Compact car stalls meeting all standards set forth in this part II of this chapter may be permitted as follows:

A.

Where the number of required parking stalls is from ten to one hundred, thirty percent of such stalls may be compact car stalls.

B.

Where the number of required parking stalls is more than one hundred, forty percent of such stalls may be compact car stalls.

C.

If the computation of the number of compact car stalls allowed results in a number that includes a fraction, the number shall be rounded up to the next higher whole number if the fraction exceeds three-fourth and otherwise rounded down to the next lower whole number.

(Ord. 639 § 19, 2003)

17.36.220 - Other uses.

For uses not listed in Section 17.36.190, parking stalls shall be provided on the same basis as required for the most similar listed use, or as determined by the city council.

(Ord. 639 § 19, 2003)

17.36.230 - Off-street loading—Location.

Every private school, country club, and private club shall have at least one on-site off-street loading stall located on the same parcel as the use served. (In the case of multiple legal parcels, the word "parcel" refers to all contiguous parcels devoted to the use in question and "the property line of the parcel" means the perimeter of all the contiguous parcels devoted to the use in question.) Any loading stall for vehicles over a two-ton capacity shall be located at least fifty feet away from the property line of the parcel unless the loading stall is completely enclosed by building walls, a uniformly solid fence or wall, or any combination of these, and such enclosure is at least six feet high. No loading stall shall be located within twenty-five feet of the nearest point of intersection of any two streets.

(Ord. 639 § 19, 2003)

17.36.240 - Off-street loading—Size.

Loading stalls shall be of a size consistent with the loading demands on an average business day for the use of the parcel; provided, however, that all loading stalls shall be at least ten feet wide by at least twenty-five feet long, exclusive of aisle and maneuvering space, and shall have a vertical clearance of at least fourteen feet; and provided, further, that if trucks larger than those normally accommodated by the foregoing dimensions are likely to make deliveries to the parcel, the loading stall, aisles, driveways, turnaround, and overhead clearances shall be appropriately increased.

(Ord. 639 § 19, 2003)

17.36.250 - Off-street loading—Access.

Each required off-street loading stall shall be designed with appropriate means of vehicular access to a street in a manner that will least interfere with traffic movements and shall be designed to preclude backing out onto a public right-of-way.

(Ord. 639 § 19, 2003)

17.36.260 - Off-street loading—Surfacing.

All open off-street loading stalls shall be improved with a compacted base at least five inches thick plus at least three inches of plant mix asphalt or concrete (or other comparable material approved by the city engineer) on top of the base or shall be of a permeable pavement placed on an aggregate base that is designed for the anticipated vehicle load, as indicated by the town's green infrastructure plan approved by resolution of the city council and as approved by the city engineer.

(Ord. 639 § 19, 2003)

(Ord. No. 757, § 16, 10-14-2019)

17.36.270 - Off-street loading—Use for off-street parking requirement prohibited.

Space allocated to any off-street loading stall shall not, while so allocated, be used to satisfy the space requirements for any off-street parking lots or portions thereof.

(Ord. 639 § 19, 2003)