CALGreen Non-Residential EV Charging Requirements

The City of Menlo Park has adopted a local amendment that amends §5.106.5.3 of the 2025 California Green Building Standards Code (CALGreen) (Muni Code §§12.18.120 - 12.18.150). The amended section establishes requirements for electric vehicle (EV) capable spaces and Electric Vehicles Charging Stations (EVCS) in new, additions to and alterations to existing non-residential buildings. 

  • §5.106.5.3 (Muni Code §12.18.130) applies to new non-residential buildings and parking facilities;
  • §5.106.5.3.6 (Muni Code §12.18.050) the power allocation method for applies to new non-residential buildings and parking facilities; and
  • §5.106.5.4 (Muni Code §12.18.060) applies to additions and alterations to existing buildings

Please refer to Muni Code §12.18.120 through §12.18.150 for specific requirements.

§5.106.5.3 EV Capable Spaces and EVCS in new non-residential buildings and parking facilities

Amended Table 5.106.5.3 establishes the number of EV capable and EVCS for new non-residential buildings and parking facilities and is more restrictive than the code requirements.

 TABLE 5.106.5.3.1 – EV CAPABLE SPACES AND EVCS
Total Numbe of
Actual Parking Space		 Number of
Required EV
Capable Spaces 		 Number of
ECS2,3
2-9 2 0
10-25 5 3
26-50 12 6
51-75 20 8
76-100 26 13
101-150 38 19
151-200 53 26
201 and over 30% of total parking
spaces1 		  75% of EV capable
spaces1
  1. Calculation for spaces shall be rounded up to the nearest whole number.
  2. Each EVCS shall reduce the number of required EV capable spaces by the same number.
  3. At least one Level 2 EVSE shall be provided.

 

§5.106.5.3.6 EVCS Power allocation method for

The power allocation method is an alternative to the requirements of Section 5.106.5.3. Amended Table 5.106.5.3.6 can be used to determine the total kVA required based on the actual total number of parking spaces. please see CALGreen section 5.106.5.3.6 for more information.

Table 5.106.5.3.6 – EVCS - POWER ALLOCATION METHOD
Total Number of
Actual Parking Space		 Minimum Total kVA
@6.6 kVA

Total kVA
Required in any
Combinationof EV
Capable3,4,5
Lower Power
Level 2,
Level 21,2
 Or DCFC
2-9 0 0
10-25 26.4 26.4
26-50 52.8 52.8
51-75 85.8 85.8
76-100 112.2 112.2
101-150 165 165
151-200 231 231
201 and over 30% of total parking
spaces x 6.6		 Total required
kVA = P x 20 x 6.6
Where P=Parking
spaces in facility
  1. Level 2 EVSE @ 6.6 kVA minimum.
  2. At least one vel 2 EVSE shall be provided.
  3. Maximum allowed kVA to be utilized for EV capable spaces is 75%.
  4. If EV capable spaces are utilized, they shall meet the requirements of §5.160.5.3.1 EV capable spaces.
  5. For office and retail buildings the maximum allowed kVA to be utilized for EV capable spaces is 25%.

 

§5.106.5.4 EV Capable spaces and EVCS for additions and alterations in existing non-residential buildings and parking facilities

Amended CALGreen section 5.106.5.4 establishes the required number of Level 2 EV capable and EV Ready spaces based on the affected area of work scope (Table below). Please see amended section 5.106.5.4 for full details.

Affected Area of
 Work Scope

 Number of Required
Level 3 EV Capable
Spaces		 Number of Required
EVSE that are Level 2
EV Ready3
1 - 9,999 sq. ft. Voluntary Voluntary
10,000 - 25,000 sq. ft. 5% 1 Can be located in an EV
capable space
Greater than 25,000 sq. ft. 10% One + 1% of total required parking
spaces for the affected area. Can be
located in an EV capable space

1The EV space requirement is based on the required parking associated with the building where the work 
is being performed, inclusive of landscape reserve parking. For additions and alterations, percentages 
are based on the required parking for the affected area of the scope of work.
2Calculations for spaces shall be rounded up to the nearest whole number.
 3The maximum number of required EV spaces and electric vehicle supply equipment (EVSE) shall not
exceed the requirement for EV spaces for new construction of an equivalent development on a parcel
or project site unless it is voluntary.

 

Contact us

Building permits and general questions
650-330-6704
Email 

Inspection questions
Schedule online or 650-330-6767

Alternate Fridays closed

Back to top