2025 CALGreen · Section 4.106.4.2.2
For a new multifamily building in California, the EV parking requirement depends on the number of dwelling units, the number of parking spaces, and whether those spaces are assigned or unassigned. CALGreen requires low-power Level 2 EV charging receptacles at certain spaces. It also requires installed Level 2 chargers at some remaining unassigned or common-use spaces.
Two types of EV spaces
EV-ready receptacle: A low-power Level 2 receptacle connected to a 208/240-volt, minimum 20-ampere branch circuit. Residents can use it with suitable charging equipment; it is not an installed charging station.
Installed EV charger: A Level 2 EV charging station at an unassigned or common-use space, available to residents or guests.
The basic rule
- If parking spaces are fewer than dwelling units, provide a low-power Level 2 receptacle at every available parking space.
- If parking spaces equal or exceed dwelling units, generally provide one low-power Level 2 receptacle per dwelling unit. In a mixed parking facility, the required receptacles may be at assigned or unassigned spaces, but not both for the same unit.
- For unassigned or common-use parking, install Level 2 chargers at 25% of the unassigned spaces that did not receive the required receptacles. Round up to a whole charging space.
The 25% calculation applies to remaining unassigned spaces, not to assigned spaces or to the entire parking lot. A project with only assigned spaces has no unassigned spaces for this additional charger calculation.
Examples
The mixed-parking examples below place receptacles in assigned spaces first. The installed charger count can change if the approved design instead places more required receptacles in unassigned spaces.
| Dwelling units | Total parking | Assigned | Unassigned | Low-power Level 2 receptacles | Installed Level 2 charging spaces |
|---|---|---|---|---|---|
| 50 | 40 | 30 | 10 | 40 | 0 |
| 50 | 70 | 50 | 20 | 50 | 5 |
| 50 | 70 | 30 | 40 | 50 | 5 |
| 50 | 70 | 0 | 70 | 50 | 5 |
Why does the third example need five chargers? There are 50 units and 70 spaces. The first 30 receptacles go in assigned spaces; another 20 go in unassigned spaces to reach 50. That leaves 20 unassigned spaces. 25% × 20 = 5 installed charging spaces.
Before finalizing the design
These examples describe the statewide 2025 CALGreen requirements for new multifamily construction and assume the stated receptacle placement. Local amendments, exceptions, accessibility, and the actual parking assignment can affect the final design. Confirm the plan with the local authority having jurisdiction.
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Code reference: 2025 CALGreen Section 4.106.4.2.2
