1
LOCAL BUILDING ENERGY STANDARDS
FOR RESIDENTIAL NEW CONSTRUCTION
SINGLE FAMILY BUILDINGS, MULTI-FAMILY BUILDINGS, and DETACHED ADUs
These building standards have been established for new residential construction in the City of Los Altos.
These local Reach Code amendments are to be effective January 26, 2021; pending approval at the State
level. This checklist provides applicants the requirements that apply to their project and must be submitted
with the Planning application. Approved Reach Code Checklist must be incorporated into all Building
submittal plan sets.
PROJECT PROCESS
1
PROJECT DESIGN
It is important for project owners, architects, engineers, and designers to understand the
applicable state and local building requirements prior to project design. Early consideration of
these standards allows for design of buildings and systems that are compliant, energy efficient,
and cost effective, and minimizes back and forth when applying for the project permit.
2
PLANNING APPLICATION
Your project is subject to planning review, be prepared to identify in your planning application
what compliance methods you have selected and how you plan to meet the requirements. If you
anticipate difficulties meeting the requirements outlined in the Local Building Energy Standards
Checklist, these concerns and any requests for exemptions should be identified in your planning
application.
3
INITIAL SUBMITTAL
Include completed Local Building Energy Standards Checklist (page 2 of this document).
4
FINAL INSPECTION
The Building Division will conduct required inspections to verify compliance of Local Building
Energy Standards.
DEFINITION OF “NEW CONSTRUCTION”
A building that has never been used or occupied for any purpose and supported by 1) a new structural foundation, 2) an
existing, structural foundation where a building has been demolished and removed to floor or below, or 3) a combination
of 1) and 2).
DEFINITION OF ALMS (Automatic Load Management Systems)
A control system which allows multiple EV chargers or EV-Ready electric vehicle outlets to share a circuit or panel and
automatically reduce power at each charger, providing the opportunity to reduce electrical infrastructure costs and/or
provide demand response capability. ALMS systems must be designed to deliver at least 1.4kW to each EV Capable, EV
Ready or EVCS space served by the ALMS. The connected amperage on-site shall not be lower than the required
connected amperage per Part 11, 2019 California Green Building Code for the relevant building types.
For more information, please visit https://www.losaltosca.gov/communitydevelopment/page/planning-services
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LOCAL BUILDING ENERGY STANDARDS CHECKLIST
FOR RESIDENTIAL NEW CONSTRUCTION
SINGLE FAMILY BUILDINGS, MULTI-FAMILY BUILDINGS, and DETACHED ADUs
PROJECT ADDRESS: _____________________________________________________________________
APPLICANT NAME: _______________________________________________DATE:___________________
SINGLE FAMILY DWELLING MULTI-FAMILY (2-9 UNITS) MULTI-FAMILY (10+ UNITS) ADU
1. ENERGY EFFICIENCY AND ELECTRIFICATION
Note: all projects must comply with mandatory elements of the 2019 Building Energy Efficiency Standards as well
as the local and state code requirements.
New Single Family Buildings, Multi-Family Buildings (2 to 9 units) and Detached ADUs
Exception: Gas-Fueled Cooking and Fireplace appliances installed (applicant must comply with the
prewiring provisions, Subsection 12.22.020 B.3)
N
o natural gas appliances/equipment installed
N
o gas meter infrastructure
N/A
A
ll-Electric for New Multi-Family Buildings (10+ Units)
No natural gas appliances/equipment installed
No gas meter infrastructure
N
/A
2. ELECTRIC VEHICLE (EV) CHARGING AND READINESS
Complies with California Green Building Standards Code 4.106.4; AND
C
omplies with local EV charging requirements as specified below
N
ew one- and two-family dwellings and townhouses with attached or detached private garages.
At least 1 parking space per dwelling unit install at least one Level 2 EV Ready Space in the garage.
I
f multiple (two or more) garage parking spaces are provided for a dwelling unit, install at least two Level
2 EV Ready Spaces.
N
/A
3
New Multifamily dwellings.
Complies with local EV charging requirements as specified below.
(All % requirements are to be rounded up to the nearest whole number. All percentages should reflect
percentage of total parking spaces on site.)
______ Total number of parking spaces *
Multi-family buildings with less than or equal to 20 dwelling units:
Install at least one Level 2 EV Ready Space for each dwelling unit.
Total________
More than 20 multifamily dwelling units constructed on a building site:
25% of the dwelling units with parking space(s) shall be provided with at least one Level 2 EV Ready
Space. Total__________
(Calculations for the required minimum number of Level 2 EV Ready spaces shall be rounded up to the
nearest whole number and not less than 21 spaces.)
In addition, each remaining dwelling unit with parking space(s) shall be provided with at least one Level
1 EV Ready Space. Total__________
N/A
Exception: For all multifamily Affordable Housing, 10% of dwelling units with parking space(s) shall be
provided with at least one Level 2 EV Ready Space. Calculations for the required minimum number of Level 2
EV Ready spaces shall be rounded up to the nearest whole number. The remaining dwelling units with
parking space(s) shall each be provided with at least one Level 1 EV Ready Space.
Note:
1. An Automated Load Management System (ALMS) may be installed to decrease electrical service and
transformer costs associated with EV Charging Equipment subject to review of the authority having
jurisdiction.
2. Installation of Level 2 EV Ready Spaces above the minimum number required level may offset the
minimum number Level 1 EV Ready Spaces required on a 1:1 basis.
3. The requirements apply to multifamily buildings with parking spaces including: a) assigned or leased to
individual dwelling units, and b) unassigned residential parking.
4. Local jurisdictions may consider allowing exceptions through their local process, on a case by case basis,
if a building permit applicant provides documentation detailing that the increased cost of utility service or
on-site transformer capacity would exceed an average of $4,500 among parking spaces with Level 2 EV
Ready Spaces and Level 1 EV Ready Spaces. If costs are found to exceed this level, the applicant shall
provide EV infrastructure up to a level that would not exceed this cost for utility service or on-site
transformer capacity.
5. In order to adhere to accessibility requirements in accordance with California Building Code Chapters 11A
and/or 11B, it is recommended that all accessible parking spaces for covered newly constructed
multifamily dwellings are provided with at least a Level 1 or Level 2 EV Ready Spaces.
* Definitions
o EV Level 1: a minimum 110V, 20A circuit
o EV Level 2: a minimum 208V, 40A circuit
o EV Capable: a parking space equipped with raceway and electrical panel capacity to support a
future EV charging station
o EV Ready: a parking space equipped with raceway, wiring, receptacle, and electrical capacity to
support a future EV charging station
o EV Charging Station: a parking space with an EV charger installed
____________________________ __ ______________
Applicant Signature at Submittal Date