CALGreen · California Green Building Standards Code (CALGreen)

Planning & Design (Division 5.1)

Division 5.1 sets mandatory site‑planning and design rules (reuse, stormwater, bike parking, EV readiness) and connects to voluntary Appendix A5 tier measures.

Last reviewed: July 6, 2026

Overview

Division 5.1 of the California Green Building Standards Code (CALGreen) organizes the site‑planning and design measures that shape nonresidential projects — from reuse and deconstruction of existing structures to site development, stormwater controls, active‑transportation facilities and electric‑vehicle readiness. Key mandatory provisions include deconstruction/reuse requirements (§5.105.1 – §5.105.2) and storm‑water pollution prevention for smaller sites (§5.106.1–§5.106.2) as well as bicycle parking and EV infrastructure rules (§5.106.4; §5.106.5) .

Why this matters: these requirements reduce embodied and operational impacts, protect water quality, and support low‑carbon mobility and resilience on the site. Division 5.1 is integrated with Chapter 5 (Nonresidential mandatory measures) and the voluntary planning & design options in Appendix A5 (CALGreen Tier checklists and elective site measures), so project teams should coordinate Division 5.1 provisions with the Appendix A5 voluntary tiers and verification checklists during design and permitting .

Practical hotspots to review first are the reuse/deconstruction rules (§5.105.1–§5.105.2), the site development and stormwater sections (§5.106.x), bicycle parking (short‑ and long‑term) and EV requirements (including EV capable/EV‑ready specifications and tables); the code includes specific deployment details for schools and other occupancies (see §5.106.5.6 and related subsections) .

In this section

Code references

Grounded in the retrieved California Green Building Standards Code (CALGreen) — click a citation to read the verbatim passage:

  • CALGreen § 602.1 High relevance — show source text

    2025 CALIFORNIA GREEN BUILDING STANDARDS CODE APPENDIX A5-39

    on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

    APPENDIX A5-40 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

    on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

    A5 NONRESIDENTIAL VOLUNTARY MEASURES

    DIVISION A5.6 – VOLUNTARY TIERS

    SECTION A5.601—CALGreen TIER 1 AND TIER 2 Col2 Col3 Col4
    TABLE A5.601 NONRESIDENTIAL BUILDINGS: Green Building Standards Code Proposed Performance Approach
    Note: This table is intended only as an aid in illustrating the nonresidential tier structure (Refer to Checklists A5.602, A5.602.1 and A5.602.2 for
    CALGreen verification guidelines for Mandatory Checklist, Tier 1 Checklist and Tier 2 Checklist.)
    TABLE A5.601 NONRESIDENTIAL BUILDINGS: Green Building Standards Code Proposed Performance Approach
    Note: This table is intended only as an aid in illustrating the nonresidential tier structure (Refer to Checklists A5.602, A5.602.1 and A5.602.2 for
    CALGreen verification guidelines for Mandatory Checklist, Tier 1 Checklist and Tier 2 Checklist.)
    TABLE A5.601 NONRESIDENTIAL BUILDINGS: Green Building Standards Code Proposed Performance Approach
    Note: This table is intended only as an aid in illustrating the nonresidential tier structure (Refer to Checklists A5.602, A5.602.1 and A5.602.2 for
    CALGreen verification guidelines for Mandatory Checklist, Tier 1 Checklist and Tier 2 Checklist.)
    TABLE A5.601 NONRESIDENTIAL BUILDINGS: Green Building Standards Code Proposed Performance Approach
    Note: This table is intended only as an aid in illustrating the nonresidential tier structure (Refer to Checklists A5.602, A5.602.1 and A5.602.2 for
    CALGreen verification guidelines for Mandatory Checklist, Tier 1 Checklist and Tier 2 Checklist.)
    CATEGORY ENVIRONMENTAL
    PERFORMANCE GOAL
    TIER 1 TIER 2
    All Minimum Mandatory
    (See Mandatory Checklist)
    Meet all of the provisions
    of Chapter 5 (See Tier 1 Checklist)
    Meet all of the provisions
    of Chapter 5 (See Tier 2 Checklist)
    DIVISION 5.1
    Planning and Design
    Reuse of existing building See Section A5.105.1 and Section
    A5.105.2 requirements
    See Section A5.105.1 and Section
    A5.105.2 requirements
    DIVISION 5.1
    Planning and Design
    Designated Parking for
    Fuel Efficient Vehicles
    (Tier 1 and Tier 2 only)
    Approx. 35% of total spaces Approx. 50% of total spaces
    DIVISION 5.1
    Planning and Design
    Electric Vehicle Charging Approx. 30% of total spaces Approx. 45% of total spaces
    **DIVISION 5.
  • CALGreen § 301.3 High relevance — show source text

    A5.602

    CALGreen VERIFICATION GUIDELINES MANDATORY MEASURES CHECKLIST

    Application: This checklist shall be used for nonresidential projects that meet one of the following: new construction, building additions of 1,000 square feet or greater, or building alterations with a permit valuation of $200,000 or more pursuant to Section 301.3 AND do not trigger a Tier 1 or Tier 2 requirement:

    Y = Yes (section has been selected and/or included)

    N/A = Not Applicable (code section does not apply to the project mainly used for additions and alterations) O = Other (provide explanation)

    [N] = New construction pursuant to Section 301.3

    [A ] = Additions and/or Alterations pursuant to Section 301.3

    CHAPTER 5
    DIVISIONS
    Col2 SECTION TITLE CODE
    SECTION
    Y N/A O PLAN SHEET,
    SPEC OR
    ATTACH
    DIVISION 5.1
    Planning and
    Design
    Mandatory Deconstruction and reuse of existing structures,
    Scope with Exception
    5.105.1
    DIVISION 5.1
    Planning and
    Design
    Mandatory Reuse of existing building & Verification of compliance with
    note
    5.105.2 and
    5.105.2.1
    DIVISION 5.1
    Planning and
    Design
    Mandatory Storm water pollution prevention for projects that disturb less
    than 1 acre of land
    5.106.1 through
    5.106.2
    DIVISION 5.1
    Planning and
    Design
    Mandatory Short-term bicycle parking (with exception) 5.106.4.1.1
    DIVISION 5.1
    Planning and
    Design
    Mandatory Long-term bicycle parking 5.106.4.1.2
    through
    5.106.4.1.2.3
    DIVISION 5.1
    Planning and
    Design
    Mandatory Electric vehicle (EV) charging [N] with Section 5.106.3.1,
    5.106.5.3.2 and associated Table 5.106.5.3.1
    OR Independently
    Power Allocation Method:
    Section 5.106.5.3.6 and associated Table 5.106.5.3.6
    5.106.5.3.1,
    5.106.5.3.2,
    Table 5.106.5.3.1,
    5.106.5.3.2.1,
    5.106.5.3.2.2,
    5.106.5.3.2.3,
    5.106.5.3.2.4,
    5.106.5.3.3,
    5.106.5.3.4 and
    5.106.5.3.5
    OR
    5.106.5.3.3,
    5.106.5.3.4,
    5.106.5.3.5,
    5.106.5.3.6,
  • CALGreen § 3-4 High relevance — show source text

    302 Mixed Occupancy Buildings . . . . . . . . . . . . . . . . . . . . . . .3-4 303 Phased Projects. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4 304 Voluntary Tiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4 305 CALGreen Tier 1 and CALGreen Tier 2 . . . . . . . . . . . . . .3-4

    306 Voluntary Measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4

    CHAPTER 4 RESIDENTIAL MANDATORY MEASURES . . . . . . 4-3

    4.1 Planning and Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3 4.2 Energy Efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7 4.3 Water Efficiency and Conservation . . . . . . . . . . . . . . . . .4-9 4.4 Material Conservation and Resource Efficiency . . . . 4-11 4.5 Environmental Quality . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

    CHAPTER 5 NONRESIDENTIAL MANDATORY MEASURES . . 5-3

    5.1 Planning and Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3 5.2 Energy Efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15 5.3 Water Efficiency and Conservation . . . . . . . . . . . . . . . 5-19 5.4 Material Conservation and Resource Efficiency . . . . 5-23 5.5 Environmental Quality . . . . . . . . . . . . . . . . . . . . . . . . . . 5-31

    CHAPTER 6 REFERENCED ORGANIZATIONS

    AND STANDARDS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

    601 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3

    CHAPTER 7 INSTALLER AND SPECIAL

    INSPECTOR QUALIFICATIONS . . . . . . . . . . . . . . . . . . . . . . 7-3 701 General (Reserved) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3 702 Qualifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3

  • CALGreen § 5.508.2 High relevance — show source text

    000 square feet or more|5.508.2
    through
    5.508.2.6.3||||| |||END OF MANDATORY PROVISIONS||||||

    Documentation Author's / Responsible Designer's Declaration Statement
    □ Mandatory: I attest that this mandatory provisions checklist is accurate and complete.
    Col2
    Signature: Signature:
    Company: Date:
    Address: License:
    City/State/Zip: Phone:

    2025 CALIFORNIA GREEN BUILDING STANDARDS CODE APPENDIX A5-47

    on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

    APPENDIX A5NONRESIDENTIAL VOLUNTARY MEASURES

    A5.602.1

    CALGreen VERIFICATION GUIDELINES

    TIER 1 CHECKLIST

    Application: This checklist shall be used for nonresidential projects that meet the following: new construction, or building additions of 1,000 square feet or greater, or building alterations with a permit valuation of $200,000 or more pursuant to Section 301.3, AND are adopting Tier 1 voluntary measures.

    Note: All applicable mandatory requirements in Chapter 5 shall be met prior to applying Tier 1 voluntary measures.

    Instructions:

    Comply with all Tier 1 prerequisite measures from the various categories shown on the table below.

    Add a “ Y ” to all mandatory and Tier 1 prerequisite measures in the appropriate columns.

    Select the required number of additional electives from those categories shown on the table below and add a “ Y ” on the selected elective and add an “ N ” on the rest.

    Count the total number of Tier 1 prerequisite measures plus the additional electives and write down the total number at the end of the checklist. Determine if the required number of Tier 1 measures have been selected to achieve Tier 1 compliance.

    Y = Yes (section has been selected and/or included) N = No (section has not been selected and/or included) O = Other (provide explanation)

    [N] = New construction pursuant to Section 301.3

    [A] = Additions and/or Alterations pursuant to Section 301.3

    CHAPTER 5
    DIVISIONS
    Col2 SECTION TITLE CODE
    SECTION
    Y N O PLAN SHEET,
    SPEC OR
    ATTACH
    DIVISION 5.1
    Planning and
    Design
    (continued)
    Mandatory Deconstruction and reuse of existing structures,
    Scope with Exception
    5.105.1
    DIVISION 5.1
    Planning and
    Design
    (continued)
    Mandatory Reuse of existing building & Verification of compliance with note 5.105.2 and 5.105.2.1
    DIVISION 5.1
    Planning and
    Design
    (continued)
    Mandatory Storm water pollution prevention for projects that disturb
    less than 1 acre of land
    5.106.1 through
    5.106.2
    DIVISION 5.1
    Planning and
    Design
    (continued)
    Mandatory Short-term bicycle parking 5.106.4.1.
  • CALGreen § 602.2 High relevance — show source text
    Documentation Author's / Responsible Designer's Declaration Statement
    Check the appropriate box(es) for the list below.
    □ Mandatory: I attest that the mandatory provisions checklist is accurate and complete.
    □ Tier 1 compliant: I attest that the total number of voluntary measures selected meet or exceed the total number required
    to achieve Tier 1 compliance.
    □ Partial Tier 1 compliant: I attest that the total number of voluntary measures selected do not meet the total number
    required to achieve Tier 1 compliance: however, partial Tier 1 compliance has been achieved.
    Col2
    Signature:
    Company: Date:
    Address: License:
    City/State/Zip: Phone:

    APPENDIX A5-54 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

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    APPENDIX A5NONRESIDENTIAL VOLUNTARY MEASURES

    A5.602.2

    CALGreen VERIFICATION GUIDELINES

    TIER 2 CHECKLIST

    Application: This checklist shall be used for nonresidential projects that meet the following: new construction, or building additions of 1,000 square feet or greater, or building alterations with a permit valuation of $200,000 or more pursuant to Section 301.3, AND are adopting Tier 2 voluntary measures.

    Note: All applicable mandatory requirements in Chapter 5 shall be met prior to applying Tier 2 voluntary measures.

    Instructions:

    Comply with all Tier 2 prerequisite measures from the various categories shown on the table below.

    Add a “ Y ” to all mandatory and Tier 2 prerequisite measures in the appropriate columns.

    Select the required number of additional electives from those categories shown on the table below and add a “ Y ” on the selected elective and add an “ N ” on the rest.

    Count the total number of Tier 2 prerequisite measures plus the additional electives and write down the total number at the end of the checklist. Determine if the required number of Tier 2 measures have been selected to achieve Tier 2 compliance.

    Y = Yes (section has been selected and/or included) N = No (section has not been selected and/or included) O = Other (provide explanation)

    [N] = New construction pursuant to Section 301.3

    [A] = Additions and/or Alterations pursuant to Section 301.3

    CHAPTER 5
    DIVISIONS
    Col2 SECTION TITLE CODE
    SECTION
    Y N O PLAN SHEET,
    SPEC OR
    ATTACH
    DIVISION 5.1
    Planning and
    Design
    (continued)
    Mandatory Deconstruction and reuse of existing structures,
    Scope with Exception
    5.105.1
    DIVISION 5.1
    Planning and
    Design
    (continued)
    Mandatory Reuse of existing building & Verification of compliance with
    note
    5.105.2 and 5.105.2.1
    DIVISION 5.1
    Planning and
    Design
    (continued)
    Mandatory Storm water pollution prevention for projects that disturb
    less than 1 acre of land
    5.106.1 through
    5.106.
  • CALGreen § 8-10 Medium relevance — show source text

    8-10 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

    on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

    COMPLIANCE FORMS, WORKSHEETS AND REFERENCE MATERIAL

    Title 23, Waters, California Code of Regulations

    MWELO and supporting documents, including a water budget calculator, are available at: https://www.water.ca.gov/.

    2025 CALIFORNIA GREEN BUILDING STANDARDS CODE 8-11

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    8-12 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

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    COMPLIANCE FORMS, WORKSHEETS AND REFERENCE MATERIAL

    Commissioning Referenced Standards for Non-Energy Systems

    The following CALGreen Referenced Standards are included herein as a convenience for the users of the California Green Building Standards Code, but they are not considered to be part of the code unless they are officially adopted by a local jurisdiction.

    Contents Page Part 1: Standards for Compliance with Building Commissioning 8-14 Part 2: Commissioning Sample Forms and Templates 8-23

    2025 CALIFORNIA GREEN BUILDING STANDARDS CODE 8-13

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    COMPLIANCE FORMS, WORKSHEETS AND REFERENCE MATERIAL

    PART 1 STANDARDS FOR COMPLIANCE WITH BUILDING COMMISSIONING

    Reference: Section 5.410.2, Commissioning.

    Introduction:

    The purpose of this code is to improve public health, safety and general welfare by enhancing the design and construction of buildings through the use of concepts that reduce negative and increase positive environmental impacts. Commissioning is a vital element in this effort.

    Definitions used in the CALGreen Cx Reference standard:

    Acronyms

    BOD Basis of Design

    Cx Commissioning

    FPT Functional Performance Test

    HVAC Heating, Ventilating and Air-Conditioning

    O&M Operations and Maintenance

    OPR Owner’s Project Requirements

    Glossary:

    Acceptance Criteria— The conditions that must be met for systems or equipment to meet defined and expected outcomes.

    Commissioning (Cx)— Building commissioning as required in this code involves a quality assurance process that begins during design and continues to occupancy. Commissioning verifies that the new building operates as the owner intended and that building staff are prepared to operate and maintain its systems and equipment. Exceptions are allowed for dry storage warehouses of any size and conditioned spaces under 10,000 square feet accessory to them; and for tenant improvements under 10,000 square feet within a larger space.

    Owner— The individual or entity holding title to the property on which the building is constructed.

    Commissioning Coordinator— The person who coordinates the commissioning process. This can be either a third-party commissioning provider or an experienced member of the design team or owner in-house staff member.

    Commissioning Team— The key members of each party involved with the project designated to provide insight and carry out tasks necessary for a successful commissioning project. Team members may include the commissioning coordinator, owner or owner’s representative, building staff, design professionals, contractors or manufacturer’s representatives and testing specialists.

  • CALGreen § 405.4 Medium relevance — show source text
    1. From Division A5.4,

    a. Comply with recycled content of 15 percent of materials based on estimated total cost, or use two products from Table A5.405.4 for at least 75 percent by cost in Section A5.405.4.1. b. Comply with the 80-percent reduction in construction and demolition waste in Section A5.408.3.1. c. Comply with three elective measures selected from this division.

    1. From Division A5.5,

    a. Comply with resilient flooring systems for 100 percent of resilient flooring in Section A5.504.4.7.1. Exception: Allowance may be permitted in Tier 2 for up to 5-percent specialty purpose flooring. b. Comply with thermal insulation meeting 2009 CHPS low-emitting materials list and no added formaldehyde in Section A5.504.4.8.1.

    c. Comply with three elective measures selected from this division. 6. Comply with three additional elective measures selected from any division.

    1 Cool roof is required for compliance with Tiers 1 and 2 and may be used to meet energy standards in Part 6, exceed energy standards and to mitigate heat island effect.

    A5.601.4 Compliance verification. Compliance with Section A5.601.2 or A5.601.3 shall be as required in Chapter 7 of this code. Compliance documentation shall be made part of the project record as required in Section 5.410.2 or 5.410.3.

    2025 CALIFORNIA GREEN BUILDING STANDARDS CODE APPENDIX A5-43

    on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

    APPENDIX A5NONRESIDENTIAL VOLUNTARY MEASURES

    A5.602

    CALGreen VERIFICATION GUIDELINES MANDATORY MEASURES CHECKLIST

    Application: This checklist shall be used for nonresidential projects that meet one of the following: new construction, building additions of 1,000 square feet or greater, or building alterations with a permit valuation of $200,000 or more pursuant to Section 301.3 AND do not trigger a Tier 1 or Tier 2 requirement:

    Y = Yes (section has been selected and/or included)

    N/A = Not Applicable (code section does not apply to the project mainly used for additions and alterations) O = Other (provide explanation)

    [N] = New construction pursuant to Section 301.3

    [A ] = Additions and/or Alterations pursuant to Section 301.3

    CHAPTER 5
    DIVISIONS
    Col2 SECTION TITLE CODE
    SECTION
    Y N/A O PLAN SHEET,
    SPEC OR
    ATTACH
    DIVISION 5.1
    Planning and
    Design
    Mandatory Deconstruction and reuse of existing structures,
    Scope with Exception
    5.105.1
    DIVISION 5.1
    Planning and
    Design
    Mandatory Reuse of existing building & Verification of compliance with
    note
    5.105.2 and
    5.105.2.1
    DIVISION 5.1
    Planning and
    Design
    Mandatory Storm water pollution prevention for projects that disturb less
    than 1 acre of land
    5.106.
  • CALGreen § 602.1 Medium relevance — show source text

    VOLUNTARY MEASURES. . . . . . . . . . . . . . . . . APPENDIX A5-3

    A5.1 Planning and Design . . . . . . . . . . . . . . . . . APPENDIX A5-3 A5.2 Energy Efficiency . . . . . . . . . . . . . . . . . . . APPENDIX A5-13 A5.3 Water Efficiency and Conservation . . . APPENDIX A5-19 A5.4 Material Conservation and Resource Efficiency . . . . . . . . . . . . . . . . . . . . . . . . APPENDIX A5-25 A5.5 Environmental Quality . . . . . . . . . . . . . . APPENDIX A5-35 A5.6 Voluntary Tiers . . . . . . . . . . . . . . . . . . . . . APPENDIX A5-41 A5.601 CALGren Tier 1 and Tier 2. . . . . . . . . . APPENDIX A5-41

    A5.602 CALGreen Verification Guidelines Mandatory Measures Checklist . . . . . . . . . . . . . . . APPENDIX A5-44

    A5.602.1 CALGreen Verification Guidelines

    Tier 1 Checklist . . . . . . . . . . . . . . . . . APPENDIX A5-48

    A5.602.2 CALGreen Verification Guidelines

    Tier 2 Checklist . . . . . . . . . . . . . . . . . APPENDIX A5-55

    APPENDIX A6 VOLUNTARY STANDARDS FOR HEALTH

    FACILITIES [OSHPD 1, 2 & 4] . . . . . . . . . . . APPENDIX A6.1-3 A6.1 Site Planning and Design . . . . . . . . . . . APPENDIX A6.1-3 A6.2 Energy Efficiency . . . . . . . . . . . . . . . . . . APPENDIX A6.1-3 A6.4 Material Conservation and Resource Efficiency . . . . . . . . . . . . . APPENDIX A6.1-32 A6.5 Environmental Quality . . . . . . . . . . . . APPENDIX A6.1-33

    INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INDEX-1

    HISTORY NOTE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HIST-1

    2025 CALIFORNIA GREEN BUILDING STANDARDS CODE vii

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    viii 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

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    CALIFORNIA GREEN BUILDING STANDARDS CODE – MATRIX ADOPTION TABLE

    CHAPTER 1 – ADMINISTRATION

    (Matrix Adoption Tables are nonregulatory, intended only as an aid to the code user. See Chapter 1 for state agency authority and building applications.)

    |Adopting

  • CALGreen § 8-40 Medium relevance — show source text

    . . . . . . . . . . . . . 8-40

    APPENDIX A4 RESIDENTIAL

    VOLUNTARY MEASURES. . . . . . . . . . . . . . . . . APPENDIX A4-3

    A4.1 Planning and Design . . . . . . . . . . . . . . . . . APPENDIX A4-3 A4.2 Energy Efficiency . . . . . . . . . . . . . . . . . . . . APPENDIX A4-9 A4.3 Water Efficiency and Conservation . . . APPENDIX A4-13 A4.4 Material Conservation and Resource Efficiency . . . . . . . . . . . . . . . . . . . . . . . . APPENDIX A4-15 A4.5 Environmental Quality . . . . . . . . . . . . . . APPENDIX A4-19 A4.6 Tier 1 and Tier 2 . . . . . . . . . . . . . . . . . . . . APPENDIX A4-21

    Division A4.6—Residential Occupancies Application Checklist . . . . . . . . . . . . . APPENDIX A4-23 A4.7 Residential Model Ordinance . . . . . . . . . APPENDIX A4-31

    APPENDIX A5 NONRESIDENTIAL

    VOLUNTARY MEASURES. . . . . . . . . . . . . . . . . APPENDIX A5-3

    A5.1 Planning and Design . . . . . . . . . . . . . . . . . APPENDIX A5-3 A5.2 Energy Efficiency . . . . . . . . . . . . . . . . . . . APPENDIX A5-13 A5.3 Water Efficiency and Conservation . . . APPENDIX A5-19 A5.4 Material Conservation and Resource Efficiency . . . . . . . . . . . . . . . . . . . . . . . . APPENDIX A5-25 A5.5 Environmental Quality . . . . . . . . . . . . . . APPENDIX A5-35 A5.6 Voluntary Tiers . . . . . . . . . . . . . . . . . . . . . APPENDIX A5-41 A5.601 CALGren Tier 1 and Tier 2. . . . . . . . . . APPENDIX A5-41

    A5.602 CALGreen Verification Guidelines Mandatory Measures Checklist . . . . . . . . . . . . . . . APPENDIX A5-44

    A5.602.1 CALGreen Verification Guidelines

    Tier 1 Checklist . . . . . . . . . . . . . . . . . APPENDIX A5-48

    A5.602.2 CALGreen Verification Guidelines

    Tier 2 Checklist . . . . . . . . . . . . . . . . . APPENDIX A5-55

    APPENDIX A6 VOLUNTARY STANDARDS FOR HEALTH

  • CALGreen § 1-5 Medium relevance — show source text

    102 Construction Documents

    and Installation Verification . . . . . . . . . . . . . . . . . . . .1-5

    103 Building Standards Commission. . . . . . . . . . . . . . . . . . .1-5 104 Department of Housing and Community Development. . . . . . . . . . . . . . . . . .1-6 105 Division of the State Architect . . . . . . . . . . . . . . . . . . . . .1-6

    106 Office of Statewide Health Planning and Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6

    CHAPTER 2 DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

    201 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

    202 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

    CHAPTER 3 GREEN BUILDING . . . . . . . . . . . . . . . . . . . . . . . . 3-3

    301 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3

    302 Mixed Occupancy Buildings . . . . . . . . . . . . . . . . . . . . . . .3-4 303 Phased Projects. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4 304 Voluntary Tiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4 305 CALGreen Tier 1 and CALGreen Tier 2 . . . . . . . . . . . . . .3-4

    306 Voluntary Measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4

    CHAPTER 4 RESIDENTIAL MANDATORY MEASURES . . . . . . 4-3

    4.1 Planning and Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3 4.2 Energy Efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7 4.3 Water Efficiency and Conservation . . . . . . . . . . . . . . . . .4-9 4.4 Material Conservation and Resource Efficiency . . . . 4-11 4.5 Environmental Quality . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

    CHAPTER 5 NONRESIDENTIAL MANDATORY MEASURES . . 5-3

  • CALGreen § 101.1 Medium relevance — show source text

    1 ADMINISTRATION

    SECTION 101—GENERAL

    101.1 Title. These regulations shall be known as the California Green Building Standards Code, may be cited as such, and will be referred to herein as “this code.” It is intended that it shall also be known as the CALGreen Code. The California Green Building Stan- dards Code is Part 11 of thirteen parts of the official compilation and publication of the adoption, amendment and repeal of building regulations to the California Code of Regulations, Title 24, also referred to as the California Building Standards Code.

    101.2 Purpose. The purpose of this code is to improve public health, safety and general welfare by enhancing the design and construction of buildings through the use of building concepts having a reduced negative impact or positive environmental impact and encouraging sustainable construction practices in the following categories:

    1. Planning and design.
    2. Energy efficiency.
    3. Water efficiency and conservation.
    4. Material conservation and resource efficiency.
    5. Environmental quality.

    101.3 Scope. The provisions of this code shall apply to the planning, design, operation, construction, use and occupancy of every newly constructed building or structure, unless otherwise indicated in this code, throughout the State of California.

    It is not the intent that this code substitute or be identified as meeting the certification requirements of any green building

    program.

    101.3.1 State-regulated buildings, structures and applications. Provisions of this code shall apply to the following buildings, structures and applications regulated by state agencies as specified in Sections 103 through 106, except where modified by local ordinance pursuant to Section 101.7. When adopted by a state agency, the provisions of this code shall be enforced by the appropriate enforcing agency, but only to the extent of authority granted to such agency by statute.

    1. State-owned buildings, including buildings constructed by the Trustees of the California State University, and to the extent permitted by California law, buildings designed and constructed by the Regents of the University of California and regulated by the Building Standards Commission. See Section 103 for additional scoping provisions.

    2. Energy efficiency standards regulated by the California Energy Commission.

    3. All residential buildings constructed throughout the State of California, including but not limited to, hotels, motels, lodging houses, apartments, dwellings, dormitories, condominiums, shelters for homeless persons, congregate residences, employee housing, factory-built housing and other types of dwellings containing sleeping accommodations with or without common toilets or cooking facilities regulated by the Department of Housing and Community Development. See Section 104 for additional scoping provisions.

    4. Public elementary and secondary schools, and community college buildings regulated by the Division of the State Architect. See Section 105 for additional scoping provisions.

    5. Qualified historical buildings and structures and their associated sites regulated by the State Historical Building Safety Board within the Division of the State Architect.

    6. General acute care hospitals, acute psychiatric hospitals, skilled nursing and/or intermediate care facilities, clinics licensed by the Department of Public Health and correctional treatment centers regulated by the Office of Statewide Health Planning and Development. See Section 106 for additional scoping provisions.

    7. Graywater systems regulated by the Department of Water Resources and the Department of Housing and Community Development.

    8. Green building standards for occupancies where no state agency has authority or expertise, adopted by the California Building Standards Commission. See Section 103 for additional scoping provisions.

  • CALGreen § 2.1 Medium relevance — show source text

    2||||X|||||||||||||||||||| |R325.2.1||||X|||||||||||||||||||| |R325.3||||X|||||||||||||||||||| |R325.4.1||||X|||||||||||||||||||| |R325.8||||X|||||||||||||||||||| |R325.9||||X|||||||||||||||||||| |R326||||X|||||||||||||||||||| |R327.1||||X|||||||||||||||||||| |Figure R327.1||||†|||||||||||||||||||| |R328||||X|||||||||||||||||||| |R329|||X||||||||||||||||||||| |R329.2||||X|||||||||||||||||||| |R330|||X||||||||||||||||||||| |R331|||X||||||||||||||||||||| |R332|||X||||||||||||||||||||| |R334||||X|||||||||||||||||||| |R334.1||||X|||||||||||||||||||| |R335|||X||||||||||||||||||||| |R336|||X||||||||||||||||||||| |R337 User Note|||X|X|||||||||||||||||||| |R338 - R338.4|||X||||||||||||||||||||| |R340||||X|||||||||||||||||||| |R340.1||||X||||||||||||||||||||

    The state agency does not adopt sections identified with the following symbol: † The � designation indicates that the State Fire Marshal’s adoption of this chapter or individual sections is applicable to structures subject to HCD 1.

    2025 CALIFORNIA RESIDENTIAL CODE 3-3

    on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

    3-4 2025 CALIFORNIA RESIDENTIAL CODE

    on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

    Part III— Building Planning and Construction

    3 BUILDING PLANNING

    User notes:

    About this chapter: Chapter 3 contains a wide array of building planning requirements that are critical to designing a safe and usable building. This includes, but is not limited to, requirements related to general structural design, fire-resistant construction, light, ventilation, sanitation, plumbing fixture clearances, minimum room area and ceiling height, safety glazing, means of egress, automatic fire sprinkler systems, smoke and carbon monoxide alarm systems, accessibility and solar energy systems.

    SECTION R300—SITE DRAINAGE

    R300.1 Storm water drainage and retention during construction. Projects which disturb less than one acre of soil and are not part of a larger common plan of development which in total disturbs one acre or more, shall manage storm water drainage during construction in accordance with the California Green Building Standards Code, Chapter 4, Division 4.1.

    R300.2 Grading and paving. Construction plans shall indicate how the site grading or drainage system will manage all surface water flows to keep water from entering buildings in accordance with the California Green Building Standards Code, Chapter 4, Division 4.1.

    SECTION R301—DESIGN CRITERIA

Frequently asked questions

Which Division 5.1 sections are most important to address at plan check?

Start with the reuse/deconstruction provisions (§5.105.1 and §5.105.2), the stormwater/site development sections (§5.106.1–§5.106.2), bicycle parking (§5.106.4.1.1–§5.106.4.1.2.3) and the EV provisions (§5.106.5 and related tables); these are called out explicitly on the Chapter 5 mandatory checklist .

Does Division 5.1 require EV infrastructure or just encourage it?

Division 5.1 contains mandatory EV‑infrastructure requirements for many new nonresidential projects, including EV capable/EV ready spaces and detailed raceway/power provisions (see §5.106.5 and §5.106.5.6 for schools, plus the associated tables and installation rules) .

How does Division 5.1 fit with voluntary Tier measures?

Voluntary planning and design measures are collected in Appendix A5 (A5.1 and the Tier checklists). Projects pursuing Tier 1 or Tier 2 should meet Division 5.1 mandatory provisions first and then follow Appendix A5 elective and tier prerequisites as documented in the CALGreen Tier checklists

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