A4.602 RESIDENTIAL OCCUPANCIES APPLICATION CHECKLIST—continued — 2025 California Green Building Standards Code
California Green Building Standards Code (Title 24, Part 11) · 2025 edition · updated 2026-10-19 · California
Cite as: 2025 California Green Building Standards Code (Title 24, Part 11) § A4.602 · Effective January 1, 2026 · Official source: Building Standards Commission
| FEATURE OR MEASURE | LEVELS APPLICANT TO SELECT ELECTIVE MEASURES |
VERIFICATIONS ENFORCING AGENCY TO SPECIFY VERIFICATION METHOD |
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|---|---|---|---|---|---|---|
| FEATURE OR MEASURE | Mandatory | Prerequisites and electives1 | Prerequisites and electives1 | Enforcing Agency All |
Installer or Designer All |
Third party All |
| FEATURE OR MEASURE | Mandatory | Tier 1 |
Tier 2 |
Tier 2 |
Tier 2 |
Tier 2 |
| A4.106.1 Reserved | ~~~~ | ~~~~ | ~~~~ | ~~~~ | ~~~~ | |
| A4.106.2.1Soil analysis is performed by a licensed design professional and the findings utilized in the structural design of the building. |
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| A4.106.2.2Soil disturbance and erosion are minimized by at least one of the following: 1. Natural drainage patterns are evaluated and erosion controls are implemented to minimize erosion during construction and after occupancy. 2. Site access is accomplished by minimizing the amount of cut and fill needed to install access roads and driveways. 3. Underground construction activities are coordinated to utilize the same trench, minimize the amount of time the disturbed soil is exposed and the soil is replaced using accepted compaction methods. |
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| A4.106.2.3 Topsoil shall be protected or saved for reuse as specified in this section. **Tier 1.**Displaced topsoil shall be stockpiled for reuse in a designated area and covered or protected from erosion. **Tier 2.**The construction area shall be identified and delineated by fencing or flagging to limit construction activity to the construction area. |
2 | 2 2 |
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| A4.106.3Postconstruction landscape designs accomplish one or more of the following: 1. Areas disrupted during construction are restored to be consistent with native vegetation species and patterns. 2. Utilize at least 75 percent native California or drought tolerant plant and tree species appropriate for the climate zone region. |
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| A4.106.4Permeable paving is utilized for the parking, walking or patio surfaces in compliance with the following: Tier 1. Not less than 20 percent of the total parking, walking or patio surfaces shall be permeable. Tier 2. Not less than 30 percent of the total parking, walking or patio surfaces shall be permeable. |
2 | 2 | ||||
| A4.106.5Roofing materials shall have a minimum 3-year aged solar reflectance and thermal emittance or a minimum Solar Reflectance Index (SRI) equal to or greater than the values specified in the applicable tables. Low-rise Residential Tier 1 roof covering shall meet or exceed the values contained in Table A4.106.5.1(1). Tier 2 roof covering shall meet or exceed the values contained in Table A4.106.5.1(2). High-rise Residential, Hotels and Motels Tier 1 roof covering shall meet or exceed the values contained in Table A4.106.5.1(3). Tier 2 roof covering shall meet or exceed the values contained in Table A4.106.5.1(4). |
2 2 |
2 2 |
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| A4.106.6 Install a vegetated roof for at least 50 percent of the roof area. Vegetated roofs shall comply with requirements for roof gardens and landscaped roofs in the_California Building Code_, Chapters 15 and 16. |
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| A4.106.7 Reduce nonroof heat islands for 50 percent of sidewalks, patios, driveways or other paved areas by using one or more of the methods listed. |
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| A4.106.8.1 Tier 1 and Tier 2 for one- and two-family dwellings and townhouses with attached private garages. Install a dedicated 208/240-volt branch circuit, including an overcurrent protective device rated at 40 amperes minimum per dwelling unit. |
2 | 2 |
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