Section R300
California Residential Code (Title 24, Part 2.5) · 2019 edition · updated 2026-09-12 · California
Italicized text is a California amendment to the model code, as printed in the official publication.
R300.1 Storm water drainage and retention during con-struction.¶
struction. 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, Divi- sion 4.1.
R300.2 Grading and paving.¶
Construction plans shall indi- cate 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.
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Ask AI about this code▸Contents — California Residential Code (Title 24, Part 2.5)
- Chapter 2 — DEFINITIONS AND ABBREVIATIONS
- Chapter 1 — SCOPE AND APPLICATION
▸Chapter 3 — BUILDING PLANNING
Overview- Section R300
- Section R301
- Section R302
- Section R303
- Section R304
- Section R305
- Section R306
- Section R307
- Section R308
- Section R309
- Section R310
- Section R311
- Section R312
- Section R313
- Section R314
- Section R315
- Section R316
- Section R317
- Section R318
- Section R319
- Section R320
- Section R321
- Section R322
- Section R323
- Section 324
- Section R325
- Section R334
- Section R335
- Section R326
- Section R327
- Section R336
- Section R337
- Section R337.1
- Section R337.2
- Section R337.3
- Section R337.4
- Section R337.5
- Section R337.6
- Section R337.7
- Section R337.8
- Section R337.9
- Section R337.10
- Section R340
- Section R338
- Chapter 4 — FOUNDATIONS
- Chapter 5 — FLOORS
- Chapter 6 — WALL CONSTRUCTION
- Chapter 7 — WALL COVERING
- Chapter 8 — ROOF-CEILING CONSTRUCTION
- Chapter 9 — ROOF ASSEMBLIES
- Chapter 10 — CHIMNEYS AND FIREPLACES
- Chapter 44 — REFERENCED STANDARDS
- Appendix F — RADON CONTROL METHODS
- Appendix H — PATIO COVERS
- Appendix I — PRIVATE SEWAGE DISPOSAL
- Appendix J — EXISTING BUILDINGS AND STRUCTURES
- Appendix K — SOUND TRANSMISSION
- Appendix L — PERMIT FEES
- Appendix O — AUTOMATIC VEHICULAR GATES
- Appendix Q — TINY HOUSES
- Appendix R — LIGHT STRAW-CLAY CONSTRUCTION
- Appendix S — STRAWBALE CONSTRUCTION
- Appendix T — SOLAR-READY PROVISIONS—DETACHED ONE- AND
- Appendix V — SWIMMING POOL SAFETY ACT
- Appendix W — AREAS PROTECTED BY THE FACILITIES
- Appendix X — EMERGENCY HOUSING