Rolling Hills enforces 2025 CBC, T24 Pt 2 based on 2024 IBC with 2 local amendments on top (Urgency Ord. 389-U (regular twin Ord. 389 second reading set 2026-01-12)). The amendments are the part that gets sets corrected. The state edition is only the floor. Rolling Hills sits in Los Angeles County.
Current edition
2025 Title 24
Prior edition
2022 Title 24
Edition changeover: Projects with a complete application on or before 2025-12-31 may still be reviewed under the 2022 Title 24.
Adopted code and local amendments by discipline
Adopted code editions and local amendments by discipline
Discipline
Adopted code
Local amendment
Building
2025 CBC, T24 Pt 2 based on 2024 IBC
Rolling Hills local amendments, Urgency Ord. 389-U (regular twin Ord. 389 second reading set 2026-01-12)Local text supersedes the state code
Residential
2025 CRC, T24 Pt 2.5 based on 2024 IRC
n/a
Existing buildings
2025 CEBC, T24 Pt 10 based on 2024 IEBC
n/a
Fire
2025 CFC, T24 Pt 9 based on 2024 IFC
n/a
Electrical
2025 CEC, T24 Pt 3 based on 2023 NEC
n/a
Mechanical
2025 CMC, T24 Pt 4 based on 2024 UMC
n/a
Plumbing
2025 CPC, T24 Pt 5 based on 2024 UPC
n/a
Energy
2025 Energy Code, T24 Pt 6
n/a
Green / sustainability
2025 CALGreen, T24 Pt 11
n/a
Accessibility
2025 CBC Ch 11A/11B, T24 Pt 2
n/a
Wildland-urban interface
2025 CA-WUIC, T24 Pt 7 based on 2024 IWUIC
n/a
Historical buildings
2025 CHBC, T24 Pt 8
n/a
Administrative
2025 CAC, T24 Pt 1
n/a
Zoning
No state-adopted code
Local zoning ordinance (city or county), subject to state preemptionLocal text supersedes the state code
What Rolling Hills actually amended
Quoted from the adopted ordinance. These are the provisions that differ from the state code, which is where most correction lists come from. Excerpts, not the whole ordinance. Follow the source link for the full text.
105.8 · Review hearing. The City Council of the City of Rolling Hills may
105.8 Review hearing. The City Council of the City of Rolling Hills may
conduct a public hearing to review any decision or order of the Board of
Appeals, the Code Enforcement Appeals Board, or the Building
Rehabilitation Appeals Board upon an affirmative vote of three members of
the City Council within thirty (30) calendar days of the decision or order. The
City Council may, upon conclusion of the public hearing, sustain or reverse
in whole or in part any said action or order. […]
J106.3 · Balanced cut and fill ratio
J106.3 Balanced cut and fill ratio.
Adherence to balanced cut and fill ratio is an important policy of the City
and furthers the goals and objectives of its General Plan, except that export
of soil generated from construction of basements and other excavation
activities, promotes the preservation of natural terrain of the property. A
project, which does not include excavation, may deviate from balanced cut
and fill only under unusual circumstances related to the size, shape,
topography or other physical conditions of the property that qualify it for a
variance pursuant to Municipal Code Section 17.38.050.
1. […]
J107.10 · Balanced cut and fill ratio
J107.10 Balanced cut and fill ratio.
Adherence to balanced cut and fill ratio is an important policy of the City
and furthers the goals and objectives of its General Plan, except that export
of soil generated from construction of basements and other excavation
activities, promotes the preservation of natural terrain of the property. A
project, which does not include excavation, may deviate from balanced cut
and fill only under unusual circumstances related to the size, shape,
topography or other physical conditions of the property that qualify it for a
variance pursuant to Municipal Code Section 17.38.050.
Page 8 of 27
Ordinance No. 389-U Building Code Ordinance 2025
1. […]
Mapped hazard and district overlays stack on top of the adopted code. These are the overlays recorded for Los Angeles County. They apply by parcel, not jurisdiction-wide, so confirm the parcel before assuming one is in play. Check CAL FIRE's fire hazard severity viewer and FEMA's flood map service.
Very High Fire Hazard Severity Zone
FEMA mapped flood hazard area
State law that overrides local zoning here
When one of these applies, the state statute governs over a conflicting local standard. This is the most common reason a local rule someone quotes you turns out not to be enforceable against a project.
Gov. Code 66310 et seq.
State ADU law preempts local zoning that would preclude a conforming ADU/JADU.
Applies when: project includes an ADU or JADU
Gov. Code 65915
State Density Bonus Law concessions/waivers override local development standards.
Applies when: project requests a density bonus
Gov. Code 65852.21 / 66411.7
SB 9 urban lot split / two-unit ministerial approval preempts conflicting local standards.
Applies when: project is an SB 9 lot split or two-unit development
Rolling Hills enforces 2025 CBC, T24 Pt 2 based on 2024 IBC, the edition adopted statewide in California, amended locally in 2 disciplines (Urgency Ord. 389-U (regular twin Ord. 389 second reading set 2026-01-12)).
Does Rolling Hills amend the California code?
Yes: building, zoning. For building, the rule is: local text supersedes the state code.
Where do I confirm the code edition for a Rolling Hills permit?
With the city building department that will review the permit. Adoption ordinances are amended on a local schedule, and a set submitted days apart can fall under different editions during a changeover.
Knowing the adopted edition is the easy half. Architechtura reads your drawings, resolves which of these provisions actually apply to the project, and returns the corrections a plan checker would write up, each one cited to the section it came from.
Compiled from published state and municipal adoption ordinances. Local governments amend their codes on their own schedule, and a pending ordinance can change what applies to your permit. Confirm the governing edition with the building department before you submit. This page is reference information, not a code determination.