Division 3D.11 — ROOF DESIGN

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City of Los Angeles Zoning Code Chapter 1A

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Roof form is defined as the shape of the external upper covering of a building, including the frame for supporting the roofing.

A. Intent

The intent of the standards of this Section (Roof Design) is to ensure that building forms contribute

to the established architectural character of surrounding neighborhoods or districts.

B. Applicability

1. Roof form standards apply to new construction, a major remodel, or an exterior modifcationi

when the applied Character Frontage District (Div. 3B.9.) requires a primary roof form on any

frontage lot line-facing buildings.

2. A minimum of 70 percent of the total roof area of each applicable building or structure shall

meet roof form standards, measured horizontally.

C. Standards

1. General

All building and structures shall have a roof form listed as a roof form option in the applied

Frontage District (Part 3B.) .

2. Roof Form Options

a. Flat

A roof with a maximum pitch of 2:12 (two inch of vertical rise for every 12 inches of

horizontal span) or less. Flat roof forms include roofs with parapets up to six feet in height.

D. Measurement

1. Roof pitch is measured by calculating a roof's vertical rise in inches divided by a foot of its

horizontal span and is represented as a ratio.

2. Roof form is measured as compliant or non-compliant based on whether it meets the

standards and definition of one of the roof form options allowed by the applied Frontage

District (Part 3B.) .

E. Relief

1. Up to a 10 percent reduction in the total required roof area having an allowed roof form may

be granted in accordance with Sec. 13B.5.2. (Adjustment) .

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Sec. 3D.11.1. (Roof Form) Established by Ord. 188,418, Eff. 01/20/2025, Oper. 01/27/2025

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[ FORM - FRONTAGE - STANDARDS ] [ USE - DENSITY ] Div. 3D.11. (Roof Design)

City of Los Angeles Zoning Code Chapter 1A

2. A deviation from roof form dimensional standard up to 10 percent may be granted in

accordance with Sec. 13B.5.2. (Adjustment) .

3. Deviation from any roof form standard may be granted as a variance in accordance with Sec.

13B.5.3. (Variance) .

Sec. 3D.11.1. (Roof Form) Established by Ord. 188,418, Eff. 01/20/2025, Oper. 01/27/2025

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[ FORM - FRONTAGE - STANDARDS ] [ USE - DENSITY ] Div. 3D.11. (Roof Design)

A. Intent

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City of Los Angeles Zoning Code Chapter 1A

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The intent of the standards of this Section (Roof Materials) is to ensure that a building's roof finishing materials contribute to the established architectural character of surrounding

neighborhoods or districts.

B. Applicability

This Section (Roof Materials) applies to new construction, a major remodel, or an exterior

modifcationi . When roof materials standards apply, the standards apply to all portions of a required

primary roof form pursuant to Sec. 3D.11.1. (Roof Form) on any frontage lot line-facing buildings

on a lot.

C. Standards

Only roof materials specified by the applied Frontage District (Part 3B.) shall be used to finish an

applicable roof.

D. Measurement

Roof materials are measured as compliant or non-compliant based on whether all applicable roofs

meet the roof materials standards.

E. Exceptions

Roof material standards do not apply to accessory roof forms.

F. Relief

1. Up to a 10 percent reduction in the total required roof area finished of an allowed roof material

may be granted in accordance with Sec. 13B.5.2. (Adjustment) .

2. Deviation from roof materials standards may be granted as a variance in accordance with Sec.

13B.5.3. (Variance) .

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Sec. 3D.11.2. (Roof Materials) Established by Ord. 188,418, Eff. 01/20/2025, Oper. 01/27/2025

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