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Simi Valley · Building on your lot

Fences and walls in Simi Valley

In residential zones, front-setback fences are limited to 42 inches, or 6 feet if see-through; other property line fences, 6 feet.

Key points

  • Fence height: In residential zones, front-setback fences are limited to 42 inches, or 6 feet if see-through; other property line fences, 6 feet.

Each rule below links to the section of the Simi Valley Municipal Code it was read from, with the code text one click away (checked October 2026). General information, not legal advice.

What Simi Valley's code says

Simi Valley code What Simi Valley's code adds
Corner visibility
  • No fence, wall or hedge over 24 inches without an encroachment permit.
    Applies: In the traffic safety sight area within the public right-of-way; height from the top of the nearest curb, or street level.
    § 9-30.050 · code text
    Within the TSSA, as defined in Article 8 (Definitions), and within the public right-of-way, no fences, walls, or hedges over 24 inches high measured from the top of the nearest street curb (street level, if no curb) are allowable without a permit authorized by law (encroachment permit).
  • No fence, wall or hedge over 36 inches without a permit allowed by law.
    Applies: In the traffic safety sight area on private property; height from the top of the nearest curb, or street level.
    § 9-30.050 · code text
    Within the TSSA and located on private property, no fences, walls, or hedges over 36 inches high measured from the top of the nearest street curb (street level, if no curb) are allowable without a permit authorized by law.
Front yard height
  • Fences, walls and hedges can be at most 42 inches tall.
    Applies: Front yard setback in residential zones, outside the traffic safety sight area.
    § 9-30.050 · code text
    Within the front yard setback, no fence, wall, or hedge shall exceed 42 inches in height and no see-through fence shall exceed six (6) feet in height.
  • See-through fences can be at most 6 feet tall.
    Applies: Front yard setback in residential zones, outside the traffic safety sight area.
    § 9-30.050 · code text
    Within the front yard setback, no fence, wall, or hedge shall exceed 42 inches in height and no see-through fence shall exceed six (6) feet in height.
  • A combined fence can be at most 6 feet tall in total.
    Applies: Residential front setback outside the sight area; solid part at most 42 inches, rest see-through; Planning Director approves the design.
    § 9-30.050 · code text
    A combination of fence, wall, or hedge and see-through fence shall be permitted, said design subject to approval by the Planning Director, in which the solid fence, wall, or hedge does not exceed 42 inches and the total height, including see-through fence, does not exceed six (6) feet in height.
  • Retaining walls can be at most 36 inches tall.
    Applies: Front or street-facing side setback in residential zones, outside the traffic safety sight area.
    § 9-30.050 · code text
    Retaining walls within the front or street facing side setback may not exceed 36 inches in height.
Side and rear yard height
  • A solid landscaped hedge can be up to 6 feet tall.
    Applies: At the side property line, at least 10 feet back from the front property line, outside the sight area, in residential zones.
    § 9-30.050 · code text
    However, a maximum six (6)-foot high solid landscaped hedge may be permitted at the side property line with a setback not less than 10 feet from the front property line.
  • Property line fences and walls can be at most 6 feet tall, from the highest adjacent grade.
    Applies: Outside the front setback and the traffic safety sight area in residential zones, unless allowed by law.
    § 9-30.050 · code text
    Property line fences and walls outside of the front setback, may not exceed six feet in height as measured from the highest adjacent grade, unless authorized by law.
  • Side or rear fences, walls or hedges can be up to 2 feet taller.
    Applies: Residential properties next to arterial streets, or next to commercial or industrial zoned property.
    § 9-30.050 · code text
    The height of a rear or side residential fence(s), wall(s), or hedge(s) may be increased for up to two additional feet for properties abutting arterial street(s) or a residentially zoned property adjacent to a commercially or industrially zoned property.
Permit
  • Yes. An encroachment permit is required for fences, walls or hedges over 24 inches.
    Applies: In the traffic safety sight area within the public right-of-way.
    § 9-30.050 · code text
    no fences, walls, or hedges over 24 inches high measured from the top of the nearest street curb (street level, if no curb) are allowable without a permit authorized by law (encroachment permit).
  • Yes. Fences, walls or hedges over 36 inches need a permit allowed by law.
    Applies: In the traffic safety sight area on private property.
    § 9-30.050 · code text
    no fences, walls, or hedges over 36 inches high measured from the top of the nearest street curb (street level, if no curb) are allowable without a permit authorized by law.
  • Yes. A Zoning Clearance, plus an Encroachment Permit if a new driveway approach is needed.
    Applies: Vehicle gates.
    § 9-30.050 · code text
    A Zoning Clearance and Encroachment Permit (if a new driveway approach is required) must be obtained;

Who this affects

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Frequently asked questions

How tall can a fence be in Simi Valley?

In residential zones, front-setback fences are limited to 42 inches, or 6 feet if see-through; other property line fences, 6 feet.

General information, not legal advice.

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