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Santa Clarita, CA Building Safety: Building Permits (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

Shed/gazebo exemption
Up to 120 sq ft, 14 ft tall
Fence exemption
Wood/vinyl 6 ft, chain link 12 ft
Application expires
12 months if no permit issued
Extension length
Up to 180 days per request
Unpermitted work fee
2x the normal permit fee
Violation penalty
Up to $1,000 fine, 6 months jail

Summary

Santa Clarita requires a building permit for nearly all construction, alteration, or repair work under Building Code Section 105.2, with a defined list of exempt minor projects. A tool shed under 120 square feet, a 6-foot wood fence, or a 4-foot retaining wall can skip the permit; everything else, including additions, electrical work tied to a structure, and swimming pools, needs Building and Safety approval first.

105.2 Work Exempted from Permit. Exemptions from the permit requirements of this code shall not be deemed to grant authorization for any work to be done in any manner in violation of the provisions of this code or any other laws or ordinances of the City of Santa Clarita including such requirements as may be established by any city department or division or the requirements of any other governing agency. Unless otherwise exempted, separate plumbing, electrical, and mechanical permits will be required for any such items exempted herein. Permits shall not be required for the following: Building: 1. One-story detached light-framed structures accessory to a Group R-3 or U occupancy used as tool and storage sheds, playhouses, trellis structures, gazebos, arbors, greenhouses and similar uses where the gross floor area does not exceed 120 square feet as measured to the outside walls or support posts and the structure complies with all of the following conditions: a. The floor is not more than 30 inches above the adjoining grade, b. The overall height is not more than 14 feet as measured from adjacent grade, c. The structure is not constructed on a slope steeper than 3:1.

Full Breakdown

2 of the City Building Code, added by Ordinance 25-5 effective for permit applications filed on or after January 1, 2026, states that exemptions from the permit requirement do not authorize work that otherwise violates the code or city ordinances, and that separate plumbing, electrical, and mechanical permits are still required for exempted items unless the code says otherwise. The exemption list covers roughly 28 categories of minor building work plus separate electrical and mechanical exemptions. A detached shed, playhouse, gazebo, or greenhouse skips a permit only if it is 120 square feet or less, sits no more than 30 inches above grade, tops out at 14 feet, avoids slopes steeper than 3:1, sits outside a flood zone, has no permanent heating or air conditioning, and is sited where the Planning Division allows it.

Chain link or wire fences up to 12 feet, and wood, vinyl, or open wrought iron fences up to 6 feet, are also exempt, as are block walls or pilasters up to 42 inches, unless they sit in a flood hazard area or serve as a swimming pool barrier. 2 gives it 12 months to result in an issued permit before it expires; the Building Official can grant extensions of up to 180 days each on written request with justifiable cause and payment of an administrative fee.

3 caps the reactivation fee at 50 percent of the original permit fee. 8 allows the Building Official to combine building, electrical, plumbing, and mechanical work into a single combined permit for a new single-family home or a swimming pool package covering excavation, decking, and equipment.

Violations & Fines

Starting work before the permit is issued triggers an unpermitted construction fee under Section 109.4 equal to double the normal permit fee, regardless of whether a permit is later obtained; the Building Official can adjust that amount based on the scope of the unpermitted work. Section 114.4 makes any code violation a misdemeanor punishable by a fine up to $1,000, up to six months in jail, or both, with each day of a continuing violation charged as a separate offense, plus administrative citations under Title 23.

Frequently Asked Questions

Do I need a permit to build a shed in Santa Clarita?
Only if it exceeds 120 square feet or breaks one of the conditions in Building Code Section 105.2. A shed at or under that size, no more than 30 inches off grade, 14 feet tall, outside a flood zone, with no permanent heating or air conditioning, and sited where Planning approves, skips the permit; anything larger needs one.
What happens if I start construction without a permit?
Section 109.4 charges an unpermitted construction fee equal to double the standard permit fee before the city will issue one, on top of the permit fee itself. Continuing work without permits is also a misdemeanor under Section 114.4, punishable by up to a $1,000 fine or six months in jail, with each day counted as a separate offense.
How long does a Santa Clarita building permit application stay valid?
Twelve months from the date of application under Section 105.3.2. If no permit is issued in that time the application expires and the plans can be returned or destroyed, though the Building Official can grant one or more 180-day extensions for justifiable cause and payment of an administrative fee.
Can I reactivate an expired Santa Clarita building permit?
Yes, if the work was suspended for no more than two years. Section 105.5.2 lets the Building Official approve reactivation on written request, and Section 105.5.3 caps the reactivation fee at 50 percent of the original permit fee, with an added administrative fee for any later extension.

Sources & Official References

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