Merced County, CA Building Safety: Building Permits (2026)
Key Facts
- Permit scope
- Required for structural, plumbing, electrical, mechanical work
- Exempt shed
- One per dwelling, <=120 sq ft, <=12 ft tall
- Exempt fences/walls
- Fences to 6 ft, walls to 4 ft
- Owner work
- No contractor license needed on owner-occupied homes
- Unpermitted work fee
- 1x to 5x the normal permit fee
Summary
Merced County requires a separate permit before anyone erects, alters, repairs, moves, or demolishes a building or structure in the unincorporated county, with its own permit for structural, plumbing, electrical, and mechanical work.
No person, firm, or corporation shall erect, construct, enlarge, alter, repair, move, improve, remove, convert or demolish any building or structure subject to the provisions of this title, or cause the same to be done, without first obtaining a separate permit for each building or structure from the building official. Permits for each building or structure are required for structural, plumbing, electrical and mechanical work as provided in this title. ... A separate permit shall be required for each structure or building except that a private, attached garage on the lot with a residence may be included in the permit for the residence. A separate structure or building shall be defined as a structure covered by one roof.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: rev 4930839; v8 updated 2026-06-02).
Full Breakdown
070(A) makes it unlawful for anyone to erect, construct, enlarge, alter, repair, move, improve, remove, convert, or demolish a building or structure in the unincorporated county without first obtaining a separate permit from the building official, the deputy director of buildings within the Community and Economic Development Department. The section requires its own permit for structural, plumbing, electrical, and mechanical work, and generally for each building or structure, though a private attached garage sharing a lot with a residence can ride on the residence's permit; a 'separate structure' is defined as one covered by its own roof.
The application process runs through Chapter 1, Division II, Part 2 of the 2022 California Building Standards Code, which the county incorporates by reference with local amendments. 110 exempts detached, single-story storage sheds up to 120 square feet and 12 feet tall with no electrical or plumbing (one per dwelling), roadside stands for seasonal farm products under 200 square feet, wood or steel fences up to six feet, residential block/stucco/concrete walls up to four feet, and retaining walls up to two feet. 040 also drops any contractor-licensing requirement for work on single-family owner-occupied homes, as long as the finished work still meets the title's technical standards.
070(D), the county will not issue a building permit, certificate of occupancy, or other clearance for a parcel already cited for a Title 16 violation unless the new permit corrects that violation.
Violations & Fines
Building without the required permit triggers both a misdemeanor penalty under § 16.12.030, up to $1,000 and six months in jail, or graduated infractions of $100, $200, and $500, and a separate investigation fee under the amended California Building Code § 109.4 (§16.16.020(B)): one times the normal permit fee for a first unpermitted start, doubling for a second occurrence within five years, and up to five times the fee for a fifth or later occurrence, charged whether or not a permit is later issued.
Frequently Asked Questions
Does Merced County require a permit to build a shed or fence?
Can I do my own electrical or plumbing work on my house?
What happens if I build without a Merced County permit?
Sources & Official References
Other rules in Merced County
California rules heatmap·Compare Merced County to another location·View the California building safety overview
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