Window / Door Permit Requirements in Union City, CA

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Population: 70,143 Code: 2022 Verified: 2026-04-10 3 local rules

When you DON'T need a permit

Same-size exterior window/door replacements generally do not require a permit in Oakland, CA.

Source: Union City Municipal Code / California Building Code (CBC Title 24)

Interior door replacements do not require a permit in Oakland, CA.

Source: Union City Municipal Code / California Building Code (CBC Title 24)

When you DO need a permit

Changing exterior opening sizes requires a building permit in Oakland, CA.

Estimated fee: $130 – $510

Typical timeline: About 3 weeks

Source: Union City Municipal Code / California Building Code (CBC Title 24)

Window / Door Permit Costs: Union City vs. Nearby

Union City's fees are right in line with the California average — $130 – $510 versus $127 – $500 statewide.

Zoning & HOA Considerations

HOA Communities

If you live in an HOA community: hOAs in some communities regulate exterior window styles, frame colors, and door designs. Changing window types or adding new openings may require architectural review approval.

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Building Department Contact

NameBuilding Division
Address34009 Alvarado-Niles Road, Union City, CA 94587
HoursMon-Thu 9am-5pm; alt Fri 9am-12pm

Frequently Asked Questions

Estimated permit fees for Window / Door projects in Union City, CA range from $130 – $510. Fees vary based on project scope and valuation.

It depends on the specifics of your project. Some smaller Window / Door projects may be exempt from permit requirements, while larger ones typically require a permit. Use our free lookup tool to check your specific situation.

Working without a required permit in Union City can result in fines, stop-work orders, being required to remove completed work, and complications when selling your home. It's always best to check first.

Typical approval time for Window / Door permits in Union City is About 3 weeks. More complex projects may take longer if plan review is required.

If you live in an HOA community, you may need architectural review approval in addition to a building permit. HOA rules and city building codes are separate — you may need to satisfy both. Review your CC&Rs and submit to your HOA's architectural review committee before starting work.

Learn More About Window / Door Permits

Read our complete guide covering permit requirements, costs, common exemptions, and the application process.

Read Window / Door Guide →

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Disclaimer: This information was last verified on 2026-04-10. Building permit requirements may change. Zoning requirements (setbacks, lot coverage, height limits) are separate and vary by location. Always confirm with your local building and planning departments before starting your project. PermitMint provides general guidance, not legal advice.