Gardena, CA Rental Property Rules: Rent Increase Notice (2026)
Key Facts
- Notice for <=10% increase
- At least 30 days
- Notice for >10% increase
- At least 90 days
- Mobile home park notice
- At least 90 days, any amount
- Mediation-rights notice trigger
- Increases over 5 percent
- Tenant petition window
- 10 business days (25 for mobile home)
- Mailed notice effective
- 5 days after mailing (2 for Express Mail)
Summary
In the City of Gardena, landlords must give tenants written notice before raising rent: at least 30 days for an increase of 10 percent or less, and at least 90 days for a larger increase, under Gardena Municipal Code § 14.04.090. Mobile home park owners must give 90 days' notice regardless of the increase size.
§ 14.04.090. Notification of rent increases. A. An owner shall provide written notice to tenants of an increase of ten percent or less of the rent charged during the twelve months prior to the effective date of the increase at least thirty days prior to the effective date of the increase. B. If the proposed rent increase is greater than the amount described in subsection A of this section, the owner shall provide written notice of the increase to tenants at least ninety days prior to the effective date of the increase. ... ... D. Notice of any rent increase exceeding five percent of the rent charged during the twelve months prior to the effective date of the increase shall include a notice to the tenant, including a mobile home homeowner, of the right to mediation/hearing and that the tenant has ten business days following service of the notice, or twenty-five business days for a mobile home homeowner, to file a mediation petition in order to exercise the tenant's rights under this chapter.
Full Breakdown
Section 14.04.090 sets tiered notice periods based on the size of the increase measured against the rent charged over the prior 12 months. A 10 percent or smaller increase requires at least 30 days' written notice before the increase takes effect (subsection A); anything larger requires at least 90 days' notice (subsection B). Mobile home park management must give homeowners at least 90 days' notice of any rent increase, regardless of amount (subsection C). Any notice of an increase over 5 percent must also tell the tenant of the right to request mediation or a hearing before the Rent Mediation Board, and must state that the tenant has 10 business days after service, or 25 business days for a mobile home homeowner, to file a mediation petition (subsection D); mailed notice is effective five days after mailing, or two days for Express Mail, under Code of Civil Procedure § 1013.
A mobile home homeowner's right to a hearing follows California Civil Code § 798.14's 25-business-day filing window, and does not apply if the increase is less than half the percentage change in the regional Consumer Price Index over the preceding 90 days (subsection E).
Violations & Fines
An owner who serves a rent increase notice without the correct 30 or 90-day lead time, or without the required mediation-rights language for increases over 5 percent, has not properly triggered the increase; a tenant can petition the Rent Mediation Board, and if the landlord fails to appear at the resulting hearing, § 14.04.100(F) voids the increase and forces the landlord to reissue a compliant notice under § 14.04.090 before trying again.
Frequently Asked Questions
How much notice must a Gardena landlord give before raising rent 10 percent or less?
What notice period applies to a rent increase over 10 percent in Gardena?
Does a Gardena rent increase notice have to mention the right to mediation?
Sources & Official References
Other rules in Gardena
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