How Much Can a Storage Unit Raise Rent in California?

California places no cap on how much a self-storage facility can raise your rent. The state does not limit the dollar amount or the percentage of an increase, and a facility can raise your rate as often as your rental agreement allows, so long as it gives you at least 30 days’ written notice first. The one exception is during a declared state of emergency, when price-gouging law caps increases at 10 percent. Starting January 1, 2026, new rental agreements must also disclose the maximum rent you could be charged during your first year, but that disclosure rule still does not put a ceiling on the increase itself.

No Legal Cap on the Increase

The California Self-Service Storage Facility Act governs your relationship with a storage facility, and it says nothing about how large a rent increase can be or how often one can happen.¹ A facility could bump your monthly rate by $20 or by $200, and neither figure would violate state law. The only practical limit is what the local market will support.

This surprises renters who know California’s residential rent rules. The Tenant Protection Act caps annual increases on most homes and apartments at 5 percent plus the local cost-of-living change, or 10 percent, whichever is lower.² That law applies to dwellings intended for human habitation. Storage units are commercial space, so none of those protections carry over. Your leverage against an aggressive increase comes from the market and your willingness to move, not from a statute.

The 30-Day Written Notice Requirement

While there is no cap on the amount, a facility cannot spring an increase on you without warning. California law requires at least 30 days’ written notice before raising the rent or changing any other term of your rental agreement.¹ Your agreement may specify a longer window, but the facility can never go below 30 days.

One detail catches many renters off guard. If you keep using your unit after the new rate takes effect, the law treats that as acceptance of the new terms. You do not have to sign anything or say yes out loud. Simply continuing to store your belongings past the effective date means you have accepted the higher rent. The 30-day notice window is your real decision period. Once the clock runs out, the new rate applies automatically.

The 10 Percent Cap During Declared Emergencies

The one situation where California does cap storage rent increases is during a declared state of emergency. Under Penal Code Section 396, once the Governor, President, or a local official declares an emergency, storage facilities cannot raise prices by more than 10 percent above what they charged immediately before the declaration. The restriction lasts for 30 days following the proclamation.³

The statute explicitly names “storage services” as a covered category and defines the term to include any company that contracts to store personal or business property.³ A facility can exceed the 10 percent ceiling only if it proves the increase was directly caused by higher costs from its own suppliers or by additional labor and material expenses tied to the emergency. Even then, the price cannot go more than 10 percent above those increased costs plus the facility’s usual markup.

Violating this law is a misdemeanor punishable by up to one year in county jail, a fine of up to $10,000, or both. It also qualifies as an unfair business practice, which opens the door to civil enforcement by the Attorney General or a private lawsuit.³

New Disclosure Rules for Agreements Signed in 2026

Governor Newsom signed SB 709 into law in October 2025. For any rental agreement entered into on or after January 1, 2026, the law adds new disclosure requirements. It still does not cap increases, but it forces facilities to tell you upfront what could happen to your rate.⁴

Under the new Section 21715.2 of the Business and Professions Code, the first page of your rental agreement must disclose:

Whether you are on a month-to-month agreement or a longer term, and how renewals work.
Whether the rate you are signing up for is a promotional or discounted price, and how long that lower rate will last.
The maximum rent the facility could charge you during the 12 months after you sign.

These disclosures must appear in larger or contrasting type that stands out from the rest of the agreement.⁴ Before SB 709, you could sign a lease at $99 per month and discover three months later that the promotional rate was jumping to $189. Now the facility has to show you that $189 number before you sign. If your current agreement predates January 1, 2026, these rules do not apply to it retroactively.

Your Options When You Get a Rent Increase Notice

When a notice arrives, you realistically have three paths.

The simplest is to accept the new rate and keep paying. No action is needed. Just pay the higher amount by the effective date. Staying in the unit past that date locks you into the new terms whether or not you meant to agree.

Your second option is to negotiate. This works best when you have been renting for a while and paying on time. Facilities deal with constant turnover, and keeping a reliable tenant at a slightly lower rate is often better for their bottom line than re-listing an empty unit. Ask the manager directly whether there is room to reduce the increase or phase it in. Worst case, they say no.

Your third option is to leave. If the new rate does not make sense for what you are storing, give the facility written notice that you are terminating and move your belongings out before the increase takes effect. Compare the increase against current market rates at nearby facilities. The same size unit across town might cost less, especially if competitors are running promotional pricing. Watch for those promotional rates that jump after a few months, which is exactly the pattern the new SB 709 disclosure rules are designed to make visible.

What Happens If You Ignore the New Rate

Ignoring a rent increase is the worst option. Silence plus continued use counts as acceptance of the higher rate. Silence plus non-payment starts a lien process that can end with your property being sold.

Once your rent or other charges go unpaid for 14 consecutive days, the facility can send you a preliminary lien notice terminating your right to the space.⁵ If you still do not pay by the date specified, the lien formally attaches, and the facility gains the right to deny you access, enter the unit, and remove your property to a secure location.⁶

After locking you out, the facility must send a notice of lien sale by certified mail, or first-class mail with a certificate of mailing, to your last known address. That notice states the current lien amount, warns it will keep growing, and gives you at least 14 more days to pay in full before your property is sold. It must include a blank declaration form you can return to formally oppose the sale, for example if you believe you already paid what you owe.⁶ At any point before the auction, you can stop the process by paying the full amount. After the sale, any proceeds above what you owed are held for one year for you to claim; after that, the money goes to the county treasury.

The bottom line: the size of the increase is not capped, but your response time is. Thirty days from the notice, you either pay, negotiate, or move.

1
California Senate Judiciary Committee. SB 709 (Menjivar) – Self-Service Storage Facilities: Rental Rates
2
California Legislative Information. California Civil Code 1947.12
3
California Legislative Information. California Penal Code 396
4
California Legislative Information. SB 709 Self-Service Storage Facilities: Rental Rates
5
California Legislative Information. California Business and Professions Code BPC 21712
6
California Legislative Information. California Business and Professions Code BPC 21705