A large rent increase at the end of a lease can look straightforward: the lease is ending, the landlord proposes a new price, and the tenant must decide whether to sign or move. In San Francisco, however, the analysis usually has several separate parts. A condominium may be exempt from one rent limit while still covered by local eviction protections. A landlord may be able to propose a new one-year agreement without being able to physically force a signature. And a 90-day notice rule does not, by itself, tell you whether the amount of the increase is lawful.
Quick answer: A proposed increase from $3,650 plus $250 for parking to $4,600 including parking is about a 17.9% increase if the two packages are compared on the same basis. It is not automatically legal or illegal. First verify whether the unit is covered by San Francisco’s rent-limit rules, California’s Tenant Protection Act, or a valid condo exemption. For a covered San Francisco unit, the published annual allowable increase for March 1, 2026 through February 28, 2027 is 1.6%, although other authorized adjustments can have separate rules. If the proposed change is more than 10% of the prior rent, California generally requires at least 90 days’ written notice. A landlord cannot physically force a tenant to sign a new lease, but refusing a qualifying renewal request after a written demand may be treated as an at-fault just cause under California and San Francisco law. Whether a new one-year lease is “similar” to a month-to-month continuation is fact-specific.
Editorial note: This article uses an anonymized summary of user-provided material. It does not reproduce names, profiles or identifying details. It provides general information, not legal advice. Laws, exemptions and remedies depend on the property, ownership, lease wording, notices and tenancy history.
The scenario: a sharp increase at renewal time
Consider two roommates renting a two-bedroom, one-bathroom condominium in San Francisco’s Mission District. Their reported charges are:
- $3,650 per month in rent;
- $250 per month for parking;
- $3,900 per month in current combined charges; and
- a proposed $4,600 per month including parking.
The lease ends in about a month. The existing agreement reportedly says the tenancy can continue month-to-month, but the landlord wants the roommates to sign a new one-year lease.
The proposed package is $700 more per month than the current package. On that combined-cost comparison, the increase is approximately 17.95%. But the calculation is only a starting point. The legal question may use a different rent baseline, and the parking charge may be treated differently depending on the agreement and the applicable rule.
The most useful first step is to separate three questions:
- Is the amount limited? This depends on local rent limits, the California Tenant Protection Act and any valid exemption.
- What is the landlord actually offering? A unilateral rent increase, a new fixed-term agreement, or a month-to-month continuation with changed terms are not identical transactions.
- What happens if the tenant declines? The landlord cannot compel a signature, but refusal to sign a qualifying renewal can have just-cause consequences.
A condominium is not automatically outside San Francisco renter protections
“It is a condo” is not a complete legal classification. In San Francisco, rent limits and eviction protections are related but distinct.
| Protection or rule | What it controls | What to verify |
|---|---|---|
| San Francisco Chapter 37 rent limitations | Annual increases and certain additional increases for covered tenants in occupancy | Unit history, building facts, Rent Board reporting and any applicable Costa-Hawkins limitation |
| California Tenant Protection Act, Civil Code § 1947.12 | Statewide limits on covered gross-rent increases | Construction date, ownership, exemption notice and other statutory conditions |
| San Francisco just-cause eviction protections | Whether a landlord can recover possession and on what grounds | Whether the unit is covered by local eviction rules and what written notice was served |
| The lease and renewal provisions | Contractual term, rent, parking, notice and month-to-month language | The complete signed agreement and all addenda |
San Francisco’s official eviction guidance says that its eviction requirements apply to most residential properties, including condominiums and buildings built after 1979. The same guidance says a landlord cannot legally lock out a tenant, throw away possessions, shut off utilities or use harassment to remove a tenant.
That does not mean every condo receives the same rent-increase protection. A unit can be outside a local annual rent limit while still receiving local just-cause protection. Treat those as separate boxes to check.
Check the rent-limit status before calculating the increase
If San Francisco’s annual rent limits apply
San Francisco Administrative Code § 37.3 generally limits rent increases for covered tenants in occupancy. The City’s Rent Board publishes the annual allowable amount. For the period from March 1, 2026 through February 28, 2027, the published allowable annual increase is 1.6%.
That percentage is not necessarily the only possible change to a tenant’s housing cost. The ordinance includes rules for banked increases, certified capital improvements, operating and maintenance expenses, utilities and other passthroughs. A landlord seeking an increase above the ordinary annual amount may need to follow a petition or documentation process.
For a covered unit, a landlord generally cannot turn an annual rent limit into a blank check simply by waiting for a lease expiration or labeling the document a “new lease.” The tenant should compare the existing tenancy, the proposed renewal and the applicable local rules before signing.
If the unit may be covered by California’s Tenant Protection Act
California Civil Code § 1947.12 generally limits the gross rental rate increase over a 12-month period to 5% plus the applicable cost-of-living change or 10%, whichever is lower. It also limits how many increases can be imposed during a 12-month period when the same tenant remains in occupancy.
The statute includes an exemption for certain separately transferable homes and condominiums. But the exemption is conditional. Among other requirements, the owner must not be a real estate investment trust, a corporation or an LLC with at least one corporate member, and the tenant must receive the required written exemption notice. For a tenancy that began or was renewed on or after July 1, 2020, the notice generally must be in the rental agreement.
So a tenant should look for more than the word “condominium.” Check:
- whether the unit can be sold separately from other dwelling units;
- who owns it and how the ownership is structured;
- whether the lease contains the statutory exemption notice;
- whether the notice uses the required language;
- when the current tenancy began or was renewed; and
- whether another local or program-based rule applies.
If any part of the exemption is missing or unclear, do not assume that the state rent cap disappears. Ask the landlord or property manager to identify the claimed exemption in writing and have the documents reviewed locally.
If the unit is outside both annual rent limits
A unit may be outside San Francisco’s annual rent limitations and the state Tenant Protection Act’s cap. That can give the landlord more flexibility to negotiate a market-rate price at the end of a term. It still does not erase the lease, notice requirements, anti-retaliation rules or San Francisco’s eviction protections.
San Francisco Code § 37.10A also prohibits using a rent increase in bad faith to defraud, intimidate or coerce a tenant into leaving a unit that is exempt from rent-increase limitations, as a way to circumvent just-cause and related protections. A large increase is not automatically proof of bad faith, but the landlord’s communications, timing and stated purpose may matter.
The 20% figure is not the only number to inspect
The reported numbers produce two different-looking comparisons:
| Comparison | Calculation | Why it matters |
|---|---|---|
| Current combined package to proposed package | $3,900 to $4,600 = about 17.95% | Useful if both figures include the same parking arrangement |
| Base rent alone | $3,650 to an unknown new base amount | Cannot be calculated until the landlord separates rent from parking |
| Monthly dollar difference | $700 | Useful for budgeting and any relocation or hardship discussion |
San Francisco’s definition of “rent” is broad and includes money connected with use or occupancy, including parking, furnishing and housing services. That makes the parking line important, but it does not mean every charge is analyzed identically under every statute.
Ask for a written breakdown showing:
- base rent;
- parking rent or parking fee;
- utilities and other recurring charges;
- one-time fees, if any;
- the proposed effective date; and
- whether the $4,600 applies only if the tenant signs a new one-year agreement.
Do not accept a calculation based only on a headline number when the current and proposed packages include different services.
Can the landlord require a new one-year lease?
The landlord cannot physically force a tenant to sign. The more precise question is what legal consequence may follow if the tenant refuses a written renewal request.
California Civil Code § 1946.2 identifies a tenant’s refusal, after a written request or demand from the owner, to execute a written extension or renewal for an additional term of similar duration with similar provisions as an at-fault just cause in covered tenancies, provided the terms do not violate the statute or other law.
San Francisco Administrative Code § 37.9(a)(5) uses similar language: after a rental agreement has terminated, refusing a written request or demand for an extension or renewal for a further term of like duration and materially the same terms may be a just cause for eviction, so long as the terms do not conflict with the Rent Ordinance.
This rule does not mean that every landlord can convert a month-to-month option into a year-long commitment and automatically evict anyone who declines. The dispute may turn on:
- whether the landlord made a written request or demand;
- whether the proposed term is of similar or like duration;
- whether the other provisions are materially or similarly the same;
- whether the proposed rent is lawful;
- whether the tenancy is covered by the local or state just-cause rule; and
- whether the landlord followed the required eviction-notice and court procedures.
A lease clause allowing month-to-month continuation is important evidence. It does not necessarily guarantee that the tenant can demand a month-to-month arrangement at the same rent forever, and it does not automatically prove that a new one-year proposal is a qualifying renewal. The exact clause and the landlord’s written proposal need to be compared.
Notice timing: a 90-day rule is important, but limited
California Civil Code § 827(b) generally requires:
- at least 30 days’ written notice for a rent increase of 10% or less; and
- at least 90 days’ written notice when the proposed increase is greater than 10% of the rent charged during the preceding 12 months.
If a proposed change is more than 10% and the tenant has only been given about a month’s lead time, that timing deserves immediate review. But notice timing and rent-limit status are separate questions. A timely notice does not make a capped increase lawful, and a potentially capped increase is not automatically resolved just because the notice was late.
The analysis also depends on what the landlord is doing. A notice changing the rent during an existing month-to-month tenancy is different from an offer for a new agreement after a fixed term ends. The lease, the proposed document and the landlord’s wording should all be preserved.
If the tenant refuses, can the landlord evict immediately?
No. A refusal or disagreement does not authorize a lockout. San Francisco’s official guidance describes eviction as a legal process involving a written notice, an unlawful-detainer lawsuit, a court judgment and removal by the Sheriff. The City also says that a landlord cannot change the locks, remove possessions, shut off utilities or harass a tenant to force a move.
That does not guarantee that the tenant will prevail in a dispute. If a formal notice arrives, check the stated cause, dates, required language and service method promptly. If the landlord files an unlawful-detainer case, deadlines can be short. Contact the San Francisco Rent Board at 415-252-4600 for general Rent Ordinance information and seek qualified legal advice for a case-specific review.
Do not treat a phone call or a text message as the entire eviction process. At the same time, do not ignore a formal notice simply because an earlier conversation seemed informal.
A written request for the landlord’s position
The tenant can ask for a clear written breakdown without accusing the landlord of wrongdoing. For example:
Subject: Written breakdown of proposed rent and renewal terms
Please provide the proposed rent and renewal terms in writing, including the base rent, parking charge, other recurring charges, effective date, lease term and the legal basis for the proposed increase. Please also confirm whether the current month-to-month continuation provision remains available and, if not, explain the basis for requesting a new one-year agreement. This message is a request for clarification and is not acceptance or rejection of the proposal and is not notice that we intend to vacate.
If the landlord claims an AB 1482 or other exemption, ask for the specific exemption and the document or lease language supporting it. If the landlord says the increase is simply a new market rent, ask whether the tenant is being offered a renewal, a new tenancy or a change to the current agreement.
Keep the message focused. Avoid threats, unsupported accusations or statements that could be read as an agreement to surrender possession.
A 48-hour document checklist
Gather these records before making a decision:
- The complete current lease and every addendum.
- Earlier leases and renewal documents, if the roommates have lived there through multiple terms.
- The page containing any month-to-month or renewal language.
- The required exemption notice, if the landlord says the condo is exempt from California’s rent limits.
- The building’s approximate construction or certificate-of-occupancy date.
- The legal owner’s name and ownership entity, if available from the lease or public records.
- Rent and parking receipts for at least the preceding 12 months.
- The complete written proposal, including attachments and the date it was delivered.
- Envelopes, mailing records, portal logs and other proof of notice delivery.
- Emails, texts and notes from calls discussing the increase or the requested new lease.
Then create a single timeline with the lease start date, last rent increase, proposed effective date, date of notice, lease expiration date and any deadline to accept the new lease.
What not to do
Do not assume “condo” means “no protection”
Condo status may affect a state rent-cap exemption, but San Francisco’s eviction protections can still apply. Verify each protection independently.
Do not sign first and investigate later
Signing a new agreement may change the rent, term and available arguments. Ask questions and obtain advice before accepting a large increase if the legal status is unclear.
Do not stop paying rent as a protest
A dispute over a proposed increase does not automatically excuse current rent obligations. Keep records of payments, rejected payments and any amount you believe is undisputed. Seek advice before withholding or redirecting funds.
Do not rely on a portal payment as a complete strategy
A payment record may help show how the parties treated the tenancy, but it does not automatically decide whether a new lease was formed or which terms apply.
Do not confuse negotiation with an eviction notice
An email asking you to sign is not the same as a legally sufficient notice to vacate. If a formal notice arrives, however, review it immediately and preserve the full document.
Do not publicly accuse the landlord based only on the percentage
A 17.9% package increase is concerning, but the legal result depends on coverage, exemptions, timing, charges and documents. A factual written record is more useful than an unsupported accusation.
Where Pine fits
Open Pine to organize the lease, rent and parking records, exemption language, notices and timeline in one place. Pine can help surface missing dates and unresolved questions so a tenant can prepare a focused request or a clearer file for the San Francisco Rent Board or a local housing professional. It does not determine whether an increase is lawful or replace legal advice.
Frequently asked questions
Is a 20% rent increase legal for a San Francisco condo?
Not automatically. First determine whether San Francisco’s annual rent-limit rules, California’s Tenant Protection Act or a valid exemption applies. If no rent cap applies, the increase may still be subject to notice, lease, anti-retaliation and eviction-protection rules.
Does owning a condominium exempt the landlord from AB 1482?
Not by itself. A qualifying separately transferable condo may be exempt if the ownership and written-notice conditions in California Civil Code § 1947.12 are satisfied. Review the exact lease and ownership structure.
What is San Francisco’s allowable annual rent increase in 2026?
For covered units, the San Francisco Rent Board’s published rate is 1.6% for increases effective March 1, 2026 through February 28, 2027. Additional authorized increases and exemptions have separate rules.
Does a landlord have to give 90 days’ notice for a 20% increase?
California generally requires at least 90 days’ written notice for a rent increase greater than 10% under Civil Code § 827. That is a notice requirement, not a determination that the amount is permitted under a rent cap.
Can a landlord make me sign a one-year lease instead of letting me go month-to-month?
A landlord cannot physically compel a signature. But under California and San Francisco just-cause rules, refusing a written renewal request for a further term of similar duration and with similar or materially the same provisions may have consequences. Whether a one-year proposal qualifies when the existing agreement mentions month-to-month continuation is fact-specific.
Can the landlord evict me immediately if I refuse the new rent?
No. San Francisco requires a legal eviction process. The landlord generally must provide a legally sufficient written notice, file an unlawful-detainer case if necessary, obtain a court judgment and use the Sheriff for a physical removal. Do not ignore formal papers or assume a lockout is lawful.
Does parking count as rent?
San Francisco defines rent broadly and includes money connected with use or occupancy, including parking and housing services. The exact treatment can depend on the agreement and the law being applied, so ask for a separate written breakdown.
What should I do if the landlord says the unit is exempt?
Request the exemption in writing. Check the unit’s construction history, ownership entity, statutory notice and lease dates. Save the entire lease and seek a local review before accepting the explanation.
Official sources
- SF.gov: Evictions in San Francisco
- SF Rent Board
- SF Rent Board: Current rates and forms, including the 2026–2027 annual increase
- San Francisco Administrative Code § 37.2: Definitions
- San Francisco Administrative Code § 37.3: Rent Limitations
- San Francisco Administrative Code § 37.9: Evictions
- San Francisco Administrative Code § 37.10A: Enforcement provisions
- California Civil Code § 1946.2: Just cause for termination
- California Civil Code § 1947.12: Rent limits and exemptions
- California Civil Code § 827: Notice of changes in lease terms and rent
- California Attorney General: Landlord-Tenant Issues
This article provides general information, not legal advice. Laws, guidance and remedies can change, and the outcome of any dispute depends on the specific property, lease, notices, dates, payment records and jurisdiction. Consider consulting a qualified housing attorney or local tenant resource before taking action.
