Vacancy Decontrol in San Francisco: Resetting Rent to Market

Vacancy decontrol generally allows an owner to set a new market rent once a rent-controlled unit in San Francisco becomes lawfully vacant. California's Costa-Hawkins Rental Housing Act permits that reset, but statutory exceptions and local tenant protections apply. How the unit became vacant matters, and increases after the reset stay regulated.

Key Takeaways

• Costa-Hawkins generally permits a new initial rent after a qualifying vacancy.
• A vacant unit doesn't automatically qualify for a market-rate reset.
• The new rent becomes the base for future regulated increases.
• Long-term projections need to account for vacancy costs, legal restrictions, and the value of keeping a good tenant in place.

What Is Vacancy Decontrol in San Francisco?

A San Francisco unit rented for $1,800 might command considerably more under a new lease, and that gap shapes how an owner projects a building's income, especially in older rent-controlled stock. The sitting tenant's rent can't simply be raised to the market level.

California Civil Code Section 1954.53 generally allows an owner to set the initial rental rate when a qualifying new tenancy begins. This provision forms part of the Costa-Hawkins Rental Housing Act, beginning at Civil Code Section 1954.50.

The Costa-Hawkins vacancy rule operates alongside San Francisco's local rent ordinance. Once a qualifying vacancy occurs, the newly set rent becomes the starting point for later regulated increases.

Keep this separate from permanent decontrol. A unit doesn't necessarily lose its rent-controlled status just because one tenancy ends.

For an owner evaluating a building's income, the distinction matters. Current rent is a known number. What a vacancy might produce later is not, and the answer depends on how the tenancy ended and what the law allows.

Which Vacancies Let You Reset the Rent to Market?

Start with the termination record.

A tenant who decides to move and hands back possession at the end of the tenancy is a different legal situation from a tenant who leaves after an owner-issued termination notice.

Under Civil Code Section 1954.53(a)(1), an owner generally can't set an unrestricted initial rent where the previous tenancy ended through specified owner notices under Civil Code Sections 1946.1 or 827, subject to the statute's terms.

Other restrictions cover units tied to certain government agreements and affordable-housing arrangements under Section 1954.53(a)(1)–(2). In practice that includes a unit covered by a contract with a public entity in exchange for a direct financial contribution, and one that received another form of assistance under the state density bonus law at Government Code Section 65915 and following.

Qualifying code violations can also affect the owner's right to set a new initial rent. Assess those restrictions under the applicable state and local provisions rather than treating them as a blanket bar covering every outstanding repair.

Owner-initiated terminations need particular care. A lawful eviction doesn't establish, on its own, that an unrestricted new rent is available.

San Francisco's Administrative Code Section 37.3 and the relevant Rent Board rules govern the local application of rent limitations and vacancy provisions.

Vacancy Type and Reset Availability

How the unit became vacant	Is a market reset generally available?	What needs verification
Tenant independently gives notice and vacates	Generally yes	Voluntary departure, termination records, and any applicable restrictions
Lawful termination for cause	Depends on the grounds and statutory provisions	Notice, legal basis, and tenancy history
Owner-initiated no-fault termination	May be restricted	Specific termination ground and applicable state and local rules
Unit affected by qualifying unresolved code violations	A reset may be restricted	Nature, timing, and status of the violations
Vacancy following a regulated buyout agreement	Potentially, subject to legal compliance	Required disclosures, agreement, rescission rights, and filing
Original tenant leaves while subtenants remain	Fact-specific	Occupancy history, consent, notices, and legal status of remaining occupants

Get legal advice where the circumstances are disputed or the records don't establish how the tenancy ended.

What Happens When the Last Original Tenant Moves Out?

Some of the hardest rent histories involve units occupied by people who were never parties to the original lease.

An original tenant may have moved out years ago while an authorized roommate or subtenant stayed on, and rent may have kept coming in without anyone reviewing what that meant for the tenancy.

California Civil Code Section 1954.53(d) and San Francisco's Rent Board Rules, including Section 6.14, address circumstances involving the departure of original occupants.

Whether a new rent can be set for the remaining occupants depends on the actual tenancy arrangements, the notices, and the owner's knowledge and consent. The dates matter, and so do the documents.

An owner who inherited the property may have little information about when individual occupants arrived or whether an agreement was ever amended.

That uncertainty can't be resolved by assuming the departure of the person named on the oldest lease creates an unrestricted right to raise rent.

These cases belong with qualified counsel rather than an automatic rent-reset procedure.

How Owners Lose the Right to Reset Rent

Incomplete records can undo an otherwise legitimate vacancy.

Missing notices, conflicting lease documents, and unclear occupancy histories can leave an owner unable to show that a proposed new rent is lawful.

Outstanding code matters need attention too. How much they matter depends on the provisions involved and the status of the violations. The conduct leading up to the vacancy is a separate concern.

San Francisco regulates tenant buyout negotiations under Administrative Code Section 37.9E.

The ordinance requires prescribed disclosures before covered negotiations, protects the tenant's right to decline an agreement, and provides a 45-day rescission period after execution, meaning the tenant can cancel the signed agreement within those 45 days without giving a reason. Filing requirements also apply.

Separately, Ordinance No. 3-26, effective February 7, 2026, added Planning Code Section 317.2 to govern residential demolition and major renovation. It doesn't amend the buyout rules, but it does condition demolition authorization on prior buyout compliance, and it counts tenants who vacated under an owner-move-in eviction within the previous three years among a building's existing occupants.

Section 37.10B addresses tenant harassment, including prohibited conduct involving services, repairs, access, intimidation, and coercion. Read its enforcement provisions in light of the court rulings noted in the ordinance.

Possession obtained improperly can wipe out the anticipated rent benefit and create substantial liability.

What You Cannot Do to Create a Vacancy

Vacancy decontrol applies when the legal conditions for a new tenancy are met. It doesn't justify pushing a tenant to leave. San Francisco's buyout ordinance, Section 37.9E, and tenant harassment provisions, Section 37.10B, place enforceable limits on conduct intended to obtain possession.

How Much Is a Rent Reset Worth Over a Hold Period?

A rent reset affects more than the first month's income. Once it's lawfully established, the new rent becomes the base against which future permitted increases are measured.

Here's an illustration. A unit currently rents for $2,000 per month. Following a qualifying voluntary vacancy, assume a new tenancy begins at $3,000 per month.

The initial difference is $1,000 per month, or $12,000 over a full year.

If those monthly rents remained unchanged, five full years would produce a gross rental income difference of $60,000.

This is an illustration, not a market-rent estimate or a prediction.

Actual results vary by unit, building, expenses, and lender assumptions. The calculation excludes downtime, repairs, leasing costs, concessions, collection losses, and future rent increases.

For a longer model, project the new base rent using the annual increases legally applicable in each period. Those increases can't be known for the whole hold at the outset.

Look at the effect through net operating income, not gross rent alone.

A costly renovation, a long marketing period, or a large leasing concession can cut the benefit sharply, and the building's income statement should carry those costs in the right periods.

How a Rent Reset Affects a Refinance

When the income gets established can matter to an owner seeking refinancing.

Most lenders look at actual collections, current leases, and trailing operating results alongside their own projections.

A lender may treat an expected increase from a future vacancy differently from rent already established under a signed lease.

Say a refinance is scheduled before a unit's existing tenancy ends. An investor may expect higher rent eventually, but that projection doesn't necessarily support the lender's current net operating income calculation.

Trailing-twelve-month results show recent operating performance. An in-place income schedule reflects current leases. The two can produce different figures when a building has been through heavy leasing changes.

The associated discussion of DSCR, debt yield, and LTV explains how underwritten income affects financing analysis.

For prospective buyers, the same care applies to any projected rental resets in an SF multifamily underwriting.

Turnover Checklist for a Clean Rent Reset

Once a lawful vacancy has happened, the work is largely administrative.

Close out the previous tenancy with a clear record. The file needs the relevant notice or agreement, evidence that possession was surrendered, and the paperwork to resolve deposits and anything else outstanding. Then inspect the unit and record its condition.

Repairs may be needed before the unit can be offered for rent. Review open code matters separately, especially where they may affect the right to set an initial rent.

Contractor scopes, invoices, and completion records provide useful evidence of the work performed.

On turnover of a rent-controlled unit, the next lease has to state the initial rent and other material terms accurately. Keep a signed copy with the supporting tenancy and rent records.

Enter the new tenant's start date, the lawful initial rent, and any required Rent Board reporting into the property's management records.

San Francisco's Housing Inventory also has annual reporting obligations. For covered units, compliance is necessary before subsequent annual or banked rent increases can become enforceable.

Complete records avoid unnecessary trouble at the next rent review, sale, or lender review.

Should You Keep a Long-Term Tenant or Reset the Rent?

A long-term tenant who pays on time and keeps a stable tenancy is worth real money.

There are no vacancy days, no advertising spend, and no turnover bill while that tenant stays. A hypothetical future market rent doesn't pay any of those costs.

It's tempting to compare the current rent against the potential new one and stop there. That comparison leaves out the cost and uncertainty of a vacant unit.

With an established tenant, the job stays the same: proper maintenance, lawful rent administration, and a working landlord-tenant relationship.

When a tenant decides on their own to leave, the owner can weigh the legal and financial consequences then.

What Happens to Rent Increases After the Reset?

A new initial rent doesn't give the owner unlimited discretion over later increases.

Where the unit stays subject to San Francisco's local rent stabilization limits, the Rent Ordinance governs later increases.

For March 1, 2026, through February 28, 2027, the San Francisco Rent Board's published allowable annual increase is 1.6%.

The amount permitted in later years depends on the annual figures the Board publishes and the unit's own circumstances.

Confirm Housing Inventory reporting and any other conditions before serving the next increase notice.

The distinction worth holding on to: an eligible vacancy may permit a new initial rent, while the rent-control framework keeps governing what comes after.

So vacancy decontrol belongs in the property's legal records as much as in its financial projections.

BanCal Properties helps owners with the operating documentation around lawful unit turnover. For a property-specific review, contact our management team.

Frequently Asked Questions

Author  Kelli Smith