How subletting works in SF
A sublet has three people in it: the landlord (owns the building), the original tenant (signed the 12 month lease, also called the sublessor or master tenant), and the subtenant (you, taking over for a month or three).
The original tenant stays on the hook with the landlord. You pay them directly, on terms you both agree to. They're usually traveling, taking a remote work stretch, doing a sabbatical, or splitting time between SF and somewhere else, and they don't want to break their lease just because they're gone for a few months. In SF in particular, where many tenants are sitting on a rent controlled apartment they'd be insane to give up, holding the lease while subletting for a season is the only sensible move.
For you, that's the unlock. You get a real furnished apartment, already on Wi Fi, often with parking or a garage spot, without first and last and a deposit equivalent to another month, without buying a bed you'll resell in ninety days, and without signing your name to a year of SF rent you can't predict. It's the corporate housing experience without the corporate housing markup.
The catch: SF has a 30 day minimum on most rentals. Anything shorter falls under the city's Short Term Rental Ordinance, administered by the Office of Short Term Rentals. Those stays require a registration certificate, must be in the host's primary residence (occupied at least 275 nights a year), and are capped at 90 unhosted nights annually. Most apartment buildings prohibit them outright in the lease.
Are sublets legal in SF?
Yes, when they follow three rules.
1. Stays must be 30 days or longer. Anything under 30 nights is a short term rental under SF Administrative Code Chapter 41A and requires Office of Short Term Rentals registration, a primary residence rule, and a hotel tax. Stays of 30 days or more sit outside that ordinance.
2. The original tenant needs landlord consent. California Civil Code §1995.260 bars the landlord from unreasonably withholding consent if the lease requires it. In San Francisco there's an extra protection: the SF Rent Ordinance gives tenants the right to replace a departing roommate or add a new occupant even when the lease forbids it, and the landlord has 14 days to approve or deny in writing. If they don't respond in 14 days or deny unreasonably, the request is deemed approved. The Housing Rights Committee of SF has a good plain language walkthrough.
3. The building has to allow it. Condos and TICs sometimes restrict subletting in their HOA bylaws. Rent controlled apartments, generally those in buildings of two or more units with a certificate of occupancy on or before June 13, 1979, have an extra rule: the master tenant can't charge a subtenant more than a proportional share of the rent. Profit on the spread is not allowed under SF Admin Code 41A.5, and the subtenant can recover the overage.
Section 8 vouchers and other publicly assisted leases prohibit subletting almost entirely. If you're in subsidized housing, this isn't a path for you.
How to find a sublet in SF
The classic playbook (Craigslist, Facebook groups, friend of a friend texts) still works, but every one of those channels is now flooded with rental scams. The number of "verified" Facebook listings that turn out to be photos pulled from Zillow is genuinely staggering. The Federal Trade Commission's rental listing scam guide is a good primer on the patterns.
Here's what works in 2026:
Use a platform that verifies listings. snag verifies every apartment listing before it goes live: ID checked sublessor, photos matched to a real address, lease confirmed. Anything you book in app comes with payment protection. If the furnished apartment isn't what was advertised, you get your money back.
Move fast in the spring. Summer sublet inventory peaks in late April as tech interns lock in places for June starts, and clears by mid May. If you're trying to land June through August, start in February or March. For September starts, August is the window. Tech relocations and UCSF residency cycles drive most of the rest of the year.
Filter by length, not just price. SF sublet inventory shifts dramatically by duration. One month sublets are mostly summer interns, conference visitors, and travel nurses. Three month sublets are people doing rotations, sabbaticals, founder programs, or seasonal remote work stretches.
Don't pay before you see it. Either in person, on a live video tour, or through a trustworthy housing platform that holds your payment until move in. Anyone asking for a wire, Zelle, Venmo, or crypto before you've seen the apartment is running a scam.
How to sublet your apartment
If you're the tenant going somewhere, for the summer, for a remote work stretch, for a relationship that just turned into a one way plane ticket, here's the path.
1. Read your lease. Find the sublet or assignment clause. Most SF leases require written landlord consent. If yours is silent on the question, California Civil Code §1995.210 means you can sublet without asking.
2. Send a written request to your landlord. Include the sublet term, the subtenant's name and contact info, the rent you'll be charging, and the reason. The landlord has 14 days to approve or deny in writing under SF Admin Code 41A.5. If they don't respond, the request is deemed approved by law.
3. Price it fairly. Market rate landlords don't restrict pricing. Rent controlled tenants have to follow the proportional share rule. You can't charge a subtenant more than the share of rent that corresponds to their share of the space. Charging more than that is illegal under the SF Rent Ordinance, and the subtenant can sue to recover.
4. Screen your subtenant. ID, employment, references. On snag this is built in, so you're not running background checks on your own.
5. Get it in writing. A sublease agreement isn't optional. It should cover dates, rent, deposit, parking, utilities, pet policy, who pays for what, and what happens if either side needs to break early.
You're still responsible to your landlord during the sublet. If your subtenant skips rent or breaks something, you owe it. That's why renter verification matters.
How to spot a sublet scam
The patterns are consistent.
- The price is too good. A $1,500 furnished 1BR in Pacific Heights does not exist in 2026. If you see one, it's bait.
- They won't let you see the apartment. "I'm already in Lisbon, the keys are with my cousin, just send the deposit." No.
- They want a wire, Zelle, Venmo, or crypto. Anything outside a platform's protected payment is a flag. No chargeback protection means no recovery if they disappear.
- The listing photos appear elsewhere. A reverse image search takes 30 seconds. Most SF scam photos come straight off Zillow, Apartments.com, or another active listing.
- The "landlord" is overseas. Real SF landlords are in SF, or have a property manager who is. Anyone "moving to Singapore for work" who needs a deposit before you've seen the place is lying.
- The lease doesn't match the address. Cross check the owner on the SF Property Information Map, the city's free public records tool, which shows the parcel and assessor data for every address.
A real verified sublet, booked through a trustworthy housing platform, costs maybe 5% more than a Craigslist roll of the dice. It's the cheapest insurance you'll buy this year.
