Off-Market Rentals in Zurich: Unadvertised Flats

To rent an apartment in Zurich that is never advertised, create a free private profile on Offlist with your dates, budget and household: landlords, owners and partner agents who let without a public listing then approach you directly. The other unadvertised routes are lease takeovers (Nachmieter), your employer's and your own network, relocation agents and housing cooperatives, and the main portals besides Homegate and ImmoScout24 are Flatfox, Comparis and Newhome.

The numbers explain why access matters more than browsing. On 1 June 2026, the City of Zurich counted 252 empty apartments, a vacancy rate of 0.11% (Statistik Stadt Zürich). The same release notes that around 2,000 apartments are offered on the Zurich market every month, and that most of them find a new tenant or buyer straight after the previous occupant moves out. Apartments change hands all the time; the question is whether you hear about one before it is gone.

Why Many Zurich Apartments Are Never Advertised

Private landlords in Switzerland have no obligation to advertise a rental, and in a market this tight many have little reason to. The common reasons:

• Volume. A well-priced listing in the city can draw more applications than a property manager can read. Many private landlords prefer a few complete files to hundreds of emails. Our explainer on why finding a flat in Zurich is so hard covers the data.
• Lease takeovers. A tenant who leaves early can propose a replacement tenant, and many find one among colleagues and friends before any advert appears.
• Employer channels. Large employers and their relocation partners keep direct contacts with owners and property managers.
• Low turnover in non-profit housing. Cooperative and city apartments change hands less often, and when they do, they are let quickly.

How large the unadvertised share is, nobody measures officially. In our experience, it rises with price and with demand for the district, so it matters most for furnished apartments, large family homes and lake-view addresses. For the buying and selling side, see our guide to off-market property in Zurich.

Alternatives to Homegate and ImmoScout24

Homegate and ImmoScout24 are the portals most people know. Both belong to SMG Swiss Marketplace Group, which also owns Flatfox (SMG). This is how the realistic alternatives in Zurich compare:

Option	How it works	Who it suits	Limits
Flatfox	Rental marketplace with free apartment listings, including replacement-tenant listings; applications and viewings run through its messenger	Active searchers, including for lease takeovers	Public, so the same competition; a paid Priority subscription lets subscribers contact some private advertisers earlier
Comparis	One search across listings from the large Swiss portals, plus listings published directly on Comparis	Anyone who wants one search and saved alerts	Mostly listings that are already public elsewhere
Newhome	Regional property portal; tenants looking for a replacement can list for free	A further source of listings and lease takeovers	Public listings, so the same competition
Cooperatives and city apartments	Non-profit landlords letting at cost; vacancies posted on their websites, the city's platform and portals	Long-term residents with time and flexibility	Occupancy rules, income limits for city apartments; demand far above supply
Relocation agent	You or your employer hire an agent who searches, books viewings and negotiates	Relocating executives and families short on time or contacts	You or your employer pay the fee
Lease takeover (Nachmieter)	A departing tenant proposes you to the landlord (Art. 264 CO)	People who can move at short notice	Same terms as the current lease; the landlord decides
Word of mouth and employer networks	HR, colleagues and friends pass on apartments before they are advertised	People already working or living in Zurich	Depends on your network; hard from abroad
Offlist	Free private profile; landlords, owners and partner agents who let without a listing approach you	Relocating executives, diplomats and families	No list to browse; you wait to be matched

Other portals: Flatfox, Comparis and Newhome

Flatfox is a rental marketplace where apartments, including replacement-tenant offers, can be listed for free (Flatfox), with a paid Priority subscription that lets subscribers contact selected private advertisers before non-subscribers (Flatfox Priority). Comparis gathers listings from the large Swiss portals and, since 2025, also carries listings published directly on Comparis (Comparis). Newhome calls itself a regional property portal and offers tenants a free listing to find a replacement (Newhome). Set alerts on all of them and reply the same day. They widen your view, but they do not give you access to apartments that are never published.

Housing cooperatives and city-owned apartments

At the end of 2023, non-profit apartments owned by cooperatives, the city and its foundations made up 27.0% of Zurich's rental stock, and the city aims for one third by 2050 (Stadt Zürich). These landlords let at cost, which is why their apartments are in such demand. Tenants also stay longer: in 2015 to 2019, turnover was 7.3% a year in non-profit apartments against 14.1% in private rentals, an average stay of about 14 years against 7 (Statistik Stadt Zürich).

What to expect:

• Waiting lists are mostly gone. According to the regional association, most cooperatives no longer keep waiting lists. They post vacancies on their own websites and on portals such as Homegate, Flatfox and Newhome, often only for a short time (Wohnbaugenossenschaften Zürich).
• Occupancy rules. Most cooperatives have occupancy guidelines, usually "persons plus one": a household of three gets at most a 4 or 4.5-room apartment.
• Membership. Residents usually become members and buy share certificates (Anteilscheine) instead of paying a rent deposit.
• City apartments. The City of Zurich advertises all its vacant apartments publicly on its own platform. For apartments that are not subsidised, at least as many people must live there as the number of rooms minus one, household income at the start may be at most four times the gross annual rent, and tenants must register their residence in the city (Stadt Zürich).

Cooperatives are a good long-term option, but they rarely work for a fixed relocation date, and the income limit can exclude higher earners from city apartments.

Relocation agents

A relocation agent searches on your behalf, uses contacts with property managers, attends viewings if you are still abroad and negotiates the lease. In a standard Swiss rental, the landlord pays any agent the landlord hires; an agent you hire is paid by you or your employer, in our experience usually as a fixed package or about one month's rent (indicative). Our relocation agent cost analysis shows when the fee pays for itself through a shorter stay in a furnished business apartment.

Lease takeovers (Nachmieter, Art. 264 CO)

Under Art. 264 of the Swiss Code of Obligations, a tenant who leaves without observing the notice period is released from the lease only if they propose a new tenant who is acceptable to the landlord, solvent and willing to take on the lease on the same terms. That makes departing tenants active recruiters. For you, it means:

• Ask around and watch the portals. Many takeovers are arranged among colleagues and friends; others appear as replacement-tenant listings on Flatfox or Newhome.
• Expect the same terms. The departing tenant needs someone willing to take the lease as it stands, including the rent, and usually on their timetable.
• The landlord decides. You still apply with a full file, and the landlord signs with you only if it accepts you.

If you are the one leaving, Offlist's lease transfer service proposes a solvent replacement tenant to your landlord.

Word of mouth and employer networks

Tell HR, your team and your friends that you are looking, with your budget, districts and dates. Ask whether your employer works with a relocation partner or has an internal housing board. This route works well once you are in Zurich and is hard to use from abroad; our guide to renting in Switzerland from abroad covers that case.

Offlist: let landlords approach you

Offlist turns the search around. You create a free private profile with your move-in date, budget, household and preferred districts. Landlords see your criteria, not your name, until you accept an invitation. Owners, landlords and partner agents who let without a public listing then contact you for private viewings. The network covers long-term unfurnished leases as well as furnished apartments, with a focus on Zurich and Zug. Our members are mainly relocating executives, diplomats and families.

The limits, plainly: there is no list to browse, you are matched rather than searching yourself, and a match depends on what landlords in the network have available. Use it alongside the other routes, not instead of them.

Prepare Before Anyone Calls

Unadvertised offers move quickly, so have one PDF ready before you need it: passport or ID, residence permit or permit assurance, a debt collection register extract no older than three months (or a home-country credit report if you have just arrived), your employment contract or recent payslips, and a short cover letter. Our rental application document checklist lists every item, and the Swiss rental glossary explains terms such as Nachmieter and Betreibungsauskunft.

Conclusion

In a city with 252 empty apartments, you find an unadvertised home through people and profiles, not through more searching: a lease takeover, a word from a colleague, an agent's contact, a cooperative vacancy or a landlord who has seen your profile. Combine the routes that fit your situation, keep your file ready and answer fast. Create a free private profile so that Zurich landlords who let without a public listing can find you.