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Sublease of a room in a shared flat (WG), in German (Switzerland)
Switzerland · in German
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Made for use in Switzerland
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For main tenants in Switzerland who sublet a room in their shared flat (WG): the agreement with the room and shared areas, the rent and each service charge listed (Art. 257a of the Code of Obligations, OR), the deposit in the subtenant's name (Art. 257e OR), the landlord's consent (Art. 262 OR) and notice of two weeks for a furnished room or three months otherwise. It says that the sublease depends on the main lease (Art. 273b OR) and that the main tenant gives notice on the canton's official form. Print and have both sides sign. In German.
- Made for use in Switzerland
- Last updated November 4, 2026
Published byDocMuse
When to use this document
- You rent a flat in Switzerland and want to let a spare room to a flatmate.
- Someone new is moving into your shared flat and you want rent, charges and deposit set down properly.
- A flatmate already lives with you, but there is nothing in writing yet.
- You are looking for a sublease for a room in a WG, furnished or empty.
What you fill in
The details the document asks for.
- Main tenant (sublandlord)
- Address of the property
- Subtenant
- Subtenant's current address
- Date of the contract
- Head landlord (landlord of the whole flat)
- Date of the landlord's permission to sublet
- Description of the room
- Shared areas the tenant may use
- Keys
- Furnished or unfurnished (sets the notice period)
- Inventory of furnishings
- Start date
- Open-ended or fixed term
- End date (fixed term only)
- Amount of rent
- Service charges, each listed (amount, advance or flat rate, what it covers)
- Monthly rent of the whole flat under the main lease (CHF)
- IBAN
- Rent deposit: yes or no
- Deposit amount
- House rules of the shared flat (cleaning rota, guests, pets, quiet hours)
- Additional terms
- City
- Date
Common questions
- Does a main tenant in Switzerland need consent to sublet a room in a WG?
- Yes, the landlord's consent (Art. 262 para. 1 OR). The landlord may refuse it only if the terms of the sublease are not disclosed, if they are abusive compared with the main lease, or if the sublease causes the landlord substantial disadvantages (para. 2). The reform that would have tightened this was rejected by referendum on 24 November 2024. In the canton of Vaud consent must be asked in writing and the landlord answers within thirty days (art. 21 RULV). A separate letter asks for it.
- How does a main tenant in Switzerland give notice to a subtenant?
- In writing and on the form approved by the canton, like any landlord of a home (Art. 266l para. 2 OR); without that form the notice is void (Art. 266o OR). The period is two weeks to the end of a one-month rental period for a furnished room (Art. 266e OR), otherwise three months to a local termination date (Art. 266c OR). The subtenant can challenge the notice at the conciliation authority within 30 days, but an extension runs only as long as the main lease (Art. 273, 273b OR).
- How much may a sub-rent be in Switzerland, and how is a deposit held?
- The sub-rent must stand in a justifiable relation to the rent of the whole flat, for instance by the share of floor space and shared areas; abusive terms are a ground for the landlord to refuse consent (Art. 262 para. 2 OR), and a main tenant who sublets on such terms without consent risks, after a written warning, notice ending the main lease (Art. 257f para. 3 OR; BGE 134 III 300). Service charges are owed only as far as they are listed one by one (Art. 257a para. 2 OR). A deposit is at most three months' rent and goes into a bank account in the subtenant's name, not to the main tenant in cash (Art. 257e OR).
- What happens to a Swiss sublease when the main lease ends?
- It depends on the main lease: once that is ended, the subtenant must give the room back on request, and an extension is possible only as long as the main tenancy is extended (Art. 273b para. 1 OR). The main tenant therefore has to give the subtenant notice in time, on the official form. The landlord has no duty to take the subtenant on as the new tenant. Where the canton requires the initial-rent form, it applies to the sublease too.
How you can sign this document
- Print it and sign by hand. The signature lines in the document are left blank on purpose — sign on them in ink.
- Sign it yourself with a qualified electronic signature. If you already hold a QES — Evrotrust, B-Trust, StampIT, ZealiD or any qualified provider on the EU Trusted List, on a card, a USB token, in a mobile app or in the cloud — our signing guide explains step by step how to sign this exact file without invalidating it. Step-by-step help, and a way to check it worked
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Related documents
- Sublease of a room in a colocation (shared flat), in French (Switzerland)
For main tenants in Switzerland who sublet a room in their shared flat (colocation): the agreement with the room and shared areas, the rent and the service charges listed one by one (Art. 257a of the Code of Obligations, CO), the rent deposit in the subtenant's name (Art. 257e CO), the landlord's consent (Art. 262 CO) and notice of two weeks for a furnished room or three months otherwise. It states that the sublease depends on the main lease (Art. 273b CO) and that the main tenant gives notice on the official form. Print and have both sides sign. In French.
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