Wegweiser Tenants · Housing rights Deutsch

👥 Subletting and shared flats

When you may sublet part of the flat and what to bear in mind legally in a shared flat.

In brief

Without the landlord's permission you may not hand the flat over to third parties, not even as a sublet.

If, after the agreement was concluded, a legitimate interest arises to hand part of the flat over to third parties, you can demand permission. This can be, for example, a flat that is partly empty because of a job change. The landlord may refuse if there is good cause in the person of the third party or the flat would be overcrowded.

If the landlord agrees only against a surcharge, this may be permissible if subletting would otherwise be unreasonable.

In a shared flat a lot depends on whether everyone is on the main tenancy agreement or whether there are sublease agreements. Read your agreement carefully.

Step by step

  1. Obtain permissionAsk the landlord for permission in writing. Name the person and the reason.
  2. Conclude an agreementPut the rent, service charges and notice periods in writing with the subtenant.
  3. Check a refusalAsk the tenants' association (Mieterverein) whether the refusal was permissible.
  4. Clarify shared-flat rulesClarify who is on the main agreement and who owes what to whom.

Deadlines

Permission needed
No subletting without permission§ 540 Abs. 1 BGB
Entitlement where there is a legitimate interest
Demand permission for part of the residential space§ 553 Abs. 1 BGB
Watch out – common mistakes
  • Subletting without permission can lead to termination.
  • You are also liable for the subtenant's misconduct (§ 540 Abs. 2 BGB).
  • The landlord may make consent conditional on a rent surcharge if it would otherwise be unreasonable (§ 553 Abs. 2 BGB).
  • On joint liability, individual flatmates moving out and the deposit in a shared flat, this Wegweiser gives no verified statements.
In depth · legal basis, figures and practice – for advisers and professionals

Permission requirement, § 540 BGB

Without the landlord's permission, the tenant is not entitled to hand over use of the rented property to a third party, in particular to sublet it. If the landlord refuses permission, the tenant can terminate the tenancy extraordinarily with the statutory period, unless there is good cause in the person of the third party. The tenant is responsible for fault attributable to the third party in using the property even if the landlord has given permission (para. 2).

Entitlement to permission, § 553 BGB

If, after the tenancy agreement is concluded, a legitimate interest arises for the tenant to hand part of the residential space over to a third party for use, he can demand permission from the landlord. This does not apply if there is good cause in the person of the third party, if the residential space would be overcrowded or if the handover cannot reasonably be expected of the landlord for other reasons. If the handover can reasonably be expected of the landlord only with an appropriate rent increase, he can make permission conditional on it. Deviating agreements to the tenant's detriment are invalid.

Gap

For questions typical of shared flats (several main tenants, individual tenants moving out, joint debtors), no primary sources were evaluated for this Wegweiser. Please seek advice in the individual case.

Who is responsible
  • Landlord (permission)
  • Tenants' association (Mieterverein, advice on subletting and shared flats)
  • Local court (Amtsgericht, in a dispute over permission)

Quick questions

Worum geht es bei „Subletting and shared flats“?
When you may sublet part of the flat and what to bear in mind legally in a shared flat.
Which deadlines and figures matter?
  • Permission needed: No subletting without permission (§ 540 Abs. 1 BGB)
  • Entitlement where there is a legitimate interest: Demand permission for part of the residential space (§ 553 Abs. 1 BGB)
What should I do first?
  • Obtain permission: Ask the landlord for permission in writing. Name the person and the reason.
  • Conclude an agreement: Put the rent, service charges and notice periods in writing with the subtenant.
  • Check a refusal: Ask the tenants' association (Mieterverein) whether the refusal was permissible.
What do I need to watch out for?
  • Subletting without permission can lead to termination.
  • You are also liable for the subtenant's misconduct (§ 540 Abs. 2 BGB).
  • The landlord may make consent conditional on a rent surcharge if it would otherwise be unreasonable (§ 553 Abs. 2 BGB).
Evidence
  • Bundesministerium der Justiz, Gesetze im Internet, § 540 BGB, retrieved 20 September 2026
  • Bundesministerium der Justiz, Gesetze im Internet, § 553 BGB, retrieved 20 September 2026
  • Deutscher Mieterbund, home page (advice offering), retrieved 20 September 2026
As of

September 2026 · Sources and method

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