Posted: 4th November 2025

Subletting Surge: How to Spot and Stop Unauthorised Tenants

Warning signs

Unfamiliar faces in the property, sudden changes in utility usage, or complaints from neighbours may indicate someone else is living there. Trust your instincts and investigate gently – often, early detection avoids conflict later.

Legal remedies

Tenants who sublet without permission are breaching their tenancy agreement. Start by issuing a formal notice, and if the situation continues, seek legal advice. Court action may be necessary in persistent cases.

Tenancy agreement clauses

Clearly worded clauses about subletting are essential. Specify whether it’s allowed, the process for seeking approval and consequences for breaches. Strong agreements make enforcement far easier.

Investigation methods

Document your findings carefully. Check utility bills, communicate openly with tenants, and, where appropriate, consider professional property management or legal support to ensure you follow the correct process.

Concerned about subletting in your rental?

Contact us for advice on tenancy agreements, detection strategies, and legal support to protect your investment

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