Spotting and Stopping Unauthorised Subletting

As a landlord, unauthorised subletting can feel like a betrayal, undermining your control and potentially causing significant issues. From overcrowding and unpaid rent to property damage and legal liabilities, having unauthorised occupants can seriously compromise your investment. Here’s how to spot and stop it.

What Is Unauthorised Subletting?
This occurs when a tenant rents out all or part of your property to another person without your consent. It might be a formal arrangement or something more casual, like listing a room on a short-let platform or taking in a lodger.

How to Detect It
Keep an eye out for warning signs: an unexpected number of people coming and going, changes in utility usage, or neighbour complaints about unfamiliar faces. If your named tenant becomes evasive or unreachable, it’s time to investigate.

Routine inspections—conducted with proper notice—can help you spot signs early. Look for extra beds, duplicated keys, or evidence of multiple occupants.

Prevention Starts with the Tenancy Agreement
A well-drafted agreement should explicitly prohibit subletting without your written permission. This clause gives you the legal backing to challenge any unauthorised arrangements.

What to Do If You Discover It
If you suspect or confirm unauthorised subletting, start by speaking with your tenant. Document the conversation and gather evidence. Depending on the situation, you may issue a formal warning or serve notice, ensuring you follow the correct legal process.

Stay Vigilant
Clear communication, strong agreements, and regular inspections are your best defences. By staying engaged and informed, you can protect your property—and your peace of mind. For further guidance, Burnett's is here to support you with expert estate and letting services.