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Business investigation

Housing & subletting fraud investigation: the actual living situation, documented

Santos Recherchebureau investigates suspected housing fraud (illegal subletting, address fraud, ghost occupancy or unauthorised room-by-room rental) by documenting the actual living situation over time: who comes and goes, who receives mail, who is actually present. The resulting report is suitable for use with a rental tribunal or in termination proceedings.

The registered tenant is on paper, but neighbours keep seeing different faces. Mail arrives addressed to strangers. For a housing corporation or landlord, a suspicion isn't enough. You need a consistent, objective picture before taking legal steps.

Common signs

  • Multiple unknown people structurally coming and going
  • The registered tenant is rarely or never present
  • Mail and packages addressed to other people
  • Nuisance reports or suspected room-by-room subletting

How we work

We build a consistent, legally sound case file through:

  • Structured static and dynamic surveillance over an extended period, using our own camera vehicles where needed
  • Establishing occupancy patterns: who comes/goes, who receives mail, who is present
  • Research using public and municipal sources
  • An objective report suitable as evidence for a rental tribunal or court

Our housing fraud investigators

Business investigators

Specialised in occupancy investigations for landlords and housing corporations.

All investigations are carried out by licensed investigators (POB 7635), within the framework of the Dutch Private Security Organisations and Investigation Bureaus Act (Wpbr) and the GDPR. Read more on our page Is hiring a private investigator legal?

Cost indication

Indicative cost
Investigation typeIndication
Intake & case-building advicefree of charge
Subletting/housing fraud investigationcustom quote, usually several weeks

See our full cost breakdown for more detail.

Frequently asked questions

What exactly is housing fraud?

Housing fraud includes illegal subletting, address fraud, ghost occupancy and unauthorised room-by-room rental: in short, any situation where actual occupancy doesn't match the rental or registration agreement.

How is subletting proven?

By consistently documenting who actually resides in the property over an extended period, combined with supporting sources such as mail delivery and reports from neighbours.

Can this lead to termination of the tenancy?

An objectively substantiated case file can be used by the landlord or housing corporation in proceedings to terminate the tenancy; the final decision rests with the court.

Do you work with housing corporations?

Yes, we support private landlords and homeowners' associations as well as housing corporations with this type of investigation.

Google Reviews

What clients say about us

Want to know what we can do for you?

Get in touch, free and without obligation. We respond within 24 hours and think along with you, discreetly.

4.9/5 · 16 reviews on Google · Licensed investigation bureau · POB 7635

Licensed by Justice & Security · POB 7635
Registered with the Dutch DPA · FG014825
100% discreet & confidential
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