Housing fraud investigation — protect your housing stock
Housing fraud undermines your housing stock, drives up costs, and damages liveability. We investigate suspicions of illegal subletting, fictitious tenancy, and unlawful use — and deliver evidence so you can intervene.
Real Estate
Housing Fraud Investigation (Real Estate)
Housing fraud is a growing problem in the Dutch housing market. Social housing illegally sublet via Airbnb or Booking, tenants who do not live at the address but sublet the property, or individuals who register at an address for benefits while living elsewhere — this costs housing associations and landlords millions annually. But it is not only about money. Housing fraud displaces people who are entitled to a home, causes nuisance, and can be a breeding ground for criminal activities.
What we investigate
What do we investigate?
We investigate all forms of housing fraud: illegal subletting via online platforms, fictitious tenancy where the tenant factually lives elsewhere, address fraud for benefits, unlawful use such as cannabis cultivation or commercial activities, and overcrowding beyond what the rental agreement permits. All findings are documented with visual evidence.
How does it work?
you share your suspicions and available information. We assess feasibility and advise on the approach.
observation, address verification, digital investigation on online platforms, and neighbourhood research where needed.
a factual report with findings, visual evidence, and timeline — prepared for lease termination proceedings.
we advise on next steps — formal notice, termination, police report, or collaboration with the municipality.
Want to discuss your situation?
Contact us for a free, confidential consultation.
⚖️ Legal framework
SAJ Recherche operates in compliance with the Dutch Private Security and Investigation Agencies Act (Wpbr) and the General Data Protection Regulation (GDPR/AVG). All investigations are conducted under POB licence 8779, issued by the Ministry of Justice and Security.
Legal recognition and licences
Frequently asked questions
Can I as a landlord collect evidence myself?
How long does a housing fraud investigation take?
Is the report sufficient for termination of the rental agreement?
Does SAJ Recherche also work with municipalities?
What does a housing fraud investigation cost?
Read more about housing fraud investigation (real estate)
Ready for the next step?
Schedule a free intake meeting and discover how we can help.