Address Fraud Investigation: does the tenant actually live where they say?
Address fraud costs society millions each year in wrongful benefits, allowances, and social housing. We establish objectively and with legally admissible evidence whether someone genuinely resides at their registered address.
Real Estate
Address Fraud Investigation
Address fraud is a widespread but difficult-to-prove problem. Tenants who are registered at an address where they do not actually live often do so to claim housing or healthcare benefits, social welfare, or a social housing unit they would not otherwise qualify for. For housing associations, private landlords, homeowners associations, and municipalities, this means properties are occupied by the wrong people, tenancy agreements are breached, and waiting times for legitimate applicants grow unnecessarily. Without objective evidence, taking legal action is risky: a court or enforcement body needs facts, not suspicions. SAJ Recherche (licensed private investigation agency, permit POB 8779, Dutch Ministry of Justice) conducts independent address fraud investigations and delivers the factual evidence you need to act.
What we investigate
Address fraud, residential fraud, and illegal subletting: what is the difference?
These three terms are often used interchangeably, but they are legally and factually distinct. Address fraud is the core issue in this investigation: a person is registered at address A but actually lives somewhere else. The aim is usually financial gain (benefits, allowances) or access to scarce social housing. Residential fraud is the broader category and includes situations where the property is occupied, but by the wrong people, for example by family members of the registered tenant rather than the tenant themselves. Illegal subletting means the tenant is renting out the property (wholly or partly) to third parties without the landlord's consent, while living elsewhere or commercially exploiting the unit. SAJ investigates all three forms. See also our page on [residential fraud and subletting](/en/services/housing-fraud-real-estate/) for the broader context.
Who uses address fraud investigation?
Housing associations that have received signals a tenant is not occupying their property, or that want to reclaim a unit after prolonged absence. Private landlords who suspect their tenant is living elsewhere and allowing others to use the property or subletting it. Homeowners associations (VvE) and property managers dealing with irregular occupancy in apartment buildings. Municipalities and social services seeking to establish benefits or welfare fraud based on actual place of residence. Benefits agencies (UWV, municipal welfare departments) with signals that a claimant does not live at their registered address. The report can be used for BRP (Municipal Personal Records) correction, recovery of wrongfully paid benefits from the tax authority, and termination of the tenancy agreement at the subdistrict court.
Red flags: signals that may indicate address fraud
In practice, address fraud investigations are triggered by a recognisable set of warning signs. The property appears rarely occupied and neighbours have never seen the registered resident. Post is not collected or is being forwarded to a different address. A different residential address is visible on social media, delivery accounts, or public registers. Multiple persons are registered at the address but none appear to live there. The tenant is hard to reach and avoids contact with the landlord or housing association. Utility consumption is unusually high or suspiciously low. The tenant's vehicle is never seen at the property. These signals, taken together, typically provide a proportionate basis to commission an investigation.
How the investigation works
Step 1, Intake and assessment: You share the available signals and your objective (BRP correction, tenancy termination, benefit recovery). We assess whether the investigation is proportionate and GDPR-compliant and advise on the approach and expected timeline. Step 2, Investigation plan: We determine which methods are appropriate: physical surveillance of the address, neighbourhood inquiries (conversations with neighbours or building managers), address verification, digital open-source research (public registers, social media, delivery platforms), and comparison with BRP records. Step 3, Field work by licensed investigators: Our investigators conduct observations at varying times and document all findings forensically with date, time, and location stamps. The registered resident is unaware of the investigation. Step 4, Digital verification: Alongside field work, we cross-reference findings with digital indicators: public registers, classified ad platforms, social media activity, and delivery addresses. Step 5, Reporting: You receive a factual, objective report including photographic and video evidence, observation logs, and a timeline. The report is prepared for use with the subdistrict court, municipal enforcement, and the tax authority.
Legal admissibility and GDPR/Wpbr framework
Evidence from an address fraud investigation is only admissible if it was gathered by a licensed agency operating in accordance with the Dutch Private Security Organisations and Detective Agencies Act (Wpbr) and the Privacy Code of Conduct for private investigation agencies. SAJ Recherche holds permit POB 8779 from the Dutch Ministry of Justice. In practice this means: investigation methods are proportionate and minimally intrusive, all findings are factually substantiated rather than speculative, the report explicitly states the methods used and the legal basis, and the court, housing association, or municipality can use the report directly as evidence. The evidence from our investigation can be used for termination of the tenancy agreement at the subdistrict court, correction of the BRP registration via municipal enforcement, recovery of housing benefits or welfare payments from the tax authority or benefits agency, and a police report for forgery or benefits fraud. See also our [tenant screening](/en/services/tenant-screening/) page if you want to prevent fraud before a tenancy agreement is signed.
What the report delivers and how long it takes
An address fraud investigation typically takes 1 to 3 weeks, depending on the required observation period and the complexity of the situation. Where signals are clear-cut, sufficient evidence is sometimes available within one week. You receive a final report containing a factual summary of findings, all observation logs with timestamps and location, photographic and video evidence of actual occupancy (or the absence of it), a comparison with the BRP registration, a conclusion on the actual residential situation, and advice on the appropriate next steps. The report is suitable as an attachment to a petition to the subdistrict court, a notification to the municipality for BRP correction or enforcement action, and a recovery request to the tax authority or benefits agency. If you also need investigation into related forms of property fraud, see our pages on [property fraud investigation](/en/services/real-estate-fraud/) and [subletting and sham occupancy investigation](/en/services/subletting-investigation/).
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⚖️ 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
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Frequently asked questions
How do you prove address fraud?
What does an address fraud investigation cost?
Is the evidence from an address fraud investigation legally admissible?
Is address fraud a criminal offence?
Do you work with municipal enforcement officers?
Can I use the report to terminate the tenancy agreement?
What is the difference between address fraud and residential fraud?
Read more about address fraud investigation