Text, house numbers and signs
House numbers, street signs and hallway signs are often unreadable in AI images or change from photo to photo. Zoom all the way in: a house number that exists nowhere, or differs per photo, is a strong signal.
Funda AI Checker
Is this property photo AI?
Upload the photos from a Funda listing and get an AI-signal score per photo — free, no account, nothing to install. Funda does not expose public photo links, so you upload the listing photos yourself.
- Download the listing photos or take screenshots and upload those
- Max 12 photos per check, JPG/PNG/WebP
- Meant as a signal, not as legal proof
Upload the property photos to start.
Recent checks
Stored on this device only; no photo or personal data is sent apart from the uploaded photos.
What the score can tell you.
Generated property photos show up in listings for a home that is not for rent or sale, or does not exist. The detector looks for patterns that are common in AI-generated or heavily edited images.
- High score = elevated risk of AI-synthetic content
- Low score = no strong AI signals (still no guarantee the photo is real)
- Use the score to ask targeted questions, not as a final verdict
Upload only imagery you are permitted to use and that contains no personal data of others. A detector score proves nothing about ownership, availability or intent.
Why AI photos on Funda are a problem
What goes wrong, and why the eye misses it.
You judge a home from a distance: anyone who cannot attend a viewing screens the listing on its photos. An image generator produces a convincing living room in a minute, and the listing can show a property that is not for rent or sale, or does not exist at all.
A generative model has no model of the world: it predicts what a photo of this kind of thing usually looks like. That makes AI images convincing at a distance and inconsistent in the detail — the opposite of a real photo, which is messy at a distance and holds up close. Anyone scrolling a list quickly sees the convincing version.
The checker inverts that order. Every one of the property photos is scored separately for patterns associated with synthetic generation, so you know which photo is worth zooming into before you message a seller or place a bid.
Spotting it yourself: four things to check
Zoom all the way in and work through these four. Together they cost half a minute.
Windows, mirrors and reflections
Look at what comes back in the window or mirror. A room that does not match the floor plan, a view that cannot exist, or a photographer visible in one photo and absent in the next.
Structural logic
Stairs that lead nowhere, a dormer that exists outside but not inside, sockets in impossible places, skirting boards running through furniture.
Consistency with the floor plan
Put the photos beside the floor plan and the description: missing rooms, windows on the wrong facade, or a layout that cannot fit the stated floor area.
How to use the Funda AI Checker
- Upload the property photos. Funda does not expose public photo links, so download the listing photos or take screenshots and upload those here.
- Read the score per photo. The average across a listing is not what matters; the photo that stands out is.
- Zoom into what the score points at. Seams, letters, reflections, edges.
- Ask one verification question. Ask for a live video call showing a detail you choose, such as the house number on the front door or the view from the balcony. A pre-made or generated image cannot deliver that on request.
A score starts a conversation, it does not end one. The detector cannot see who made a file, with which tool, or whether the seller is acting in good faith.
When it goes wrong
Funda: report the listing using the report button on the page. In the Netherlands, report fraud to the Fraudehelpdesk and file a police report if you have lost money.
Keep the listing URL and screenshots before you report: listings with generated imagery often disappear within a day, evidence included.
Frequently asked questions
Is the Funda AI Checker free?
Yes. No account, no daily limit and no payment method. The check runs on the same detector as the rest of this site.
Does a high score prove the Funda photo is AI?
No. The result is a warning signal, not proof of origin. A high score means the photo carries patterns common in generated or heavily edited imagery. Use it to ask sharper questions.
What does a low score mean?
That no strong AI signals were found. It is not a guarantee the photo is real: a compressed, cropped or forwarded photo loses signal. When in doubt, the follow-up question to the seller still stands.
Are my photos stored?
No. Images are processed to compute the score and are not used for model training by default. The history under the checker lives in your own browser only.
How accurate is the detector on Funda imagery?
Measured recall and false-warning rate are published with sample size and interval on the accuracy page. The newest generation of imagery is the weakest spot and that figure is stated separately.