Evidence for every field
Every figure in the listing, traced back to its source.
Paste an ImmoScout or Immowelt link, or drop in the Exposé PDF. KaufWach reads every page, extracts the full property profile with a page reference and a confidence score for each field, and works out what the purchase actually costs once energy retrofits and renovation are priced in.
Invite-only. Documents stay inside your tenant and are never used to train models.
Analysis run
3-room apartment · Hamburg-Eimsbüttel
Pipeline
- Fetching listing0%
- Reading Exposé
- Reading Energieausweis
- Classifying photos
- Extracting fields
- Scoring
- Building questionnaire
Extracted fields
| Field | Value | Evidence | Conf. |
|---|---|---|---|
| Living area | 84,5 m² | Exposé p. 2 | 98 % |
| Year built | 1968 | Exposé p. 2 | 96 % |
| Energy class | F · 178 kWh/(m²·a) | Energieausweis p. 1 | 99 % |
| Heating | Gastherme · 2004 | Photo 17 · nameplate | 82 % |
| Service charge | 310 € | Exposé p. 5 | 94 % |
- Asking price
- 349.000 €
- Purchase costs
- 11,4 %
- Renovation estimate
- 68.000 – 112.000 €
- True investment
- 456.800 – 500.800 €
GEG §72 — boiler replacement due
Gas boiler installed 2004, constant-temperature type. Replacement is mandatory once it passes 30 years.
What one analysis produces
Every run leaves an auditable trail: which document, which page, which confidence. Nothing is asserted without a pointer to where it came from.
- 45
- Profile fields extracted
- 100%
- Fields with evidence
- 2:40
- Median run time
- 30–60
- Viewing questions
Area, year, energy, financing, location — typed, not free text.
Document, page and bounding box for every populated value.
From pasted URL to scored report, including OCR.
Generated from low-confidence fields and open risks.
Bring one listing. See what it is actually worth.
First analysis runs in a few minutes. No card, no sales call.
How it works
Four steps, and you can inspect the reasoning at every one of them.
- 1
Import the listing
Paste the portal URL, upload the Exposé, the Energieausweis, the floor plan or the WEG minutes. Photos and your own notes count as sources too.
- Portals: ImmoScout24, Immowelt, Kleinanzeigen
- Scanned PDFs go through OCR page by page
- Every upload becomes a citable source
- 2
Extract with evidence
The model fills a typed property profile — living area, year built, energy class, service charge, commission. Each value is stored with the document, the page and a confidence score.
- 45 typed fields plus overflow
- Confidence below threshold is flagged, never guessed
- Nameplate photos are OCR-read for boiler model and year
- 3
Score the real cost
Energy risk against GEG obligations, renovation ranges from current cost tables, and the true total investment including Grunderwerbsteuer, notary and agent commission.
- GEG §72 boiler check and retrofit obligations
- Renovation ranges, not single fake numbers
- True investment as a min–max band
- 4
Take questions to the viewing
Everything the documents could not settle becomes a question — with the measurement, photo or nameplate capture needed to settle it. Answers flow back and the verdict updates.
- Grouped by room and by risk
- Works offline on your phone at the Besichtigung
- Submitted answers trigger a fresh analysis run
Inside the app
The actual screens
Not mockups — real screens from a real analysis. This is what you get back when you paste in a listing.
The property page: extracted profile, the true-investment figure, and the source behind every field.
Stop trusting the Exposé. Start checking it.
KaufWach is invite-only while we work with a small group of buyers and Kaufberater across Germany. Tell us the market you are buying in and we will send access.
- Your documents live in your own tenant
- Never used for model training
- Every claim carries a source pointer