Property Photo QA Workbench is an offline Python library and CLI for reviewing property catalogue images before release.

It checks image readability and configured minimum resolution, flags GPS metadata presence without publishing coordinates, finds byte-identical duplicates and offers perceptual-similarity candidates for human review. A CSV mapping connects images to property IDs so a reused photo across two objects is easy to inspect.

Outputs are a filterable HTML contact sheet with thumbnails and a JSON report. Source images are never changed. The complete project includes installation instructions, a runnable example, tests and a versioned source download.

The public demonstration contains six authored synthetic images across two invented properties: four flagged files and one exact duplicate shared across properties. No client photos, real addresses or market claims are included.

Visual similarity does not prove duplication, ownership or misuse. A generated report can contain private thumbnails and paths; keep real reports with authorised reviewers.

Developed by NovAsia Estate: https://novasia.estate/

Source and installation: https://github.com/novasia-estate/property-photo-qa

Synthetic report demo: https://novasia-estate.github.io/property-photo-qa/

Versioned source download: https://launchpad.net/property-photo-qa/trunk/1.0.0