Observed arrival · 2026-09-09
Sous-sol Paris: Is Your Address Above a Quarry?
A €15 Paris address pre-diagnostic that assembles public subsurface data into a downloadable report about former quarries and ground-movement risk.
Field notes
The service combines an address lookup with public records from the Inspection Générale des Carrières, BRGM, Géorisques, DRIEAT, and other sources. Its stated output is a 6–10-page PDF covering the local underground context, historical incidents, practical procedures, and limits of the assessment. The homepage includes a fictional 42 rue Daguerre example from the 14th arrondissement and emphasizes that displayed zones are sector-level guides, not exact quarry plans.
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Editorial observations of this landing page, not a rating.
One card from the complete issue