Observed arrival · 2026-09-14

Could Your Paris Home Sit Above a Quarry?

soussolparis.com Observed source

Editorial interest 78/100 Selection signal · not a rating of the site

Sous-sol Paris offers a €15 address-based pre-diagnosis of underground-quarry risk in Paris.

Landing page captured for the 2026-09-14 issue.

Field notes

The service combines address entry with public subsurface records from the Inspection Générale des Carrières, BRGM, Géorisques, and regional sources. Its map covers undermined zones and recent collapses, while the paid report adds sector history, cited sources, and suggested démarches such as an IGC consultation or geotechnical study. The page says Paris contains more than 835 hectares of former limestone and gypsum quarries, but emphasizes that its locations are approximate and do not reproduce the exact quarry geometry held by the IGC.

Observed signals

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Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

$PaidCommerce or pricing visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

◉HumanPersonal, local, civic, or handmade

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