Door Opening Chaumont-Gistoux

Chaumont-Gistoux: Six Villages in the Heart of Walloon Brabant

With 11,894 inhabitants (2025) over 48.33 km² (density 246.12 inh./km²), Chaumont-Gistoux is a French-speaking commune of Walloon Brabant. It comprises six sections: Chaumont-Gistoux (4,110 inh.), Corroy-le-Grand (1,930 inh.), Dion-le-Mont (3,349 inh.), Dion-le-Val (526 inh.), Bonlez (1,170 inh.) and Longueville (809 inh.).

Sections and profile

Chaumont-Gistoux centre : Most populous core, mixing terraced houses, villas and recent subdivisions.

Corroy-le-Grand, Dion-le-Mont, Bonlez : Residential sections with semi-rural character, popular with families.

Dion-le-Val and Longueville : Smaller, more rural sections with farms and scattered housing.

Geography and heritage

The Train stream flows through the commune and feeds into the Dyle river. The region holds significant Neolithic and Bronze Age archaeological sites, including the Michelsberg culture plateau and Bronze Age burial mounds.

Local specialty

The commune is renowned for its sugar tarts, a traditional local gastronomic specialty.

Lock types in Chaumont-Gistoux

The centre retains older houses with mortise locks. Villas and subdivisions in the residential sections (Dion-le-Mont, Bonlez, Corroy-le-Grand) use multipoint locks and certified cylinders. Farms in the rural sections (Dion-le-Val, Longueville) retain heavy locks on older doors.

Daily interventions in Chaumont-Gistoux

Proximity to Wavre (8 km) and Louvain-la-Neuve (10 km) makes this a popular commuter town. The size (~48 km²) and dispersion across 6 sections require solid local knowledge.