This Consultation Concerns The Thermal Rehabilitation Of The Blum-Colombes School Group The Municipality Of Houdain Has Decided To Carry Out A Market In 3 Lots. The Lots Are Available As Follows: Lot 1 Repair Of The Blum School Roof Lot 2 Replacement Of Joinery- Blum-Colombes School Group Lot 3 Delivery And Installation Of Photovoltaic Panels- Blum/Colombes School Group/Colombes