Public contracts of the Essonne département · 2026
2025 2780 1 02-travaux de restauration du château de chamarande
That is at most ~€763k a year on average: a maximum too.
Who won it
Ateliers Perrault FreresTravaux de menuiserie bois et PVC · registered office Mauges-Sur-Loire (49290) · headcount 100 to 199 employees · SIREN 061201083A contract awarded to a consortium of 2 holders; above, the main holder. With it: Union Technique du Bâtiment. The amount is the whole contract’s: the DECP does not publish each holder’s share.
The competition
Median for this procedure in 2026: 3 bids, across 8946 comparable contracts. Open tender · awarded to 2 companies
Open data publishes the winner and the bid count — never the identity of unsuccessful bidders.
Number 21 by amount of the 88 contracts the Essonne département published for 2026.
Other contracts of Ateliers Perrault Freres in Essonne
Travaux de restauration des clos et couverts du château de Méréville…2023 · maximum over 5 years1.1€M02 Tx restauration château Méréville2023 · maximum over 13 months869€k02 Tx restauration château Méréville2022 · maximum over 13 months869€kContract details (procedure, price, amendments, lots)
Procedure : Appel d'offres ouvert
Price : Forfaitaire
Published amendments : 1
Subcontracting declared : yes
Contracts above €40,000 excluding VAT, as declared when they are awarded (DECP): contract amounts, not payments. Smaller contracts are not published; obviously wrong amounts are set aside.