Construction of a retention reservoir at Primary School No. 5 in Siedlce under a design-and-build formula

Summary

The tender covers the design and construction of one underground retention reservoir for stormwater at Primary School No. 5 in Siedlce. The works include design documentation and approvals, construction of the reservoir and associated road, sanitary and electrical works, restoration of surfaces and land, and new landscaping. The project is to be delivered under a design-and-build formula and is expected to last 7 months. The bidder must demonstrate financial capacity of at least PLN 450,000, the required previous construction experience, and a suitably qualified design and construction team. The tender must be submitted electronically in Polish by 23 September 2026 at 08:45. A PLN 9,000 bid guarantee and performance security are required. Tenders will be evaluated on price (60%) and quality guarantee (40%).