Modernization of a narrow-gauge railway building complex with site development – Stage 2

Summary

The tender concerns the modernization and reconstruction of several buildings of a narrow-gauge railway building complex in Piaseczno, including the necessary technical infrastructure and site development. The works cover the Drezyniarnia, Elektrownia, Komórki, and forge, sheet-metal and welding workshop buildings. The completion period is 24 months from contract signature. The tender must be submitted electronically by 9 September 2026 at 09:00; tenders will be opened on the same day at 09:30. No tender guarantee is required, but a performance security equal to 5% of the gross tender price must be provided before contract signature. The evaluation criteria are price at 60%, warranty at 20%, and construction manager experience at 20%. The warranty period must be between 48 and 72 months. Participation requires evidence of the specified heritage-building experience, the required technical personnel and the tender documents. Physical workers performing general construction work must be employed under employment contracts, with a minimum of 4 persons; this requirement also applies to subcontractors.