Design and construction of an investment project to improve energy efficiency in public buildings in Łęczyca County – the building at 18 Mickiewicza Street

Summary

The tender covers the design and construction of the public-use building at 18 Mickiewicza Street in Łęczyca under a design-and-build arrangement. The scope includes preparing complete design and permit documentation, arranging gas and electricity grid connections, modernising the heating system with a gas boiler and an air-to-air heat pump, connecting the building to the gas network, insulating the walls, foundations and roof, replacing windows and doors, and installing a monocrystalline photovoltaic system. The contractor must also renovate the boiler room, carry out the required finishing and earthing works, prepare the building energy certificate, commission and measure the installed systems, train the staff, and provide warranty-period servicing. Stage I must be completed by 28 February 2027 and Stage II by 15 June 2027. The tender deadline is 24 September 2026 at 10:00. Tenders must be submitted electronically, and the procurement is not divided into lots. The award criteria are price at 60% and warranty period at 40%; the minimum warranty is 60 months. The successful bidder must provide performance security equal to 5% of the gross tender price.