Construction project for public-use facilities in the Castronuño–Vega del Duero Nature Reserve

Summary

The tender concerns construction works to improve public-use infrastructure and trails in the Riberas de Castronuño–Vega del Duero Nature Reserve in Valladolid. The project is financed by the European Regional Development Fund, is not divided into lots, has an estimated value of EUR 424,340.94 excluding VAT and a total budget of EUR 513,452.54 including 21% VAT. The works must be completed within six months from signing the site-setting-out and commencement report. Bidders must demonstrate annual turnover of at least EUR 636,511.41 in the contract field in their best year among the last three available financial years, and experience with major works in the relevant classification subgroup during the last five years. They must submit a compliant technical proposal, construction plan, environmental and waste-management plan, and a financial offer. The financial offer is worth up to 60 points, the warranty extension up to 10 points, and the qualitative technical criteria require at least 20 points. Offers may be treated as abnormally low when the discount exceeds the average discount by more than 5 percentage points. The definitive guarantee is 5% of the final offered price excluding VAT; an additional 1% guarantee applies to offers initially presumed to be abnormally low. A EUR 100,000 civil liability insurance policy must be submitted before contract signature. A site visit was scheduled for 17 September 2026 at 09:30, with the meeting point at the pharmacy in Torrecilla de la Abadesa, Valladolid; attendance confirmation was requested by email.