Renovation of the Halde Hoheward Horizon Observatory in Herten – Demolition and Dismantling Works

Summary

The tender concerns the renovation of the Horizon Observatory on Halde Hoheward in Herten, specifically the complete demolition and dismantling of the existing steel structure and its auxiliary supports, including sorting, transport, reuse and disposal of materials. The existing foundations and anchor connections must be protected so they can be reused for the future structure. The contractor must also prepare the dismantling concept and verifiable dismantling calculations, provide qualified structural engineering supervision, and protect the surrounding platform, traffic routes, environment and adjacent structures. The planned start of the planning and construction services is 1 November 2026. The bid deadline is 12 October 2026 at 11:00. Price is the only award criterion. Bids must be submitted electronically through the procurement platform; alternative bids are not permitted and the contract is not divided into lots.