Extension Shell Construction New Building

This tender by Stiftung Deutsches Optisches Museum (Jena, Germany) seeks a contractor for concrete carcassing, masonry, steel construction, and waterproofing works for the extension of the German Optical Museum. It is an open procedure with a single lot, EU-funded, and requires electronic submission via subreport.de by 2026-07-22. No estimated value is provided. Eligibility requires at least three reference projects from the last five years involving extension of a listed building (min. 1,500 m² BGF) and precast concrete facade with exposed concrete class SB3 (min. 100 m²). Award criteria are not specified in the provided data.