In the cleanroom industry, Target Value Design is a rather new concept that has made its appearance a couple of years ago and originates from the ‘Target Costing’ approach of the lean construction methodology. Applying it in cleanroom technology requires a fundamental shift in thinking from expected costs to target costs. The focus of TVD is therefore to drive down the cost of a cleanroom project without reducing the quality of the final product or extending the planning. TVD aims to achieve this goal by setting cost as a design constraint rather than an outcome of design. Using this tool in our field of cleanroom applications, the design and construction of cleanrooms is steered towards the target cost. In our first whitepaper of 2022, we will zoom in on this attractive lean-management tool in the cleanroom industry and take it to a next level by linking Target Value Design to ABN’s approach of legolising cleanroom design & construction.