Daniel Villar San Juan


Since 2020, Daniel Villar has been managing CL ECO - in close cooperation with CL MAP GmbH.

Daniel brings experience from various engineering offices and holds several licenses for green building certifications (LEED AP, WELL AP, DGNB Auditor, DGNB ESG-Manager). He has been working in the sustainability sector since 2013 and is an expert in life cycle assessments as well as material ecology and life cycle cost analyses. He is also familiar with the perspectives of building owners, property supervision, architects and sustainability consultants from previous professional positions. This gives him the necessary understanding for successful consulting in the difficult planning and construction process.

Johannes Wieser
Pascal Hartlage


Johannes Wieser and Pascal Hartlage have a wide know-how in sustainable construction and are DGNB consultants.

Johannes is an expert in life cycle assessment and project life cycle considerations.
Pascal stands out for his expertise in reducing CO2 emissions in massive building constructions.

Furthermore, together with CL MAP, the CL ECO forms a comprehensive network both in terms of planning and construction management, project management or urban planning.