Welcome to a°blue

Who we are:

a°blue is a joint venture of green building expert atmosgrad°, one of the premier sustainability auditors for real estate in Germany; and pbr AG, one of the largest planning firms, with over 400 architects and engineers and ten offices all across Germany. Our team is headquartered in Hamburg and provides expertise on projects all over Germany and Europe.

  • Building physics

    Building physics

    thermal, acoustics and light

    We do calculations and simulations according to the European directive for energy efficiency, we calculate building and interior acoustics and we simulated daylight within buildings. 

  • Building Performance

    Building Performance

    monitoring, energy audits, green due diligence

    We support real estate owners and property managers in their task to operate buildings efficiently with a focus on energy savings and minimizing all consumption related cost. Enhancing transparency is a first step to implementing a sustainability strategy.

  • Sustainability


    green building certification, LCA, LCC

    Our sustainability concepts rely on detailed knowledge of building materials and expertise in life cycle analysis. Life cycle costing is an integrated part of our green building projects.