Circular Construction and Interior Design.

As designers with a profound understanding of sustainability, we combine your need for tangible brand spaces with the architectural challenges of climate-friendly, humane and environmentally positive buildings, areas and living spaces.

3D Printing PrototypingInventory AnalysisBrand SpacesExperienceCircular EconomyDesign andMaterial ConceptData processing/BIMEnergy Resource EfficiencyGreen BuildingTerritory and NeighbourhoodDevelopmentClimate AccountingMobility ConceptUtilisation Cycle AnalysisSustainability StrategyUtilisation ConceptMaterial flow design/Cradle to Cradle®Taxonomy................ArchitectureSustainabilityConstruction

The market for CO₂-neutral, climate-neutral, and circular construction is rapidly growing and becoming one of the largest in the world. As a consulting and innovation service provider in sustainable development, decarbonisation, cradle-to-cradle, and life-cycle product design, we possess the necessary expertise to serve this future market. Together with our creative flair as a brand-focused design agency, we can develop realisable solutions for many of the economic, ecological and social challenges of our time through architectural design, spatial and area concepts and promote a positive vision of the future.

Our goal is to design and model climate-friendly, humane, and environmentally positive structures upon which concrete architectural projects can evolve and be realised.


Brand Spaces


Experience Architecture


Cradle to Cradle® Architecture


Circular Architecture


CO₂-Neutral Building Concepts


Buildings as CO₂ depots

We advise architects, engineering offices, construction companies, building material manufacturers and project developers.

RITTWEGER + TEAM provides collaborative and co-creative design and architecture expertise with a focus on conceptualising and digitally modelling product life cycles, building concepts, decarbonisation strategies for processes, and the demand- and trend-based development of usage concepts. Our company is open to cooperating and participating in architectural projects or continuing an architectural practice that aims to develop this field.

In our projects, we incorporate the unique characteristics of each project, object, or location as a source of inspiration and innovation to shape architecture that expands human experiences while simultaneously enriching the natural and economic living environment.

Our strengths are:

  • Appreciation of what is presently existing
  • Interdisciplinary design processes
  • Intelligent design to create useful solutions
  • Design expertise for a circular economy
  • Material expertise for recyclable building components (Own material library with around 300 samples)
  • Forecasting future scenarios
  • Realistic, realisable innovation approaches
  • Process design for continuous improvements
  • Structural design for knowledge transfer
  • Economically feasible solutions

Project example: The CO₂-Depot holiday home, nominated for the Green Concept Award 2022

Our areas of expertise for collaborative and co-creative development of green and circular architecture projects include:

Service Phase 1 according to HOAI, Basic Evaluation

  • Current and existing analysis
  • Outline of development ideas
  • Evaluation of existing / neighbouring building / area development concepts
  • Development of conceptual approach and future vision for utilisation / area development
  • Outline of closed material cycles
  • Assessment of materials for recyclability
  • Research and selection of sustainable materials for buildings or interior design (Material Library CIRCULAR MATERIAL LAB)
  • Material and equipment concept according to Cradle to Cradle Certified™ product standard
  • CO₂ accounting of building materials
  • Modelling of CO₂-neutral buildings
  • CO₂ balancing of buildings, taking into account the entire life cycle
  • Preliminary design of material passports for the Madaster material register

Service Phase 2 according to HOAI, Preliminary Planning

  • Concept design
  • Cost estimate
  • Check for authorisation
  • Concept for the modular development of complex construction projects

Service Phase 3 according to HOAI, Design Planning for the Building and Interior Design, Outdoor Facilities

  • Digital design planning
  • 3D visualisation
  • Modelling via 3D printing
  • Preparation for handover for approval planning
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