C5-01 – 2

Since June 2022, Anja Rosen and Frauke Kaven formed C5 to creatively support the building industry with sustainability for more climate and environmental protection, sufficiency, circular economy, building culture and positive spaces.

Anja Rosen

Prof. Dr.-Ing. Architect and
DGNB Auditor

Combining science and practice, Anja brings innovative directions into each project and supports builders and planners to plan to sustainable buildings. As a founding member of the re!Source Stiftung e.V. and active member of the DGNB, she is committed to a resource turnaround in the construction industry.

AR

Biography

2022

CO-MANAGING DIRECTOR C5 CREATIVE CONSULTING FOR CIRCULAR AND CERTIFIED CONSTRUCTION
Founding of C5 GmbH with Frauke Kaven

2021

HONORARY PROFESSOR
University of Wuppertal Teaching position for Circular Construction

2013 – 22

CO-DIRECTOR & DGNB AUDITOR
energum, sustainable construction group in the agn group

Auszeichnung

2022

URBAN MINING DESIGN RATHAUS KORBACH
Finalist Deutscher Nachhaltigkeitspreis Architektur

2021

URBAN MINING INDEX
DGNB Sustainability Challenge,
Category: Research

2020

ATLAS RECYCLING (co-author)
Hans Sauer Award

Frauke Kaven

Dipl.-Ing. Architect and
DGNB Auditor

With many years of international experience in architectural and strategic planning of educational and healthcare buildings, office and administrative buildings, as well as urban quarters, Frauke supports the area of certification and competition support.

FK

Biography

2022

CO-MANAGING DIRECTOR C5 & DGNB AUDITOR CREATIVE CONSULTING FOR CIRCULAR AND CERTIFIED CONSTRUCTION
Founding of C5 GmbH with Anja Rosen

2015 – 21

MÜNSTER 
agn Niederberghaus & Partner GmbH / energielenker projects GmbH


2007 – 15
 

NEW YORK
Perkins Eastman Architects

2009 

LEED
Associate Professional

2003 – 07

SHANGHAI
Arquitectonica / Mada Spam LLC / BAU Brearley Architects & Urbanists

Christina
Freese

aspiring Dipl.-Ing. Architecture and
DGNB-Consultant

With a focus on sustainable building and construction, Christina consolidates her studies of architecture with her master thesis „The sustainable use of building materials. A study on the deconstructability of wood-concrete composite slabs“ at the Graz University of Technology in cooperation with Brüninghoff GmbH & Co. KG. Her great inquisitiveness drives her actions. As a graduate, Christina already has academic and professional experience in Germany, the Netherlands, Austria, Spain, Israel and the USA. With us she oversees certification and is on her way to become DGNB auditor.

CF

Publishings

Featured Image
Urban Min­ing Design in der Prax­is …
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Gespräch : Anja Rosen und Marc Matzken. Urban …
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von Annette Hille­brandt, Petra Riegler-Floors, Anja …
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Die Ökonomie des Urban Min­ing Das Mod­ell­pro­jekt …

Memberships

DNGB‑1
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C5 makes it easier to build sustainably. We offer creative consulting for circular and certified construction.

C5 GmbH
Bült 13
48143 Münster
+49 251 37.977.366

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