RRRArchitecture emerged in 2023 from the office of Muck Petzet Architekten, with a focus on planning and consulting tasks of transformation, avoidance, redevelopment and circular building. We combine extensive experience in the redesign of existing buildings with more than 70 realized projects and the knowledge of intensive research in transformation strategies, impact assessment and sustainable design.

RRRArchitecture is a platform for an international network of specialists, architects, developers, engineers, publicists, economists, and scientists. We work together in project-specific teams to develop and implement solutions and strategies for various clients.


We all know the 3Rs, symbolized by the three arrows in the ubiquitous recycling symbol. The RRR system, or "waste pyramid," was developed to provide clear guidelines and a hierarchy of strategies in waste management. In this system, Reduce, or avoid, is always the best option. The second is Reuse as much and as long as possible. Recycle is seen as a last resort, an option to be used only when reuse is not possible.

With his German Pavilion at the 13th Architecture Exhibition Biennale di Venezia in 2012, Muck Petzet introduced this system into the context of architecture: Could there be a similar "truth" in dealing with existing architecture? Is the best intervention also the least intervention? Is the hierarchy of strategies of avoidance, reuse and recycling applicable to the transformation strategies of existing buildings? The exhibition defined existing architecture and its embodied potential as a crucial resource for our future and promoted an affirmative attitude and a new understanding of the role of architects.

→ reduce-reuse-recycle.info

Today, these concepts are widely accepted - but there is still a large gap between rhetoric and action. We therefore advocate that the RRR system be made the basis of the legal framework for the built environment.


Teresa Athayde
Alice Bidorini
Giulia Biondi
Paolo Catrambone
Nicolas Fajt
Lorenzo Giordano
Florian Jennewein
Maximilian Kimmel
Ferdinand Knecht
Emma Koppel
Korbinian Luderböck
Annalisa Massari
Caterina Moro
Alessandro Pasti
Muck Petzet
Tatjana Saraco
Gresa Shehu
Mathieu Wellner
Arina Yanovych
Yifan Zhang


The main office of RRRArchitecture is in Berlin. But we also have branches and local presences in: Milan, Mendrisio, Munich, Trieste and Venice.


RRRArchitecture GmbH i.G.

Böttgerstrasse 16 D—13357 Berlin
e: contact(at)rrr-architecture.com
t: +49 (0)30 311 63 454

Bilder: © RRR / Future Documentation / EO, Muck Petzet Architekten

The copyright of the photos and illustrations used on this page belongs to the authors. The use of these is only possible after consultation with the authors. Please contact us for this purpose. We will refer you to them.


Subject to the German regulations § 5 TMG:

RRRArchitecture GmbH i.G.

Landwehrstrasse 37
80336 München
+49 (0)89 59 99 49 20

CEO: Muck Petzet, Ferdinand Knecht

Commercial Register: Amtsgericht München HRB i.G.

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