103_Rammed hemp house
A house made from hemp straw and rammed clay. The shape of the building was adapted to the materials and the existing garage was integrated into the ensemble. Towards the street the building is closed and solid, towards the garden it opens up and forms a symbiosis with the garden landscape.
An expansive shelf structure is a vertical exhibition space, play garden, field of experimentation, meeting space and vertical park as well as playground at the same time. How can an envelope structure connect a building with the surrounding park while leaving both free to develop?
066_new greenhouse ensemble
A new building that is born from the union between historical elements of the park and new construction technologies to generate exhibition spaces without interior-exterior limits, managing to house different climatic zones that define and determine the footprint of the project.
059_DNA of learning
At the center of the competition site, the new education center will create a new focal point at the northern end of Europaallee. The new building is arranged in such a way that the existing development along the Europaallee is complemented by the urban planning. More information can be found here...
The idea that defines this lofts is upside down. Instead of having the functions such as bathing, storing, cooking and working centrally arranged, open living spaces are placed in the middle. The living room extends over the center to all four outer sides and this creates exciting spatial connections. Through niches and generous dormers at the end of each "arm", some intersting views arise.
The new TAZ building is taking on the egalitarian and non-hierarchical mindset of the renown left-oriented editing and publishing house, and reinterprets this approach spatially anew. Consequently, rather than using isolated floor plates, all employees are seated on “one level”.
The site on Herdenstraße in Zurich is characterized by a large private and community garden area. This green area will be extended onto the site, however, the extended ground will be levelled up to a small “green hills” allowing galleries and retail to ‘hide’ below. More Information here...
013_S82_a modern tree top house
A new self contained flat was meant to be designed in the roof space of an 1905 "Gründerzeit" villa in Berlin. The spacious maisonette living with at least 4-5 rooms had to be integrate into the roof while preserving the street view and its historic appearance. More information can be found here...
Dipl. Ing. Architect (BDA / AKB / ARB)
Dipl. Ing. Architect (BDA / AKB)
Who we are
rundzwei is a modern architectural office by the two founders Andreas Reeg and Marc Dufour-Feronce. rundzwei considers Research and Design as two central parameters for a sound sustainable and modern architectural understanding, which combines space, materiality, resources, local history and natural environment with a sophisticated design.
Before founding rundzwei Marc Dufour-Feronce and Andreas Reeg held leading positions working for international renown offices such as Herzog & de Meuron, LAB architecture studio and ACME in, Switzerland, the UK and the UAE. The project experience ranges from masterplans, housing towers, museums and exhibition spaces, shopping centres to residential units.
rundzwei consist of a team of architects and Engineers in freelance and full-time employment, which sketch, design, research, plan and control. Together we accomplish architecture with character and high quality.
Alexandru Isan, Enrique Mesia, Italo Celiento, Irene Modica, Kejwan Gross, Miriam Wierzchoslawska, Roberta D'Alessandro, Sophie Dufour-Feronce, Agata Klein, Christine Huber, Gesa Falkenburg, Jakub Spaniel, Luca Di Carlo, Anastasiya Kozina, Miriam Lopez, Matthias Rühl, Johann Göhler, Ana Domenti, Andrian Fernandez, Raimon Espasa Bou, Lou Pelosoff, Paulin Sensmeier, Michelle Bähr, Sunghoon Go, Marie Nägele, Asya Güney, Constantin Blömer, Hannah Clemens, Johann von Weiss, Isabel Karge, Shadi Zaghloul, Hanna Reckenthäler, Deborah Matter, Sophia Hölscher, Paolo Bradicic, Pavlo Zabotin, Marielena Hickmann, Magdalena Baraniak, Mareike Beumer, Katarzyna Cichecka, Lillie Ritter, Karim Omar.
What we believe in
rundzwei believes that contemporary architecture depends on the development of coherent design concepts which work not only on paper, but even more so in reality. Our design concepts are the product of a thought-through research process which integrates space, materials, local history and contexts. While we aim to contextualise architecture we challenge the existing, reinterpret modernity and explore the unexpected. rundzwei filters and focuses the relevant potentials and qualities of each project to create innovative and unconventional solutions in a new contemporary form. This leads to unexpected concepts that often go beyond the scope of the actual brief and positively affect and enhance the final goal of each project and client.
We believe that sustainable architecture starts with the concept and should not exclusively rely on costly ex-post technical solutions. Therefore rundzwei integrates architectural solutions to reduce energy consumption and heat gain into the design concept of the built environment before enhancing them through technology.
What we offer
rundzwei works on a broad range of projects from all fields of contemporary architecture, urban planning, interior and product design. Through our conceptual and research based design approach we have become the perfect partner for densification on complex sites in urban areas. We are working with private, corporate and public clients and offer the full spectrum of design services. The conceptual design strength of rundzwei is rounded up through an extensive network of partnering offices and consultant firms which enable us to offer the full spectrum of architectural services from feasibility studies, concept design, energy consultancy through to construction management, documentation, sales brochures and websites. By collaborating with foreign architectural and engineering offices we ensure that the high quality of our concept and design for international projects is realised up to the built project and beyond. This way every client’s individual needs can be satisfied through our trusted network.
We offer researched based concept driven architecture and work in close exchange with our clients. Together with the client we form the brief and the parameters of each individual project. Our designs are informed by local references, user group studies, sustainability, materiality as well as cost efficiency and local regulations.
The first interpretations of the clients brief are deepened and the concept strength enhanced by further development and collaboration with the client and the authorities. We offer all design services up to the planing application. On international level we tend to team up with specialist partners from our broad network of collaborators depending on location and size of the project.
We offer the full range of construction documents on a national level. For large scale projects and on international level we collaborate with specialist partners.
Tendering and Construction Supervision
For smaller projects we are the perfect partner to provide tender documents and specifications. We help the client with the tendering and contracting of construction firms and control the correct execution on site.
For larger projects this phase is covered by our partnering offices or by the clients choice of main or general contractor. rundzwei offers the architectural site supervision and oversees the tender process.
Joined Private Client Projects "Baugruppen"
rundzwei offers service for private client groups that enable the realisation of large scale housing and social projects. We help in the formation of the groups and their members, offer advice on site acquisition and make first feasibility studies. After formation of the group and the acquisition of a site rundzwei offers the full spectrum of architectural services to these “Baugruppen”.
Who we work with (employees and collaborators)
Together with LOOM for all topics around digital & media and Stoffers/Steinicke as full blood designer we share our 800m² creative Loft-Office, the Entrance B. This generates a perfect symbioses of design lovers and enables us to provided services to our clients beyond the architectural scope.
Where we work (office impressions)
02 Feb 2023
Iceberg nominated for Building of the Year Award 2023
Our Project Iceberg has been nominated for the archdaily Building of the Year Award 2023. On the Archdaily website (link on the picture) you can vote for the Iceberg until 23 February. We are happy about the nomination and hope for numerous votes for our Iceberg.
23 Jan 2023
HIDDEN TIMBER CLAD GARDEN HOUSE COMPLETED
On the site in Berlin-Lankwitz, an existing villa was to be complemented by a garden house in an unobtrusive manner. The exterior design of the semi-recessed new building is based on the surrounding small tree population. The simple cubic volume is clad with vertical thermowood strips.
23 Jan 2023
FIRST USER MOVED IN THE TIMBER HAT
After 2 years, the time has finally come: the first users of our timber hat are moving into the new building in Rottenburg. Ergenzingen. The employees of the family-owned company Hald&Grunewald can look forward to bright, light-flooded office rooms with lots of visible wooden surfaces and a spectacular view of the surroundings of Ergenzingen.
30 Sep 2022
Award for Pergola House
Pergola House awarded at Houses of the Year Award 2022.
09 Sep 2022
HM Pergola House
The Pergola House received a Honorable Mention at the IAA 2022.
28 Mar 2022
CALL FOR DONATIONS
On this occasion, we call on you to support the Ukrainians and to follow the appeal for donations by ARD and Aktion Deutschland hilft!
10 Mar 2022
The wood is here and it's about to go fast!
10 Mar 2022
From 12 March to 9 April, the DA! Exhibition - Architecture in and from Berlin of the Berlin Chamber of Architects is taking place.
06 Mar 2022
Four terraced houses in wood-straw construction.
03 Mar 2022
The roof extension becomes elegant due to its enormous room height and narrow width.
31 Jan 2022
The Depth of the Surface
On Tuesday, February 1, Andreas Reeg will give a short lecture on "Surfaces - ecological, functional, emotional" as part of AiT's Dialog nach 6 series.
19 Jan 2022
H&G Construction Progress
The roof structure of the hall of the new factory and office building span over 18 meters.
16 Nov 2021
The CO₂-neutral housing estate is the result of an intensive analysis of the existing structures.
20 Aug 2021
The 78 by 36 meter base plate of our Timber Hat is currently being reinforced and can then be poured.
15 Feb 2021
rundzwei in 6th place!
rundzwei is among the six best residential construction offices in the construction network ranking!
15 Jan 2021
Construction start timber
Our 4,900m² project near Stuttgart is in full swing.
24 Dec 2020
and a Happy New Year wish rundzwei architects.
25 Sep 2020
The Iceberg at bba
Click here to read the full article.
26 Aug 2020
On 26.08.2020 our office directors Andreas Reed and Marc Dufour-Feronce took part in an conference organized by the PropertyCom community in Zurich. In this event they had the chance to talk about one of the most singular projects of our office and the award-winner, Cork Screw House.
If you wanna find out more about the project, click here.
13 Aug 2020
We are happy to announce the longlisting of our project The Iceberg for the Dezeen Awards in Housing Project category.
28 Jun 2020
Tag der Architektur 2020
The Open Doors’ day, planned on June 27th at 14:00-18:00 will be cancelled, due to the Pandemic.
The Pfeddersheimer Weg 6 construction site visit, which will take place on June 28th, will continue as planned.
15 Jun 2020
DAM Award 2021
We are happy to announce the nomination of our project “the Eisberg“ to the DAM Awards 2021. A prize that has been awarded to outstanding buildings in Germany over the years.
Within weeks, the juri will shortlist a selection of 20 projects among which we hope our project to be.
12 Jun 2020
11 Jun 2020
We need your help at the public voting!
Vote for us!
Click here to vote.
04 May 2020
FIRST LOOK AT OUR LATEST
Our most recent construction project is a refurbishment and extension of a single family house located in Spandau, Berlin.
16 Apr 2020
PW6 topping-out in corona
As tradition demands, we celebrated the topping-out last Thursday, April 16.
15 Apr 2020
Our office looks good when it’s empty, doesn’t it?
13 Apr 2020
PW6 KEEPS GOING!
Despite the current pandemic, the timber construction is progressing in fast forward!
23 Mar 2020
For prevention and responsibility, the rundzwei Architekten team has decided to switch to remote work and is already set up and fully operational. Our activities continue as usual.
19 Mar 2020
We are pleased to announce our participation in the PropertyCom 2020 talk program where, under the motto “Bauen gegen den Klimawandel: Verantwortung für mehr Lebensqualität” we will talk about cork as a sustainable building material and the specific use we make of it in relation to our home Cork Screw House, a residential building in Berlin.
07 Mar 2020
ARCHITEKTUR IN/FROM BER.
From 7 mars until 4 april 2020 will take place for the 21st time, the exhibition “da! Architecture in and from Berlin ”. 60 selected projects with diverse and creative solutions will be exibited in the stilwerk Berlin.
We are glad be selected for the exposition with one of our most recent projects and would like to encourage you all to visit the exibition. The access is free.
07 Feb 2020
German Design Awards 2020
The winners of the German Design Award 2020 will be honored at the award ceremony on February 7, 2020, on the opening day of the Ambiente trade fair in Frankfurt am Main.
After the award ceremony, all visitors are invited to visit the winning exhibition “Excellent Architecture”: In the Museum Angewandte Kunst, Frankfurt am Main. Opening on February 7th at 6 p.m. Open from 07.-23. February 2020.
20 Dec 2019
We would like to say thank you to our clients, colleagues and friends for the successful year.
We wish you a Merry Christmas and a Happy New Year!
22 Nov 2019
German Design Awards 2020
The German Design Award only prizes projects which truly represents pioneering contributions to the German and international design landscape. Therefore we feel very proud of, not only winning this prize but getting the gold qualification that represents the best of its category!
04 Nov 2019
Surface Design Awards
The Cork Screw House is selected as one of the 39 finalists in the global competition in two different categories, “housing exterior” and “housing interior”.
This award recognise and celebrate the best use of innovative surface materials in architecture and design from across the globe.
The winners will be announced during the Surface Design Show at London’s Business Design Centre on 13.02.20.
21 Oct 2019
Last week, on the occasion of our recent incorporation to BDA, we went to the “Deutsches Architektur Zentrum” as speakers to talk about rundzwei, its origins, best known projects and the future that lies ahead.
17 Oct 2019
The construction of PW6 h
We are happy to announce that few weeks ago started the construction of one of our latest projects located in Berlin.
16 Oct 2019
NEW IN THE CLUB
Due to our recent affiliation with the BDA, we have been invited as speakers to an event on 16.10.2019 where we will talk about the work of our firm regarding different topics with Elena Potratz, editor of the magazine “der architekt” .
This event will be held in the German Architecture Centre (DAZ) at 7:00pm.
11 Oct 2019
House of the year 2019
We are proud to have been selected among the 50 best single-family houses of the year 2019 with our Cork Screw House.
04 Aug 2019
We are training now!
Since few weeks, we have incorporated a new member, from Syria, as an apprentice into our team. In the next years he will learn at rundzwei the profession of draftsman!
08 Jul 2019
Dezeen Awards 2019
We have the honor of being longlisted with our Cork Screw House for the house of the year within the category Urban house.
The projects will be judged by leading architects like Frida Escobedo and Sou Fujimoto and the results will be announced in September.
30 Jun 2019
Unfortunately, for reasons beyond our control, the visit to the Cork Screw House, scheduled for Saturday June 29 at 12:00 and at 13:00, has been cancelled, we apologize for the inconvenience.
On the other hand, we are still offering the tour of the project located at Wilhelmshavener Straße 66 at 12:00 and at 13:00 on Sunday, one of our most recent finished projects.
Looking forward to seeing you there!
26 Jun 2019
After the nomination of the Cork Screw House for the material competition, last Wednesday June 26th we attended the awards ceremony in Stuttgart where we achieved a very satisfactory second prize.
05 Jun 2019
Construction in change
Last June we were invited to the eighth event promoted by Brüninghoff, under the name “Construction in change”, aimed to shed light on current challenges and future changes in the construction industry and providing solutions.
24 May 2019
Pecha Kucha (20x20)
Twenty images and twenty seconds of explanation for each of them (20x20). This is the premise of Pecha Kucha, a direct way to present “without ornamentation”, getting to the point.
17 May 2019
MaterialAward 2019 winner
Our Cork Screw House is winner in one of the three categories material, application and material usage of the MaterialAward 2019. To keep the tension high, the exact placing and the category will be announced at the gala event on the 26th of June 2019 in Stuttgart, Germany.
07 Apr 2019
rundzwei accepted to BDA
We celebrate with our two principales who have been affiliated with the Federation of German Architects (BDA). It is a high recognition for the quality architecture that we try to deliver every day.
04 Apr 2019
Living Forum 2019 Talk
Andreas Reeg of rundzwei was invited to speak at the Living Forum 2019 in Praha about sustainable and modular construction. The Cork Screw House and the Wilhelmshavener Straße were received with great interest.
19 Dec 2018
Merry Christmas 2018
23 Nov 2018
The facade's panels of our Berlin-Moabit project have been entirely installed.
20 Nov 2018
SCREW IT Lecture
Rundzwei lecture at TU Braunschweig
23 Oct 2018
Topping out ceremony
Rundzwei celebrated the topping out ceremony in the Hausburgstraße.
01 Oct 2018
7th Cork Confernce
Anderas Reeg presents corc screw house in Lisbon.
10 Sep 2018
Aluminium facade grows...
The facade caldding of the Wilhemshavener Straße project is being mounted.
08 Jun 2018
Make City Festival
Rundzwei was this year at MakeCity Berlin with 035_WHS66 and 042_LivingSpiral.
02 May 2018
Prefabricated timber elements were assembled at the fassade.
26 Apr 2018
Cork shell completed
The cork cladding of the cork screw house is finally completed.
11 Apr 2018
The final countdown for the last work on our project 042_Korkenzieher Haus is running.
23 Feb 2018
The prefabrication process of the facade elements for our project 035_WHS66 started.
16 Jan 2018
rundzwei @ "MakeCity"
From June 14th to July 1st 2018 rundzwei was at "Make City Berlin - das Festival für Architektur & Andersachen"!
22 Dec 2017
Happy Hollidays 2017
rundzwei wishes you a Merry Christmas and Happy New Year 2018!
18 Dec 2017
The installation of the cork facade on our project 042_Living Spiral has started!
08 Dec 2017
035_Topping out ceremony
We celebrated the end of 2017 with the topping out ceremony of our project 035_WHS 66 in Moabit.
03 Nov 2017
042_Topping out ceremony
We are happy to announce that the topping out ceremony of our project 042_Living Spiral has taken place.
27 Oct 2017
033_Topping out ceremony
We had the "topping-out" ceremony for our project in Berlin Nikolasee!
19 Sep 2017
Progress of 042_LS
The timber structure of the 042_Living Spiral took its right place and was prepared to be clad in cork!
11 Aug 2017
FIRST TIMBER FLOOR IN WHS
The first timber floor from our building in Wilhelmshavener Str. (Moabit) was done.
28 Apr 2017
Conversion in Nikolassee
The roof conversion of a 19th century in Berlin-Nikolassee has started. The roof is being transformed into a a modern spacious loft apartment.
14 Mar 2017
You can find our projects 042_Corkscrew House and 022_LightCloud now published in the book "Berlin Design Digest".
10 Feb 2017
Conversion in Mariendorf
Our house conversion project began to take shape.
24 Jan 2017
Topping out ceremony
We had the 'Topping out' ceremony of our project in Samariterstraße!
10 Jan 2017
042_Corkscrew house and 022_LightCloud publications in Berlin Design Digest 2017.
13 Dec 2016
Aufgang B Metamorphosis
The 4th floor of Aufgang B is in a metamorphosis process. More on the renovation to come here soon.
29 Sep 2016
Conference Cork in Lisbon
rundzwei was invited to participate on the 6th International Cork Conference in Lisbon.
03 Jun 2016
During the 2016 Nachtschicht - Berlin Design Night - we showed our exhibition "runzwei - Models in Progress".
01 Apr 2016
Opening of GYNAEKOLOGIKUM
The GYNAEKOLOGIKUM opened its doors on April 1st.
01 Jan 2016
A Happy New Year
rundzwei wishes a Happy New Year!
23 Nov 2015
rundzwei is apointed to design the new headquater of Arcardis Berlin. 2600m² office space will be created. More to come soon.
21 Oct 2015
We have made the final presentation for our 8000m² residential invited competition proposal.
24 Aug 2015
The 2nd prototype of the LightCloud selection, the H2O2-molecule has been finished and as given us further insight for optimisation.
12 Jun 2015
Design Night 2015
rundzwei participated at the 2015 NACHTSCHICHT - BERLIN DESIGN NIGHT.
23 Mar 2015
S82 at day of architectur
S82_a modern treetop house was selected for the national day of architecture 2015.
23 Dec 2014
Happy New Year 2014
We thank all our clients and collaborators for the trust and joint work in 2014.
25 Nov 2014
S82 Grand Opening
rundzwei is glad to anounce the grand opening of our S82 Project.
30 Apr 2014
S82 takes on shape
The steel frame flew in by crane. For the first time the dimensions of the new roof were shaping.
14 Apr 2014
rd2 shortlistet for TAZ
rundzwei was selected as one of 7 young offices out of 310 applicants to design a new headquarter for the German Newspaper TAZ.
03 Apr 2014
ODEEH Opening at BIKINI
rundzwei has completed its works on the first ODEEH Store in Berlin.
19 Jun 2013
1. Price for rundzwei
rundzwei has won the 1. prize in an international architectural competition in the ME.