About us
D:4 emerged in 1998 from a collaboration between Marcus Nitschke and Jörn Focken.
For over 25 years, we have been dealing with architecture, monument preservation and the sustainable management of large real estate portfolios. Our interdisciplinary team works in Berlin, Hamburg, Krems and Tirana. We support you with planning and consulting in every phase of the architectural process. In addition to classic construction projects, we are also involved in the fields of art and culture.
Our services
Architecture and design
As a general planner, we combine innovative planning technologies such as BIM with sustainable design. Our portfolio ranges from interior design to comprehensive project implementation, especially for public contracts. We design projects such as kindergartens and natural swimming pools according to ecological principles and in a way that conserves resources as much as possible. BIM optimizes construction processes and reduces resource consumption to create buildings that are future-proof and sustainable.
Building in the existing stock
With a deep understanding of traditional building methods and modern techniques, we are committed to preserving the cultural heritage and at the same time creating new possibilities for use. In doing so, we place particular emphasis on fine-tuning the balance between the historic building stock and modern requirements - as well as with the relevant authorities.
Consulting
Feasibility study - Real estate consulting - project management - Community consulting - subsidies - project management
We offer comprehensive advice on project management and prepare feasibility studies to check the viability of your projects. We also support parishes in restructuring their building stock and help public and private clients to apply for funding.
Art and culture
Exhibitions - Lectures - Coworking Tirana
In our architecture gallery Treppe b, we regularly present exhibitions on post-war modernist architecture. We publish texts on the subject in the publishing house of the same name. Our coworking space in Tirana also offers a creative space for collaboration and the exchange of ideas on the subject of architecture.
Our team
Our interdisciplinary team specializes in sustainable construction, heritage conservation and consulting services relating to construction, conservation and sustainable real estate planning.
Julia Lindemann
M.Sc. Building Research and Historic Preservation
Jan Trappmann
M.Sc. Architecture
Linda Schönfeld
Office Administrator
Cordula Heintze- von Baeyer
Tenders and project management
Become a part of D:4
Apply for one of our vacancies or send us your speculative application to jobs@d-4.de
- To the job offers
Locations
Berlin
Stubenrauchstraße 7
D-12161 Berlin
T +49 30 8599425-10
bueroberlin@d-4.de
U + BUS Friedrich-Wilhelm-Platz
Hamburg
Haubachstraße 74
D-22765 Hamburg
T +49 40 3890497-40
buerohamburg@d-4.de
S + BUS Holstenstraße
Diversity
Fairness in everyday office life
In 2024, we worked with the company Same but Different to shed light on diversity in our team. How do our employees feel represented? Do we deal sufficiently with discrimination in our day-to-day work? We first asked these questions in a survey and then evaluated them in a workshop.
Memberships
Awards
St. Luke's Church, Munich
3rd. Prize in the invited competition, 2016
St. Martha Church, Nuremberg
3. Prize in the invited competition (no 2nd prize awarded), 2015
Heilig-Geist-Kirche, Pinneberg
2. Prize in the invited competition, 2014
St. Judas Thaddäus Tower, Berlin-Tempelhof
Refurbishment concept for the listed building, Artheon Prize 2014
Maria Gnaden community center, Berlin-Hermsdorf
Reinickendorfer Bauherrenpreis 2012
Realization 2010-2011
1st place in the invited competition, 2008
Exhibition concept "Space and Religion" on church building since 1989
EU award as "best practice" of the Culture 2000 program, 2007
Selection as "best practice" Federal Chancellery of the Arts, Vienna 2007
Lehrter Strasse Center of the Berlin City Mission, Berlin-Mitte
1. 1st place in the invited expert procedure, 2005
Youth Meeting Center Ludwig-Wolker-Haus, Berlin-Kreuzberg
3rd place in the invited review process, 2004 3rd place in the invited expert procedure, 2004
Spreeloft, Berlin-Friedrichshain
1. 1st place in the invited expert procedure, 2002
St.E_New Media Church, Berlin-Mitte
2. 2nd prize in the international competition "Information Technology and Architecture", 2001, Royal Chamber of Architects Copenhagen (DK)
TIUS shelving system
Selected for the Berlin-Brandenburg Innovation Award, 2002
Awarded the Schleswig-Holstein Design Prize, 2003
Design Prize from AIT magazine, Cologne Furniture Fair, 2004
Nominated for the Design Prize of the Federal Republic of Germany, 2006
Gemeindesaal St. Andreas, Berlin-Friedrichshain
Selection of the Berlin Chamber of Architects "Da! Architektur in Berlin", 2002
Office building Lennéstraße 1, Berlin-Tiergarten
2nd place in the invited competition, 2001 2nd place in the invited competition, 2001
Web PMC
Winner of the competition "Multimedia information and communication technology in the construction industry" organized by the Berlin Senator for Economics, 2001
