Office | Profile

Markus Gnuechtel and Michael Triebswetter founded GTL Gnuechtel – Triebswetter landscape architects in 1991 in Kassel, the city of the world famous nature park, the upland called Wilhelmshoehe. GTL is also active in China, where there is, starting 2005, a shared Peking office with Rainer Schmidt landscape architects. In 2007 the opening of a further office location followed in Duesseldorf.

The owners’ credo: to realise innovative designs with best possible perfection in detailed planning and project management. Participating in numerous competitions – usually announced as pan-European competitions – gives the office the opportunity to constantly break new grounds in conceptual thinking and in the final realisation and presentation of its design ideas.

Numerous awards in competitions – among them 30 mostly highest awards, e.g. the internationally highly recognised first award for Pier 40 (with TECarchitecure, Los Angeles) in Manhattan, New York, and several national and international Landscape Design Awards reflect GTL’s constant thrive for the best possible result.

When competing for the design, which is contemporary, and complies with the planning task, the basic questions at the beginning and during the design process are, however, simple: What is the spirit of the location? Were there formal and historical ideas and concepts in the past, which are related to the task? Can these historical concepts be translated into contemporary concepts of shape and material? How is the design integrated in the cultural context? The human being is in the centre of all thoughts: his longing for beauty, his love of nature as well as of art, his need for calmness as well as for hurly-burly, for certain security and excessive surprise, the way he loves to revel in memories, as well as the need for integration in the cultural context of his time.
As the task differs from project to project by nature, the replies to the basic planning tasks must turn out differently, too. Committed to the clarity of modernity and to the poetry of garden design motives and surprising design in their materials and use of details, the subsequent projects show a representative profile from the works of GTL.

Michael Triebswetter

Dipl.-Ing. Landscape architect
Owner of GTL

michael.triebswetter@gtl-kassel.de | +49 (0) 561 – 78946 -38

Since 2017 Sole owner of GTL
2011-2012 Visiting Professor, University of Kassel
2008 Lectureship Technical University München-Weihenstephan
1994 Lectureship at GhK Kassel
1991 Founded own office GTL | Gnüchtel Triebswetter Landschaftsarchitekten
Until 1991 WES & Partner, Hamburg
Until 1988 Studied Landscape Architecture at Technical University, München-Weihenstephan

Sadik Deniz Akman

M.Sc. in Landscape Architecture
Project team member, competitions
Joined GTL in 2015

deniz.akman@gtl-kassel.de | +49 (0) 561 – 78946 -51

Until 2017 Studied for Master’s degree in Urbanism and Urban Planning, Technical University of the Middle East in Ankara
Until 2013 Studied for Bachelor’s degree in Landscape Architecture and Landscape Planning, Technical University of the Middle East in Ankara

Nour Alkhouri

B. Sc. in Landscape Architecture
Project team member, competitions
Joined GTL in 2018

nour.alkhouri@gtl-kassel.de | +49 (0) 561-78946- 37

Until 2014 Studied Landscape Architecture, American University of Beirut, Lebanon

Jule Benedix

M.Sc. in Landscape Architecture
Project team member
Joined GTL in 2015

jule.benedix@gtl-kassel.de | +49 (0) 561 – 78946 -24

Until 2018 Studied Landscape Planning and Landscape Architecture, University of Kassel

Philipp-Emanuel Brandt

M.Sc. in Landscape Architecture
Project team member
Joined GTL in 2016

philipp.brandt@gtl-kassel.de | +49 (0) 561 – 78946 -44

Until 2016 Studied Landscape Planning and Landscape Architecture, University of Kassel

Duy Phan Do

Student
Joined GTL as a student assistant in 2018

phan.do@gtl-kassel.de

Since 2017 Studying for Master’s degree in Landscape Architecture, University of Nürtingen-Geislingen
Until 2013 Studied for Bachelor’s degree in Architecture and Planning, National University of Civil Engineering, Vietnam

Lisa Elsner

M. Sc. Landscapearchitecture
Project team member, competitions
Joined GTL in 2019

lisa.elsner@gtl-kassel.de | +49 (0) 561 – 78946 -43

Until 2016 Studied Landscape Architecture, advanced technical college Ostwestfalen Lippe, Höxter

Betty Pixiang Fan

Master.-Ing. Art of landscape architecture
Project team member
Joined GTL in 2009

betty.fan@gtl-kassel.de | +49 (0) 561 – 78946 -33

Until 2008 Studied Landscape Architecture, Anhalt University of Applied Sciences, Bernburg, Germany
Until 2003 Studied Landscape Architecture, Sichuan Agricultural University, Sichuan, China

Taji Faqiri

Trainee
Joined GTL as a trainee draftsman in 2018

Mathias Gehring

M.Sc. in Landscape Architecture
Projects, competitions
Joined GTL in 2011

Mathias.gehring@gtl-kassel.de

Until 2015 Studied Landscape Planning and Landscape Architecture, University of Kassel

Yu Hao

M.Sc. in Landscape Architecture
Project team member, competitions
Joined GTL in 2014

yu.hao@gtl-kassel.de | +49 (0) 561-78946- 40

Until 2017 Studied for Master’s degree in Landscape Architecture and Landscape Planning, University of Kassel
Until 2010 Studied for Bachelor’s degree in Landscape Architecture, Beijing Forestry University, Beijing, China

Nicole Hohmann

State-accredited Business Economist
Accounting systems | Personnel management
Joined GTL in 2000

nicole.hohmann@gtl-kassel.de | +49 (0) 561 – 78946 -41

Since 2001 State-accredited Business Economist

Ruth Iloste

M.Sc. in Landscape Architecture
Project team member
Joined GTL in 2014

ruth.iloste@gtl-kassel.de

Since 2011 Studied Landscape Planning and Landscape Architecture, University of Kassel

Safiye Kelebek

Student
Joined GTL as a student assistant in 2016

safiye.kelebek@gtl-kassel.de

Since 2014 Studied Landscape Planning and Landscape Architecture, University of Kassel

Stefan Kettlitz

Landscape Architect AKH bdla
Project team leader, construction management
Joined GTL in 2016

stefan.kettlitz@gtl-kassel.de | +49 (0) 561 – 78946 -21

2013 – 2016 Chairperson of the Hessen Regional Association of the Federation of German Landscape Architects
Until 1997 Studied for Intermediate Diploma in Landscaping, Technical University, Munich-Weihenstephan
Until 1995 Studied Landscape Planning and Landscape Architecture, University of Kassel
Until 1984 Trained as landscape gardener, Berlin

Andreas Körbs

Landscape Architect
Project team leader, construction management
Joined GTL in 2017

andreas.koerbs@gtl-kassel.de | +49 (0) 561 – 78946 -45

Until 1988 Studied Landscaping, Technical College, Weihenstephan in Freising,specialisation: space-planning
Until 1983 Trained in gardening and landscaping

Lena Krumsig

Student
Joined GTL as a student assistant in 2018

lena.krumsig@gtl-kassel.de

Since 2014 Studied Landscape Planning and Landscape Architecture, University of Kassel

Sophie Kupka

Student
Joined GTL as a student assistant in 2016

sophie.kupka@gtl-kassel.de

Since 2013 Studied Landscape Planning and Landscape Architecture, University of Kassel

Melanie Lips

Architect
Competitions, Project leader
Joined GTL in 2012

melanie.lips@gtl-kassel.de | +49 (0) 561 – 78946 -24

Until 2003 Studied for Diploma in Architecture, Leibniz University, Hannoverr

Liming Meng

M.Sc. in Urban and Regional Planning
Project team member, competitions
Joined GTL in 2017

liming.meng@gtl-kassel.de | +49 (0) 561 – 78946 – 33

Until 2013 Studied for Master’s degree in Architecture, Brandenburg Technical University, Cottbus
Until 2012 Studied for Master’s degree in Urban and Regional Planning, Brandenburg Technical University, Cottbus
Until 2010 Studied for Bachelor’s degree in Architecture, Brandenburg Technical University, Cottbus
Until 2004 Studied for Bachelor’s degree in Visual Communication, University of Hangzhou, China

Eva Müller

B.Eng. in Landscape Architecture
Project team member
Joined GTL in 2017

eva.mueller@gtl-kassel.de | +49 (0) 561 – 78946 – 34

Until 2015 Studied Landscape Architecture, Nürtingen-Geislingen University
Until 2010 Trained as a gardener, specialising in gardening and landscaping

Sara Nejatianrad

M.Sc. in Landscape Architecture
Project team member
Joined GTL in 2017

sara.nejatianrad@gtl-kassel.de

Since 2015 Studied for Master’s degree in Landscape Architecture, College Anhalt, Bernburg, Germany
Until 2011 Studied for Bachelor’s degree in Industrial Design, University of Mashhad, Iran

Harald Noll

Architect
Project leader, project development
Joined GTL in 1998

harald.noll@gtl-kassel.de | +49 (0) 561 – 78946 -12

2015 Teaching assignment, University of Kassel
2003 Diploma in Architecture Part 2
1997 Diploma in Architecture Part 1
Until 1997 Studied Architecture, University of Kassel
Until 1994 Royal Danish Academy of Arts, Copenhagen
Until 1993 Architecture, University of Kassel

Katharina Reichmann

M.Sc. in Landscape Architecture
Project team leader
Joined GTL in 2017

katharina.reichmann@gtl-kassel.de | +49 (0) 561 – 78946-39

Until 2016 Studied Landscape Planning and Landscape Architecture, University of Kassel

Marcello Romano

Architect
Project team member
Joined GTL in 2019

Marcello.Romano@gtl-kassel.de | +49 (0) 561 – 78946-37

Until 2004 DEA in Architecture, Energy and Environment, University Politècnica de Catalunya BarcelonaTECH, Spain
Until 1999 Studied Architecture, Università degli Studi di Palermo, Italien
Until 1997 Studied Architecture, University of Kassel

Klaus Werner Rose

State-accredited technician for gardening and landscaping
Specialist in construction project management
On-site supervision
workes as on-site supervisor for GTL since 2002

info@kwrose.de

2005 Construction management studies, Bauhaus University, Weimar, while employed at GTL
Since 2001 Established own planning and construction management office, Lübeck
Until 1985 State-accredited landscape technician in gardening and landscaping
Until 1980 Master school in gardening, Kiel
Until 1972 Trained as gardener, Lübeck

Nils Schellenberg

Landscape Architect
Project team member
Joined GTL in 2019

Nils.Schellenberg@gtl-kassel.de | +49 (0) 561 – 78946 -24

Until 2011 Studied Landscape Planning and Landscape Architecture, University of Kassel

Sandra Sennhenn

Landscape Planner
Project leader
Joined GTL in 2010

sandra.sennhenn@gtl-kassel.de | +49 (0) 561 – 78946 -42

Until 2010 Studied Landscape Planning and Landscape Architecture, University of Kassel

Tina Stamm

Landscape Architect
Project team leader
Joined GTL in 2012

tina.stamm@gtl-kassel.de | +49 (0) 561 – 78946 -40

Until 2009 Studied Landscape Planning and Landscape Architecture, University of Kassel

Christian Thees

B.Sc. in Landscape Architecture
Project team leader, competitions
Joined GTL in 2010

christian.thees@gtl-kassel.de | +49 (0) 561 – 78946 -51

Until 2016 Studied Landscape Planning and Landscape Architecture, University of Kassel

Sibylle Triebswetter

Economist
Management
Joined GTL in 1999

sibylle.triebswetter@gtl-kassel.de | +49 (0) 561 – 78946 -10

Until 1995 Studied Business Management, University of Applied Sciences, Osnabrück

Pia Urban

Student

Joined GTL as a student assistant in 2018

Pia.Urban@gtl-kassel.de

Since 2016 Studying Landscape Planning and Landscape Architecture, University of Kassel

Ines Wodrich

Architect
Project Management
Joined GTL in 2001

ines.wodrich@gtl-kassel.de | +49 (0) 561 – 78946 -23

Until 2000 Studied Architecture, University of Kassel
Until 1992 Diploma studies and engineering qualification in Building Materials and Silicate Technology, University of Freiberg

Mingge Yu

Diploma in Design
Competitions, detailed design
Joined GTL in 2008

mingge.yu@gtl-kassel.de | +49 (0) 561 – 78946 -54

Until 2007 Studied Product Design, College of Fine Arts, Kassel
Until 2000 Studied at Luxun Art Academy, China

Yumeng Zhang

M.Sc. in Landscape Architecture
Project team member, competitions
Joined GTL in 2016

yumeng.zhang@gtl-kassel.de | +49 (0) 561-78946-22

Until 2017 Studied for Master’s degree in Landscape Architecture and Landscape Planning , University of Kassel
Until 2012 Studied for Bachelor’s degree in Landscape Architecture, Beijing Forestry University, China