Leonard Grosch
Managing Partner Creative Director

Leonard (*1973) knew that he wanted to become an architect while still at school. Following an apprenticeship in Munich as grower of perennial plants he decided to study landscape architecture at Technische Universität Dresden. His love for Scandinavian design brought him for one year to the Royal Danish Academy of Fine Arts in Copenhagen before he obtained his diploma at Technische Universität Berlin. In 2003 Leonard joined Atelier Loidl as competitions manager. After the inauguration of the Park am Gleisdreieck, he co-authored the book `Designing Parks` together with Constanze A. Petrow about strategies for the successful design of urban parks in large cities. Since 2006 Leonard is partner and managing director of Atelier Loidl. He is responsible for design and customer acquisition.

Bernd Joosten
Managing Partner Office Director

Bernd (*1966) was shaped by the environmental movement of the 1980s. For seven years he worked in gardening, landscaping and finalised his years as a craftsman receiving the title of master craftsman from the Gartenbauschule (school of horticulture) of the Chamber of Agriculture of North Rhine-Westphalia in Essen. 1994 Bernd moved to Berlin. He studied landscape architecture at Technische Universität Berlin where he met Prof. Hans Loidl and became his employee in 1996. During his first years with Atelier Loidl Bernd was responsible for detailed design, contracting and construction management. Later on he lead projects and competitions. After Hans Loidl left the practice Bernd became partner and managing director in 2004. He has since then, been responsible for the development of the practice and for establishing it as a well-recognised company in the field.

Felix Schwarz
Managing Partner Technical Director

Felix (*1971) came to landscape architecture while working for a garden and landscaping business. He studied at Technische Universität Berlin and, having received his diploma, worked as project leader and office manager for Weidinger Landschaftsarchitekten. Looking for a challenge he was given the opportunity to take on the planning of Park am Gleisdreieck for Atelier Loidl in 2007. After some years as project leader Felix is now partner and managing director. He is responsible for conceptual and detailed design as well as for project realisation. In 2022 Felix was appointed to the Academy of Arts Berlin, section of architecture.

Martin Schmitz
Managing Director and Competition Leader

Martin (*1986) at first wanted to become a teacher, but spontaneously decided to study landscape architecture at the HfWU Nürtingen-Geislingen. During his master's degree at TU Berlin, he worked at Hahn Hertling von Hantelmann Landschaftsarchitekten. In 2013 he won the AIV Schinkel Prize and the following year the Peter Joseph Lenné Prize. Martin loves concept work and is particularly interested in projects with ecological and social ambitions. He has been at Atelier Loidl since 2013 and manages the competitions there. At the LU Hannover, Martin taught in the Landscape Architecture and Design Department and is a guest critic at various universities.

Leonard Grosch
Leonard Grosch
Bernd Joosten
Bernd Joosten
Martin Schmitz
Martin Schmitz
Felix Schwarz
Felix Schwarz

Carole Blessner
Member of the Management Board and Project manager

Carole (*1978) completed an apprenticeship as landscape gardener before enrolling in landscape architecture at Hochschule für Technik Rapperswil. She worked for Hager Partner AG in Zurich and from 2006 on as project leader for A24 Landschaft. Carole sees projects through all phases and concentrates both on design and technical detailing. She likes a challenge in the field of communication and particularly loves plants. Carole has been a project leader at Atelier Loidl since 2016 and has been supporting the management since 2024.

Anna Kristina Heenes
Human Relations

Anna (*1976) studied social sciences in Hannover and media consulting at Technische Universität and Humboldt Universität Berlin (diploma). She worked for a training programme for European filmmakers, Foodwatch, a political communications agency and in online marketing. She trained as a systemic coach at Coaching Akademie Berlin. Today she works as a freelance consultant for vermittelpunkt in Berlin. In 2015 she joined Atelier Loidl.

Tabea Quaas
Project team

Tabea (*1997) first trained as a landscape gardener in Mannheim before beginning her studies in landscape architecture. Her passion for craft creativity and connection to nature led her on her path. Inspired by her time as an intern at Atelier Loidl, she stayed in Berlin and has since joined the project team as a student assistant. Tabea's passion is in creative design, a passion for plants and creating social and sustainable spaces.

Carole Blessner
Carole Blessner
Tabea Quaas & Anna Kristina Heenes
Tabea Quaas & Anna Kristina Heenes
Andreas Lipp
Andreas Lipp

Andreas Lipp
Project manager

Andreas (*1977) served his alternative civilian service at the biological research station of a nature reserve. Afterwards he completed an apprenticeship as landscape gardener. From 2001 on he studied landscape architecture and open space planning at Fachhochschule Osnabrück. A work placement with Stephan Bernard Landschaftsarchitekten brought him to Berlin, and later to Atelier Loidl. Andreas was involved in the project Park am Gleisdreieck from 2006 up to the inauguration of the park. Since then, he has used his knowledge and expertise for future large-scale projects - such as Quartier Baakenhafen and Quartier Elbbrücken in Hamburg. Since 2005 Andreas holds the position of project leader at Atelier Loidl.

Pia Mastrantonio
Project team

Pia (*1982) studied architecture at PUC de Valparaíso and worked for Carreño Sartori Arquitectos in Santiago de Chile. She was awarded a scholarship to study in Italy where she received her master's degree in landscape architecture at the University of Florence. Subsequently she moved to Berlin and worked for TOPOTEK 1. Pia joined Atelier Loidl in 2017 as project team member.

Irina Brune
Project manager

Irina (*1974) studied landscape and open space planning at Leibniz Universität Hannover. Having obtained her diploma in 2001 she worked for six months in Cape Town. Her plan was to move for one year to Llangadfan in Wales in order to work for Camlins Landscape Architects as project team member. She stayed there for nine years. In 2010 Irina moved to Berlin and started working as project leader for Atelier Loidl.

Pia Mastrantonio & Irina Brune
Pia Mastrantonio & Irina Brune
Ulrike Brinsa
Ulrike Brinsa
Reyhan Güvenç
Reyhan Güvenç

Ulrike Brinsa
Project manager

Ulrike (*1980) found her way to design from Photography. After training with a photo specialist she studied landscape architecture at Technische Universität Berlin where she received her diploma in 2009. Ulrike was intrigued by large-scale design with a tactile appeal in the real world. She could pursue this interest while working as project leader for Landschafts.Architektur Birgit Hammer and Rainer Schmidt landschaftsarchitekten und stadtplaner. Ulrike joined Atelier Loidl Leas project leader in 2016.

Olympia Tomczyk
Project manager

Olympia (*1990) decided against studying astrophysics and studied landscape architecture at Universität Kassel instead. What remains of her first interest is her attention to detail and a liking for large-scale projects. Having received her bachelor's degree she left Hesse and obtained her master's degree in landscape architecture at Technische Universität Berlin. Olympia worked for Latz Riehl Partner Landschaftsarchitekten and for k1 Landschaftsarchitekten. She joined Atelier Loidl in 2018 as project leader.

Olympia Tomczyk
Olympia Tomczyk
Michael Gareis
Michael Gareis
Sumika Aizawa
Sumika Aizawa

Sumika Aizawa
Project team

Sumika (*1981) studied a bachelor's degree in sociology and environmental policy in Kyoto. Taking part in a student exchange programme she spent two years of her studies in Germany where she obtained a master's degree in landscape architecture at Technische Universität Berlin. While still at university and after her graduation she worked for SINAI Landschaftsarchitekten. Sumika joined Atelier Loidl as project team member in 2018.

Michael Gareis
Project team

Michael (*1983) developed his interest in nature and landscape planning through a sustainable reforestation project in Southeast Asia. This experience, together with his enthusiasm for design, his love for drawing and his curiosity for spatial relationships, led him to study. During a stay in the Philippines, he worked on a sustainable sustainable rural development project and in a landscape architecture office. At the TU Berlin he gained experience as a student assistant and research assistant in the field of landscape architecture and open space planning and found his way to Atelier Loidl in 2010. He is responsible for design and implementation planning and attaches great importance to detailed design implementation.

Arabella Knegendorf
Project team

Arabella (*1996) has always been interested in influencing the future with her work. She studied landscape and open space planning at the Leibniz University of Hannover and the University of Applied Sciences and Arts Rapperswil. During her studies she worked for Kortemeier Brokmann Landscape Architects. After completing her bachelor's degree, she moved to the TU Berlin in 2021 to pursue a master's degree in landscape architecture. Arabella is inspired by the diversity of Berlin. Her passion for research-based design and her interest in conceptual work continue to guide her at Atelier Loidl. She has been supporting the projects as a working student since 2022 and will complete her Master's degree at the TU in 2024.

Arabella Knegendorf
Arabella Knegendorf
Alexei Gross
Alexei Gross
Robin Tammer
Robin Tammer

Alexei Gross
Project manager

Alexei (*1961) studied landscape architecture at California Polytechnic State University in San Luis Obispo (USA). After receiving his diploma Alexei trained as sculptor in San Francisco and moved to Italy where he worked as an independent artist in Pietrasanta. Afterwards he toured the continents for a couple of years before he decided to settle in Europe for good. Alexei worked as project leader for MPFP in New York and for Lützow7, Ariane Röntz and hutterreimann in Berlin. Being an all-rounder he feels at home with all work phases. Alexei joined Atelier Loidl in 2016 as project leader.

Robin Tammer
Competition team

Robin (*2000) spontaneously stood in front of the door of Atelier Loidl in 2020 to attend a voluntary 3-month pre-study internship. He liked it so much that he decided to study landscape architecture at the Berlin University of Applied Sciences. The desire to design and plan social spaces where people can meet and feel comfortable attracted him to landscape architecture as much as his enthusiasm for sports. In 2022 during his bachelor's degree, he came back for his required internship and has been a part of our competition team as a student assistant since 2023. In the competition, he particularly enjoys the diversity of tasks and topics, while always keeping an eye on the other work phases.

Nico Blaser
Project manager

After his training as a construction engineer and planner, Nico (*1988) found his way to landscape architecture through travels and longer stays in various cultures around the world. He is particularly attracted to the possibility of creating diverse places in the city and in nature, where people can meet and be with each other. After graduating with a degree in Landscape Architecture from HSR Rapperswil in 2017, he gained his first experience in design and competition planning in Sydney at ASPECT Studios and in Zurich at Haag LA. In search of new perspectives, he was drawn towards Berlin, where he dedicated himself to the planning for the Parkbogen Ost in Leipzig, among other projects, as a project associate at SINAI from 2019. Since 2023, Nico has been working as a project collaborator at Atelier Loidl.

Nico Blaser
Nico Blaser
Pascal Zissler
Pascal Zissler
Hugo Rial
Hugo Rial

Pascal Zißler
Competition team

Pascal (*1992) did an apprenticeship as landscape gardener in Deggendorf where he was involved in the realisation of large-scale public projects. He started studying landscape architecture at Technische Universität Berlin (bachelor) and was the winner of the Peter-Joseph-Lenné-Award 2016. In 2021, Pascal graduated with a Master's degree in Landscape Architecture from the TU Berlin and has since the beginning been a creative head of our competition team.

Hugo Rial
Project team

Hugo (*1987) studied architecture at the Universidad Politécnica de Madrid, specializing in urban planning and environment. Inspired by the natural landscapes of his home region of Galicia in Spain, he decided that the next step in his career would be to become a landscape architect. After working in various offices in Berlin, including SINAI, and some freelance projects, he specialized in 3D design and BIM. He joined the Atelier Loidl team in May 2023.

Harald Müller
Project manager

Harald (*1973) studied at Technische Hochschule Berlin after serving his alternative civilian service close to Stuttgart and received his diploma. While still at university he worked for Frank von Bargen Landschaftsarchitektur. Spending a work placement semester in the company led to his employment after finishing his degree. From 2003 on Harald worked for TOPOTEK 1, holding the position of project leader since 2006. He was mainly involved in detailed design, contracting and construction management. After 15 years of extensive experience he was looking for a new challenge. The high quality of detailing in Park am Gleisdreieck and Quartier Baakenhafen caught his attention and brought him to Atelier Loidl. Being a practical person, he is happiest working on the work phases 5 to 9. He pays particular attention to technical realisation. Since 2018 Harald holds the position of project leader at Atelier Loidl.

Harald Müller
Harald Müller
Marlena Hellmann
Marlena Hellmann
Jeroen Stroetzel
Jeroen Stroetzel

Jeroen Stroetzel
Project team

Jeroen (1992) has been interested in the full spectrum of spatial planning since a young age, which led him to pursue a bachelor's degree in architecture and then a master's in landscape architecture at the Technical University of Delft. During his studies, he worked in Amsterdam and Zurich. After graduating, he completed the Spatial Traineeship Rotterdam and gained experience in four different design offices over a period of two years. The search for a synergy between culture and nature is a recurring theme in his design approach. Jeroen has been working at Atelier Loidl as a member of the project team since 2023.

Marlena Hellmann
Project team

Marlena (*1994) studied economics after school and then worked at KPMG. She enjoyed the analytical and structured work, but in the long run she lacked creativity and sustainability in her job. In 2018, she decided to make her long-held dream come true and switched to studying landscape architecture at the Technical University of Munich. During this time, she gained practical experience in various offices and at the Chair of Sustainable Urban and Rural Development. She completed her Master's degree with distinction at the Bartlett School of Architecture (UCL) in London in 2023. Since the beginning of 2024, she has been part of the Atelier Loidl project team - and is happy every day that she took this step.

Ziad Sayeed
Competition team

Ziad (*1993) studied architecture in Bangladesh. Influenced by Bengali modernism in architecture and driven by a passion for designing open spaces, he continued his studies in Germany, graduating with a Master's degree in Landscape Architecture from the Anhalt University of Applied Sciences in 2022. In the same year, he was awarded the Diesing Prize in the AIV Schinkel Competition. Ziad gained two years of experience at Grieger Harzer Dvorak Landscape Architects before joining Atelier Loidl as part of the competition team in 2023.

Ziad Sayeed & Dorothee Krause
Ziad Sayeed & Dorothee Krause
Mareike Thadeusz
Mareike Thadeusz
Leonard Schmidt
Leonard Schmidt

Dorothee Krause
Project team

Dorothee (*1968) lives on the Lower Rhine, is a trained carpenter and studied interior design in Darmstadt and product design in Krefeld, where open space design increasingly became a topic. After graduating in 2003, she worked for two years at Büro Penker in Neuss. Already in 2007 Dorothee joined Atelier Loidl in Duisburg/Solingen and worked in particular on the implementation planning for the RheinPark Duisburg. Her enthusiasm for good forms and her weakness for technically clever solutions find their satisfaction here.

Mareike Thadeusz
Team assistant

Mareike (*1979) comes from the Ruhr area and studied European Ethnology and History in Berlin and New York. She worked at Humboldt University Berlin, as a tour guide for American educational travelers, as a copywriter and journalist, before opening a children's toy and book store in Kreuzberg in 2018. In 2021, she started as an office manager at the Berlin architecture firm Kinzo and has been working at Atelier Loidl since 2024.

Michal Bolerázsky
Project team

Michal (*1986) studied garden and landscape architecture in Brno (Czech Republic) after attending the school of horticulture in Pistyan (Slovakia). After completing his master's degree, he moved to Berlin in 2014 to study for his doctorate. He quickly realized that science was not his thing. Instead, he gained valuable experience, first as an intern, then as an employee at Lavaland / Treibhaus, and discovered what really suits him: practice! In 2015, he joined SINAI Landscape Architects, where he immersed himself in all project phases and discovered his passion for implementation planning - with a special eye for detail and a talent for clever, technical solutions. He has been contributing his experience and creativity to the Atelier Loidl team since January 2024.

Michal Bolerázsky
Michal Bolerázsky
Lukas Diem
Lukas Diem
Elisa Stellacci
Elisa Stellacci

Elisa Stellacci
Project team

Elisa (*1980) studied architecture in Ferrara (Italy), graduated in 2006 with a Master's degree in Architecture and then worked in different architecture offices in Italy. With a garden therapy project "Flora et Labora" in the south of Italy 2011 Elisa discovered her love for landscape architecture. Since then she combines these two disciplines in her projects. In 2013 she got an EU fellowship for her work on vertical gardens and moved to Berlin. Elisa worked at SINAI and geskes.hack landscape architects before joining Atelier Loidl as a project team member in 2021.

Lukas Diem
Project manager

Lukas (*1987) discovered a deep interest in urban design through his enthusiasm for street skateboarding. He gained his first professional experience during his studies and was able to contribute his knowledge to the planning of several skate parks. After a long trip through Australia, Lukas moved to Munich and worked there for 6 years at mk.landschaft, where he was able to achieve competition successes in addition to managing challenging projects. Lukas has been in Berlin and part of the Loidl team since 2024.

Katharina Rüter
Project manager

Katharina (*1980) received her Diploma in Architecture 2009 from the Technical University of Berlin. She discovered her love for landscape architecture during her diploma thesis. She has since designed squares and parks for public and private clients in Germany and abroad. Over the years she has been sticking to her passion for architecture, design and nature as well as her interest in climate-neutral planning and construction. After several years as a freelancer, Katharina has been project manager at Atelier Loidl since 2019 and is a landscape architect.