Ghilardi+Hellsten 2020

Ellen Hellsten

Company Director / Architect
+47 90 05 99 15 /


Graduated with a Diploma from the Norwegian University of Science and Technology in 1997 and a post-professional Master degree from Harvard University in 2001. After practicing in New York City, she returned to Oslo in 2003 and taught at the Institute of Urbanism at Oslo School of Architecture for several years while simultaneously founding the office. Ellen has extensive experience in city planning and urban design, and is engaged in the development of complex urban projects. Ellen also holds several committee memberships, among other the chair of the Advisory Committee on Architectural Quality in Oslo.

Franco Ghilardi

Company Director / Architect 
+47 97 10 32 37 /

Franco received his degree in Architecture from Universidad Catòlica de Còrdoba, in Argentina in 1996 and at the Harvard Graduate School of Design with a post-professional Master degree in 2001. He has acquired extensive professional building experience working for Thompson & Rose Architects in Cambridge, Machado Silvetti in Boston, Pei Cobb Freed & Partners / SOM in New York City and Spacegroup in Oslo. Franco has taught at both The Oslo School of Architecture and Design and at the Bergen School of Architecture. 

Erik Stenman

Partner / Architect
+ 47 40 21 53 74 /

Graduated from The Oslo School of architecture and Design in 2007 with a master degree in Urbanism and Landscape Architecture. He also studied at the UWE in England, the Shibaura Institute of technology in Japan, and received a bachelor degree in Design of Built Environment in Vasa, Finland. Erik has design expertise on large-scale landscape urbanism projects that demands high level of cross-disciplinary engagement and conceptual thinking. He is currently project leader for the new masterplan and development of Kiruna.

Thomas Hellsten

CEO & Commercial Manager
+47 91 64 00 80 /

Thomas is responsible for the administrative and commercial tasks in our company. He has more than 20 years of experience as Commercial Director with focus on international B2B sales & marketing and business development.

Thomas holds a bachelor in Chemistry from Høgskolen i Østfold.

Henrik Flåte Poulsson

Partner / Architect
+ 47 98 81 97 12 /

Henrik Flåte Poulsson graduated from The Oslo School of Architecture and Design / ETSAB Barcelona in 2014. During his studies he worked for three years with Spacegroup Arkitekter, and collaborated with Superunion, before starting at Ghilardi+Hellsten in 2014. Henrik has worked with a variety of projects in the office, ranging from exhibition design, to urban design projects and several competitions. He is currently project leader for the hotel and office project at Hasle.

Andreas Wold

+47 45 29 89 96

Andreas graduated as a chef in 2009 after his aprentice time in Arakataka and Ylajali. He also has worked at Eik Annen Etage, Bagatell, Tango, Feinschmecker and the last 5 years as head chef at Restaurant Fjord. He got a scholarship to travel around the world visiting local markets and restaurants. He also graduated as sommelier in 2018. 

Anna Maria Grossi

+47 47 84 64 38

Anna Maria received her Master degree in architecture and urbanism from Delft (NL), with a Thesis on the urban redevelopment of South Chicago, and her Bachelor degree at Politecnico di Milano. During her studies she has been working in Italy and Switzerland on small scale projects and competitions.Before joining Ghilardi+ Hellsten in 2017, she worked for two years at Nordic, gaining experience on different scales and programs in all phases.

Antonio Pérez Cerpa


Antonio graduated from Escuela Técnica Superior de Arquitectura de Sevilla in 2018 with a master’s degree in architecture. He also studied in Graz University of Technology and had various work experiences while studying. Before joining Ghilardi + Hellsten, Antonio worked at Adept in Denmark. He has also been involved in several awarded competitions as an independent architect.

Federico A. Iannarone

+47 91 70 90 31 /

Federico graduated in 2017 with a Diploma from the Alta Scuola Politecnica, a first Master of Architecture from Politecnico di Milano and a second Master’s degree from Politecnico di Torino. Previously, he earned a Bachelor of Architecture with honors from Politecnico di Milano, studied at the Oslo School of Architecture and attended the Kazuyo Sejima’s Advanced Design Course. Before joining Ghilardi+Hellsten in 2017, Federico collaborated with various Milanese offices as freelance architect and with IT companies as product designer.

Heleri Nõmmik 

+47 41 18 75 06 /

Heleri graduated from The Oslo School of Architecture and Design in 2013, following her Bachelor studies in Architecture and Urban Planning at The Estonian Academy of Arts. She has experience from several offices in Oslo such as MDH and A-lab, where she was working on complex buildings from competition phase to completion. Heleri started at Ghilardi+Hellsten in 2018 as a project architect on a hotel and office project in Hasle.

Henriette E. Stuen Hammer

+47 97 77 24 10 /

Henriette graduated from NTNU in 2005. She has experience from several large offices in Oslo such as Dark Arkitekter, Hille & Melbye and A-lab, where she was part of executing complex projects. Henriette started at Ghilardi+Hellsten in 2014 as a project architect on Stranden 1, Aker Brygge. She has extensive knowledge about passive house standards and is in charge of the environmental research and competence in the office. Henriette is also a certified BREEAM Accredited Professional. 

Jessica Vetere

Interior Designer 
+47 94 19 29 37 /

Jessica is an interior designer who graduated in 2018 with a Masters of Science in Interior Design from Politecnico di Milano and one in Systemic Design from Politecnico di Torino, in addition to a Diploma from the Alta Scuola Politecnica. Beforehand she worked as a web designer for the Italian Stock Exchange Commission and designed as a freelancer various events/graphic projects in the Milan metropolitan area. In 2016, some of her works have been exhibited at the Triennale Expo Gate in Milan and at the Venice Biennale session.

Jing Niu

+47 96 75 10 32 /

Jing Niu graduated from Politecnico di Milano in 2019. Previously, she got a bachelor of Architecture from The Xi’an University of Architecture and Technology. During her studies she engaged in workshop with Sejima and worked for several offices, including  BIG. Jing has been an important piece in multiple large scale projects and competitions as a member of Ghilardi+Hellsten.

Léa Avellana 

+47 98 19 05 96 /

Lea studied at the Oslo School of Architecture and Design and the ENSA Paris La Villette from where she graduated with honors in 2014. Before joining Ghilardi+Hellsten in 2017, Lea worked at Dark Arkitekter and JMarkitektkontor on various projects, from competition phase to completion. Her experience ranges from large scale urban developments to housing projects with a focus on typology research. From 2015 to 2018, Lea acted as leader of the Oslo Arkitektforening Cultural Committee, coordinating conferences and cultural events in Oslo.

Roman Kekel

+47 99 88 28 22 /

Roman graduated from The Oslo School of Architecture and Design with a strong emphasis on architectural and natural heritage through experimental preservation methods. Roman has previous experience from working in several art and architecture institutions such as OMA/AMO in Rotterdam or Fait Gallery in Brno. He worked as an assistant for Oslo Architecture Triennale and as a coordinator of The OAT Academy.

Thyra Fredrikke Grimstad

Landscape Architect
+47 92 46 29 14 /

Thyra graduated with a Master of Arts in Landscape Architecture from Writtle University College in 2017, and holds a bachelor’s degree from the Norwegian University of Life Sciences (NMBU).

She has worked at the RHS Chelsea Flower Show, as well as participated in various workshops and the Europan15 competition.

Before joining Ghilardi + Hellsten in 2020 she worked as a landscape architect for Studio NSW.

Zheng Zhou

+47 46 57 20 07 /

Zheng Zhou graduated from AHO in 2019, winning the Statsbygg student award with his diploma project. He previously got his bachelor degree from The Xi'an University of Architecture and Technology. During his studies Zheng worked for several offices, including OMA and Ghilardi+Hellsten. Zheng was a central member of the team that won the Hasle K4 competition in 2017, and is a versatile asset for the office.  

Uku Miller

+47 92 14 48 54 /

Uku completed his Master’s studies at the Oslo School of Architecture and Design in 2017, following his Bachelor studies in Architecture and Urban Planning at The Estonian Academy of Arts. Before joining Ghilardi+Hellsten in 2017, Uku worked at SAAHA in Oslo since 2015, as well as internships with Enric Ruiz-Geli at the Barcelona based e-cloud9 and MDH in Oslo, adding up to three years of professional experience next to his studies, focusing mostly on competition development, form finding and communicating concepts.


Office dog


Vilde Vanberg

+47 95 85 58 76 /

Vilde has a bachelor degree from Oxford Brookes University where she graduated in 2014 doing her dissertation on the redevelopment plan for Kiruna. She received her Master Degree in 2018 at the Oslo School of Architecture and Design. During her studies she has worked at Meinich Arkitekter and Karakusevic Carson Architects in London. She has engaged in several workshops with Architecture Sans Frontières -UK in both Africa and South-America to explore participatory design methodology in urban planning.

Team since 2005

From 2021: Andreas Wold From 2020: Thyra Fredrikke Grimstad, Andreas Vold, Karina Falconett. From 2019: Antonio Perez Cerpa, Jing Niu, Thomas Hellsten. From 2018: Kristoffer Strand, Heleri Nõmmik, Roman Kekel, Karlis Jaunromans, Jessica Vetere, Maria Brox, Vilde Vanberg. From 2017: Lovise Bårdsnes Bjørnstad, Uku Miller, Vibeke Orsten, Paul-Antoine Lucas, Zlatko Nikolic, Bui Quy Son, Anna Maria Grossi, Federico A. Iannarone, Diogo SousaOlesya Vodenicharska, Léa Avellana, Changkun Ma, Hana Svatos-Raznjevic, Zheng Zhou, Christiana Pitsillidou. From 2015: Emil Pira, Einar Elton Jacobsen. From 2014: Gunvor Bakke Kvinlog, Henrik Poulsson. From 2013: Henriette Elisabeth Stuen Hammer, Nicolas Croze, Mathias Kempton, Angela Gigliotti, Fabio Gigone, Per-Leif Bersvendsen, Emil Modéer, José Luis Figiozzi. From 2012: Silje Kolltveit, Børge Opheim, Matthias Bergsvik, Alexia Lozana Ruis, Alexander Reene From 2011: Paola Simone, Anniken Hustad Tharaldsen, Espen Vatn, Andrea Pinochet, Manuel Angel Carmena Zazo, Hogne Øye Sætre. From 2010: Kasia Furgalinska, Lars Bakke. From 2009: Einar Rohde, Sindre Salquist Blakar. From 2008: Pau Canals, Joao Vieira Costa, Staphanie Sixt. From 2007: Ida Winge Andersen, Cathrine H. Bjørnstad, Johanne Borthne, Carl Julius Claussen, Llaitzer Planas, Morten Gundro Adamsen, Sindre Grønli. From 2006: Erik Stenman, Espen Krogstad, Anna Nilsson, Andreas Tingulstad, Sondre Solheim, Magnus Ohren. From 2005: Ellen Hellsten, Franco Ghilardi, Tim Prins, Daniel Ferdman, Wilhelm Christensen.

Client portfolio


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General inquiries 

Adresse: Møllergata 12 , 2nd floor, 0179 OSLO
Tlf: + 47 22 33 99