At B-architecten, B-bis & B-city, we use our passion for the design and development of spatial solutions to build a better society with the city as main target.


Back in 1997, Evert Crols, Dirk Engelen and Sven Grooten set up an independent office for architecture: B-architecten was born. The three had met during their education in Antwerp and Amsterdam. At the internationally oriented Berlage Institute, it became clear that Evert, Dirk and Sven shared a common design interest. Today, the office is located in Antwerp and Brussels.

Ten years after the foundation of B-architecten, they started a new initiative together with Sebastiaan Leroy: B-bis architecten became an office that focuses on small architectural projects, residential interior design, offices and shops, scenographies for exhibitions and performing arts, temporary installations and furniture design.

In 2020, B-city was launched as a third B-platform with the aim to shape and supervise complex urban projects. The core of its ambition is to work on large-scale projects that carry the potential of becoming new city districts.

Today, B-architecten, B-bis and B-city have naturally grown into an office of more than 70 people. Each B-team has its particular focus and way of functioning, yet they all share a distinct innovative view on the variety of projects the B-platforms stand for.

©Ilse Liekens

What we do

At B-architecten, B-bis and B-city, we believe that every single person can make a positive difference in life. We use our passion for the design and development of spatial solutions to build a better society with the city as main target.

We do more than develop buildings: we are a platform of talented designers who want to have an impact on the urban planning policies and improve the quality of life in doing so. Design is our core business – from door handle to city district – but we equally invest in innovative research, we publish and debate, teach at different universities, take our own initiatives and seize opportunities to push the boundaries of our profession.

For us, a better living environment can be achieved by urban densification. It will allow an optimized mix of experience, concentration, sustainability, quality, equality, human scale and technology. To achieve this we trust the power of our platform and the clever alliances we forge with complementary partners.

Every project is an opportunity to question, investigate and try out. We dare to question the question, we add to its value and let the design stem from the solution in a logical, but equally surprising way. All our projects are therefore unique. We deploy the knowledge and experience we have built over the years as a source of inspiration for new colleagues and other talents.

We are dreaming pragmatics, eager about tradition with respect for the future.

How we work

In 2017, our office transformed from a traditional top-down business model to an organisation that is focused on self-managing employees who are heavily involved in the decision making.

Today, we are a close group of workers who carry a shared responsibility for the entire company process – internally and externally. We do not speak in terms of positions or tasks, but instead, there are roles and objectives. Everyone has their own autonomous responsibilities. One employee can fulfill one or several of these roles, for every one of which goals and expectations are determined after consultation with other members of the team.

Important assets of this organisational structure are the division of power, clear agreements and transparent consultation structures. They make the engine of the mechanism. In this self-managing business system we share knowledge and make decisions based on mutual advice in the entire company’s interest.

Yet, we believe well-being is just as important as prosperity. That’s why we have a rich tradition of well-developed team activities, such as a daily healthy lunch for all employees, snacks, pilates lessons on Wednesdays and the monthly B-café, where we invite external speakers to give a lecture. Every year we go on a day trip to B-projects in the implementation phase and in the month September we always go on a two-day trip. The working year is traditionally closed with a BBQ in the courtyard of our B-office.

Who we are

General management

Sven Grooten
architect, founding partner, general director
+32 3 231 82 28


Tine Delbare
financial director
+32 3 302 43 32

Operations, HR & IT

Klaas Adriaensen
architect, personnel manager & operational director
+32 3 302 43 70

Reflection room

Evert Crols
architect, founding partner
+32 3 231 82 28

Revit room

Hans Bogaert
BIM coordinator

Technical platform

Dirk Engelen
architect, founding partner
+32 3 231 82 28


Gerda Swinnen
office manager
+32 3 302 43 32


Laura Bonne
+32 3 302 43 30


Arati Van Hoof
administrative assistant
+32 3 302 43 32



Hanne De Vos
architect, project leader
+32 3 270 05 89


Stéphanie Collier
engineer architect, team leader
+32 3 302 43 69


Dirk Engelen
architect, founding partner
+32 3 231 82 28

Team leaders

Sebastiaan Leroy
interior architect, founding partner B-bis, teamleader B-bis
+32 3 270 05 87

Project leaders

Astrid Eyskens
architect, project leader
+32 3 302 43 63

Charlotte Stes
architect, project leader
+32 3 270 05 88

Joachim Moens
architect, project leader
+32 3 302 43 65

Katerina Harnack
engineer architect, project leader
+32 3 302 43 33

Otsoe Verdonckt
architect, project leader
+32 3 302 43 40

Pieter-Jan Grillet
architect, project leader
+32 3 270 05 86

Project architects

Eline Cooman
architect, project architect
+32 3 302 43 72

Eloïse Van Meensel
architect, project architect
+32 3 302 43 68

Louise Boone
architect, project architect
+32 3 302 43 54

Mathilde Jacobs
architect, project architect
+32 3 302 43 71


Astrid Eyskens - Charlotte Stes - Dirk Engelen - Eline Cooman - Eloïse Van Meensel - Evert Crols - Joachim Moens - Katerina Harnack - Louise Boone - Mathilde Jacobs - Otsoe Verdonckt - Pieter-Jan Grillet - Sebastiaan Leroy - Sven Grooten


2021 - Nomination Res Awards, category 'residential development' - Qville

2021 - Shortlist VRP Planningsprijs, category 'afgerond planningstraject' - Turnova

2021 - Nomination Brick Awards - Erasmus University College

2021 - Nomination Brussels Architecture Prize, category ‘large intervention’ - Centr’Al

2021 - Nomination Brussels Architecture Prize, category ‘small intervention’ - Station of Laken

2021 - Belgian Building Award, category Circular Building - Mundo-a

2020 - Nomination Brick Awards - Depart

2019 - Gilbert Van Schoonbeke Award - Turnova master plan

2019 - ARC19 Architecture Award - Mundo-a

2019 - Laureate Publica Awards, category heritage & architecture - Station of Laken

2019 - Laureate Jo Crepain Award, most innovative architecture office

2018 - FEBE Elements Awards, category Precast in Buildings - Turnova tower

2018 - Laureate Staalbouwwedstrijd, category utiliteitsbouw - Het Moment

2018 - Honourable mention Bis architecture competition, theme 'herbestemming' - Het Moment

2018 - Laureate Onroerenderfgoedprijs - Het Moment

2017 - Publica Awards, bronze in the category ‘city planning’ - Turnova master plan

2017 - Onroerenderfgoedprijs - Boterberg

2016 - Laureate Brussels voorbeeldgebouw (Be-Exemplary) - Centr'Al

2014 - Nomination Staalbouwwedstrijd - De Grote Post

2013 - Laureate Vlaamse Monumentenprijs - De Grote Post

2011 - Nomination Prix de la Maîtrise d'Ouvrage Publique, category 'promotion de l’approche intégrée' - L28

2007 - Laureate Brussels voorbeeldgebouw (Be-Exemplary) - L28

2003 - Award van de Belgische architectuur - Anyplace

2003 - Award van de Belgische architectuur - BSBbis

1999 - Antoon van Dyck Award, most promising architecture office

Our office

How to get here

By public transport

B-architecten, B-bis and B-city are located within walking distance of the Antwerp Central Station. There are several tram and bus stops close to our offices.

If you’re using a Velo city bike, look at the map for the nearest Velo station. You can put your own bike safely in the bicycle sheds on our office terrain.

By car

Parking your car in the streets may prove difficult and expensive. When you do, don’t forget to buy a ticket!

We advise you to use the underground car park of the Antwerp Central Station by entering ‘Van Immerseelstraat 2’ in your navigation system. It only takes a five minute walk from the car park to our offices.