CityTools sprl

47 rue du Houblon
1000 Bruxelles
TVA : BE 0886 924 448
Belfius BE 37 0682 4701 0628

Mathieu Berger

+ 32 473 80 43 68

Antoine Crahay

+32 486 29 47 95

Nicolas Hemeleers

+32 478 51 16 76

Citytools - Métiers de la ville

CityTools is a private agency, offering strategic consulting in sustainable urban planning.

Leaning on a significant experience in urban policies and public decision, CityTools facilitates projects faced with the ever growing complexity of cities.

Fostering an interdisciplinary, contemporary and prospective approach, CityTools offers a new vision of urban planning today.


The expertise of CityTools covers three complementary fields :


Design, planning, strategy, management, urban planning and environnemental regulations


Urban metabolism, sustainable neighbourhoods, green buildings, energy, urban agriculture, water, waste, resilience, circular economy


Social cohesion, social aspects of planning, appropriateness of public spaces and facilities, liveability of housings, buildings and neighborhoods.


Facilitating the city

Complexity of urban issues

The situations in which urban projects are developped are by essence multidimensional involving urban, economical, cultural, social and environnemental issues. Thanks to its interdisciplinary team, CityTools facilitates the comprehension of the various dimensions of a project and proposes relevant and efficient solutions.


Institutional complexity

Urban projects today are going through a very complex institutional process. The urbanistic and environnemental regulations are constantly evolving including multi layer dimensions that makes them more and more complicated to apprehend. Thanks to a strong legal expertise and a significant knowledge in the management of projects, CityTools is able to facilitate the path of any complex project and advise wisely the decision makers.


Territorial complexity

The evolutions in the organisation of territories invites the project owners to think outside the perimeter of their projects and question their impact on a wider, metropolitan scale. CityTools can provide a strong expertise in management of projects on a local, regional and european scale


Complexity of management

The players participating in urban management are more and more numerous and diverse. They interact in various contexts and timings. CityTools facilitates the understanding of those interactions and acts as a coordinator and mediator, in the decision making process.


Democratic complexity

We are witnessing today a redefinition of the relations between the politics, the experts, the associations, and non specialists in the urban projects. The cities are not developped withoud consultation anymore, both upstream and downstream of a process. Thanks to a solid expertise in participation process and governance, both theoretical and practical, CityTools can offer a facilitation of the public dialogue around projects.


Ecological complexity

The challenge of global warming and the ecological crisis (biodiversity, air, soil, etc) are pushing the project owners to include the environnemental dimension, further and further. CityTools proposes a high level expertise and a general strategy based on experience of management of environnementally friendly projects.


Facilitating the city : In today’s cities, public and private developers engaged in urban projects are facing an ever growing complexity. CityTools is a facilitator allowing those developers to go through complex processes successfully.

How are we working ?

Assistance to owner

We assist all the key actors in urban projects: civil servants, director of administration, project manager in a real estate company, architects, urban planners, etc. CityTools provides expertise in each step of the developpement of a project:

  • prospective and property search
  • opportunity of projects/definition of strategies
  • institutional, financial, legal organisation
  • feasibility study
  • programming
  • Architectural process
  • Masterplanning/assistance to conception
  • Temporary uses
  • Social context/participation

1. Assistance to owner

Project team

CityTools creates specific project teams in which the interdisciplinary expertise is valued : urbanism, sociology, geography, environnement are part of the analysis and of the creative process, allowing to produce realistic and efficient solutions :

  • Masterplanning
  • Territorial analysis
  • Environnemental study
  • Social diagnosis
  • Citizen participation
  • Financial & operational setting

CityTools’ network is wide and includes many architecture and planning agencies, consultancy firms, and real estates developpers, both in Belgium and abroad.


2. Project team

Research team

Thanks to the diversity of competences within its structure, CityTools is in itself a team of research-action capable of investigating a wide range of urban problematics. Its members are also involved in the organisation of projects and debates questionning the city today in all its aspects. CityTools also proposes trainings towards administrations, associations, and private entreprises.


3. Research team

In our working approach, we aim at combining a pragmatic and result-driven approach, with a scientific and academic expertise.


CityTools is a flexible structure promoting a network-oriented working approach, assembling spectific teams according to the type of missions. CityTools has already worked within project teams with the following agencies :

Studio Secchi-Vigano



Idea Consult

Lateral thinking factory

Sum Project



Antoine Crahay

Antoine Crahay

is a geographer, with specializations in urban planning and environmental management. Between 2004 and 2014, he has been an advisor and chief of staff for the minister of environment, energy and urban renovation of the Brussels Region. In these functions he developped a green building strategy for Brussels, including the BATEX program, representing more than 600.00 sqm of exemplary green buildings.

Between 2009 and 2014, he formed and managed the team working on urban renovation, green spaces, and structural funds (ERDF). In this function, he was in charge of orienting the strategy of investments in urban projects for over a 100 million euros each year, including the following projects:

  • A network of parks (20ha) around the Tour et Taxis area
  • The sustainable neighbourhood TIVOLI
  • A strategic masterplan (« plan guide de la rénovation urbaine ») reorganizing all urban renovation programs

In addition to this, his participation in the boards of public entities such as CityDev and NEO have given him a strong experience in the development of large scale urban projects, both in terms of finances or accountancy, and in terms of environment or planning.

As a chief of staff, he was also in charge of all the energy and environmental policies (water, noise, biodiversity, etc) for the Brussels Region


Geographer, with specializations in urban planning and environmental management. Large expertise in the management of urban projects at local, regional and EU scale.


Nicolas Hemeleers

Nicolas Hemeleers is a law specialist and urban planner, specialized in sustainable urban projects and european urban policies. Between 2009 and 2014, he has been an advisor then a deputy chief of staff for the minister of environnement, energy and urban renovation for the Brussels Region.

He was in charge of the implementation of the Brussels ERDF program (2007-2013) : a global investment of 120 million euros in the economical developpement, with a focus on the transition towards a green economy, and the renovation of the canal area. Including the following projects : the incubator of green business « Greenbizz », an urban farm and food hall on the « Abattoirs » site, the recycling facility « Ecopôle », and the Brussels center for fashion and design (MAD brussels). He was also in charge of the negociation of the budgets for the 2014-2020 period both at regional, federal, and european level (european councils of ministers).

In this function he also developped the « sustainable city » strategy for the Brussels Region, including with the brussels candidacy for the title « european green capital » for 2015 (second place), by representing the region in various international associations active in environnement (ICLEI, Energy Cities, Eurocities, etc), and by organizing numerous events linked with environnement (exhibitions, high level meetings, etc).

Between 2007 and 2009, he worked as the manager of CityTools and was involved with numerous projects of assistance and planning, both public and private, including the following projects :

  • Masterplan and definition of an urban vision for the territory of Neder Over Heembeek
  • Proposal of developpement of the site of Dames Blanches in Woluwé Saint Pierre, with Studio Secchi-Vigano
  • Masterplan of developpement for the « contrat de quartier Primeurs » in Forest.

Master in Law and urban planning. Specialized in sustainable urban projects and european urban policies.


Mathieu Berger

Mathieu Berger is a sociologist and specialist of urban issues and policies, in Europe and the US. Since his professional beginnings in 2003, he has built an expertise on matters such as urban governance, citizen participation, community development and social aspects of urban planning. After a PhD degree in social and political sciences, with a dissertation on Brussels Region’s programs of neighborhood improvement, he became an advisor for Brussels’ minister of environment, energy and urban renovation. Being in charge of the coordination and follow-up of the « Contrats de quartier » programs, he has been involved in the reform of urban renewal policies (changing of the legal framework in 2010, launching of a strategic masterplan for a revision of the urban renovation policies in 2011).

Since 2011, Mathieu Berger is a Professor at the University of Louvain, where he teaches urban sociology, research methods and sociological theories of power. His comparative research on urban policies in Europe and in North America lead him to sejourn and work in the USA at multiple times, through visiting scholarships in UCLA (Los Angeles, 2008-2009) and The New School for Social Research (New York City, 2012-2013). He is the (co-)author of many academic papers and books, among others : Bruxelles à l’épreuve de la participation (2009), Du civil au politique (2011) and Interiors. Notes and Figures (2014). In 2012, he receceived the international Jean Widmer Award for his work in sociology of public spaces.


Sociologist. Specialist of urban issues and policies, in Europe and the US.