Welcome to CO-HAB/RAVAL!

We are a team made up of two engineering and architecture research groups from the Universitat Politècnica de Catalunya (REARQ-UPC and GICITED-UPC) and the Oasiurbà association (a group working towards social transformation through housing in the Raval neighbourhood).

We encourage you to take part in the CO-HAB/RAVAL project. Its main goal is to improve quality of life for inhabitants of the neighbourhood through the co-design and co-construction of small renovation projects in collaboration with local associations, neighbours and professionals.


REARQ - UPC Research Group
Architectural renovation
     Pere Joan Ravetllat - Doctor of Architecture
     Sara Vima Grau - Architecture doctorand
     Còssima Cornadó - Doctor of Architecture
     Marta Domènech - Doctor of Architecture
     Gonzalo Piasek - Sociology doctorand
     Isaac Colin - Student of Architecture
     Albert Comas - Student of Architecture

Oasiurbà Association
Social transformation through housing

     Victoria Tous - Architect
     Júlia Brull - Architect
     Helena López -  Social psychologist

GICITED - UPC  Research Group
Interdisciplinary research in building sciences and technology

     Montserrat Bosch -  Doctor of Building Engineering
     Joan Ramon Rosell -  Doctor of Building Engineering
     Almudena Pérez -  Building Engineer

D’esquerra a dreta: Gonzalo Piasek, Victoria Tous, Còssima Cornadó, Júlia Brull, Albert Comas, Montserrat Bosch,
Isaac Colin, Sara Vima, Pere Joan Ravetllat


To design a bottom-up method for renovation based on residents’ needs and their capacity to improve their homes and shared spaces. To do so together with local associations and professionals as well as specialized university researchers from a cross-cutting, interdisciplinary perspective.

Co-design and


Healthy usage habits

Social fabric

Method and work phases

Phase 1

Guidance and participation

This phase includes a wide range of participants: UPC researchers, NGOs, neighbourhood associations, residents, local businesses and representatives of local administrations.

Click here to learn more about the participatory process!

Phase 2


The co-design phase involves the selection of spaces and working areas, the pre-selection of pilot buildings, participatory sessions and the preparation of a catalogue of micro-projects.  

6 working areas for use in the second phase are chosen.  

1 - Habitability and healthiness

2 - Security

3 - Resiliency

4 - Inclusion

5 - Sustainability

6 - Health

Inner courtyards for ventilation and illumination (finishes, lightwells, pest management, etc.).

Electrical installations (circuit breakers), fire load, combustible materials, lessons on serious structural damage and signage.

Construction or redistribution of mobile elements (furniture that can be used for work from home or storage in common spaces).

Signage or support elements, small interventions for improving accessibility (portable ramps, railings, signage).

Thermal insulation for interior spaces, support for the thermal performance of windows and doors, solar protection (weather stripping, double glass, etc.).

Training on healthy usage habits, community management and use, conservation and maintenance of spaces and new or existing constructive systems (ventilation, solar protection, humidity regulation, conflict management, compatibility and management of turns and usage times).

Results and replicability

A shared, participatory database. Mapping and prioritization of a selection of cases where intervention is needed.

Co-design of a catalogue of micro-projects
Collaborative preparation of a catalogue of micro-projects for the renovation of residences and shared spaces in the Raval neighbourhood. These micro-projects can also be applied to other areas of Barcelona’s old city. Specific proposals for each of the six working groups + full projects.

Implementation of 8 prototypes
Co-construction and collaborative implementation of eight prototypes in pilot buildings.

Collaboration methods and networks
The proposed method is a result in and of itself: it promotes the creation of long-lasting collaborative networks.

Impact on the environment and
public health

The prototypes address the health problems present in old buildings, such as foul smells or excess humidity due to a lack of ventilation. These solutions are also designed to be environmentally sustainable, with the generation of new forms of ventilation using passive, natural systems.

Social impact

It has been shown that quality of life improves when neighbours see themselves as part of a community; this is particularly true for disadvantaged neighbourhoods. Shared areas like rooftops can serve as gathering spaces that help to forge connections among residents.

Economic impact

Our prototypes also promote a local, circular economy. All prototypes were made with support from small, local businesses to ensure they can be manufactured in the neighbourhood.


Pere Joan Ravetllat

Pere Joan Ravetllat, Sara Vima, Còssima Cornadó, Marta Domènech, Gonzalo Piasek, Montserrat Bosch, Joan Ramon Rosell, Victoria Tous, Júlia Brull, Isaac Colin and Albert Comas

Helena López, Almudena Pérez, Jesús Quintana

Collaborating businesses
MIÜGS Solucions Constructives, SL - Asociación de mujeres carpinteras - Metal BERMANN, SL - Jardineria ÒSCAR LLOVERA - Pinturas GATA, SCP - Serralleria TOT FERRO, SL - MUCHAFIBRA Associació - Reformes i rehabilitacions ISMAEL RECIO - PERSIANA BARCELONA, SCP - Suelos y tarimas PANDIRO, SL - RIBES CASALS, SA


Amb el suport de / Con el apoyo de / With the support of