• The project, which involves eight buildings and a semi-detached house in the San Sebastian neighbourhood, represents a total investment of €15.1 million.
• It also includes the redevelopment of public spaces, landscaping work and energy and sustainability improvements, among other measures.

With around 20,000 inhabitants and more than 8,900 homes, Altza is one of the most densely populated neighbourhoods in San Sebastian. More than 85% of its residential stock was built before 1981, making comprehensive investment in refurbishment and modernisation essential. The works, which have been underway since the second quarter of 2024, are now entering their final phase, with all comprehensive refurbishment work expected to be completed by the end of the year. However, work on public spaces is expected to continue throughout 2026.

This is one of the largest operations promoted by the Department of Housing and Urban Agenda, with a total investment of €15.1 million: €9.2 million contributed by the Basque Government through PIIE funds; €3.2 million by Donostia City Council and €2.6 million from the neighbourhood.

The first line of action has focused on the extensive renovation of residential buildings, reaching a total of 202 homes distributed across eight homeowners’ associations and one semi-detached house, located in the most vulnerable areas of the neighbourhood. These actions improve accessibility, energy efficiency (with an approximate economic saving of 60%), habitability and fire protection, and reinforce structures and adapt buildings to current regulations. The ventilated façades incorporate a metal substructure, air chamber and thermal insulation, thus improving the interior temperature and humidity. In addition, several entrances have newly constructed external lifts.

At the same time, to support communities throughout the process, a neighbourhood office (Opengela) has been set up to offer local, professional advice on procedures, information and resolving queries, encouraging active community participation.

The project also includes the redevelopment and improvement of public spaces, with the renaturalisation of streams in Auditz Akular; the recovery of contaminated soil in the Larres Watercourse; and the creation of greener environments in Ederrena Square and the accesses to the Herrera pelota court. In addition, the routes to the Altza health centre and the Harri Berri ikastola (Basque-medium school) are being improved, with the aim of facilitating mobility for hundreds of families.

In terms of energy sustainability, local energy communities have been set up: a photovoltaic plant on the roof of the Altza public school supplies 13 buildings and public facilities with 98,075 kWh per year, and another plant in the sports centre will produce 377,505 kWh per year in a shared self-consumption scheme that will benefit municipal facilities.

The digitisation of homes allows real-time monitoring of parameters such as air quality, humidity, temperature, CO₂ levels and energy consumption, and provides families with tools to optimise energy use and improve their comfort and health.

The project also highlights the value of Lau Haizeta Park, renewing signage by designing environmental trails with QR codes. A study of visitor numbers has been carried out to guide future improvements, consolidating a natural space that is widely used by the community.

In this way, the comprehensive regeneration of Altza has established itself as a pioneering project in the Basque Country, both for its economic scope and its social impact. The combination of housing renovation, local services, clean energy, digitalisation and improvement of the urban landscape represents a model to be followed for future operations in other neighbourhoods of San Sebastian and the Basque Country as a whole.

• The renovation of 130 homes and the reurbanisation of the neighbourhood have involved an investment of €10.8 million, of which €3.3 million (30%) comes from the Department of Housing and Agenda.
• The project integrates nature-based solutions (NBS) and reduces non-renewable primary energy consumption by more than 60%.
• Neighbourhood participation and the proximity office (Opengela) have been the cornerstones of the neighbourhood’s regeneration.

The Aramotz neighbourhood in Durango has reached a historic milestone by becoming the first neighbourhood in the BIRTUOSS-Opengela project to successfully complete its comprehensive urban regeneration process. This achievement represents a decisive step towards more sustainable, accessible and cohesive neighbourhoods, and sets a benchmark for future interventions in the Basque Country.

The intervention involved a total investment of €10,796,589, jointly financed by various entities: the Basque Government’s Department of Housing and Urban Agenda (30.47%), Next Generation EU funds (32.57%), Durango Town Council (18.42%) and direct contributions from local residents (18.54%). This joint effort reflects a shared commitment to promoting a transformation that goes beyond the physical and focuses on improving people’s quality of life.

A renovated and more sustainable neighbourhood

The project involved the renovation of 130 homes and six commercial premises, distributed across 16 buildings with ground floors and three upper floors. The work included the installation of lifts to ensure accessibility, structural reinforcement, the modernisation of facilities and comprehensive improvements to energy efficiency.

One of the keys has been the commitment to sustainability: the interventions carried out have enabled a reduction of more than 60% in non-renewable primary energy consumption, an essential requirement for accessing aid from the Recovery, Transformation and Resilience Plan. This progress not only benefits the environment, but also represents significant savings in energy costs for families.

Nature-based solutions (NBS) have also been adopted as the cornerstone of regeneration. These measures enable nature to be integrated into urban planning and respond to the challenges of climate change through sustainable drainage systems, the renaturalisation of spaces and more efficient water cycle management.

At the same time, the reurbanisation of the neighbourhood has transformed public spaces with the creation of new green areas, pedestrian streets, renovated lighting, modern street furniture and meeting places for community life. The Larrinagatxu stream has also been renaturalised, and the integration of the natural environment with the urban fabric has been improved.

The role of the technical team and neighbourhood

The neighbourhood office (Opengela), managed by the municipal public company Durango Eraikitzen and located in the neighbourhood itself, has been another key element of the project. From there, technical, administrative and social assistance has been provided to the residents’ communities, facilitating the processing of grants, the coordination of interventions and the comprehensive management of the works.

On the technical side, MAAB Arquitectura y Urbanismo was responsible for the design and planning, in collaboration with the SOIL Arquitectura del Paisaje studio. Their work has been recognised for the quality of the project and for the effort made in the comprehensive transformation of the neighbourhood. In turn, the execution of the works has been carried out by Codenor Bizkaina de Rehabilitaciones and Construcciones Intxausti, whose exemplary coordination and rigorous compliance with deadlines have been decisive for the success of the process.

One of the most notable elements of this regeneration has been the active participation of the neighbourhood. Residents have not only contributed financially, but have also been involved throughout the process, making decisions as a community, collaborating with the proximity office and contributing their vision of how they wanted the neighbourhood to be in the future.

Thanks to this involvement, Aramotz has become an example of urban regeneration co-created by citizens, institutions and technical teams, a model based on transparency, proximity and shared commitment.

A model that is expanding

The Mayor of Durango, Mireia Elkoroiribe, emphasised that ‘the comprehensive regeneration of Aramotz has been a strategic project for Durango, not only because of its budgetary scale, but also because of the profound impact it has on the daily lives of the people who live in the neighbourhood. We are talking about improving homes, making doorways accessible, and creating public spaces designed for living together, resting and sharing. We are talking about improving homes, making doorways accessible, creating public spaces designed for socialising, relaxing and sharing’.

She added that ‘it is an initiative that transforms the physical environment, yes, but above all it transforms the living conditions of hundreds of residents’. Elkoroiribe concluded by emphasising that ‘Aramotz is being reborn, and this is the result of years of joint work between institutions and the people of Durango. It is a shared source of pride, a model of a municipality that we are extending to the whole of Durango: more accessible, greener and more inclusive’.

For his part, Juan Carlos Abascal, Deputy Minister for Territorial Planning and Urban Agenda of the Basque Government, pointed out that the success achieved in Aramotz is the result of collaboration between institutions, citizens and businesses, and a clear example of how complex projects can be carried out if they are tackled in a coordinated manner.

The BIRTUOSS-Opengela project aims to comprehensively regenerate entire neighbourhoods, putting people at the centre. The regeneration of Aramotz began to take shape in 2016, through various urban studies and social diagnoses, and its experience will serve as a reference and guide for future interventions in other municipalities.

With this completion, Durango and the Basque Country are taking a decisive step towards a new urban model that is committed to accessibility, sustainability, social cohesion and citizen participation. Aramotz has not only been transformed as a neighbourhood: it has become the symbol of a paradigm shift in the way cities are conceived and experienced.

This year, Torreurizar, the iconic social housing building designed by Ricardo Bastida in 1919 and converted into the living lab of the BIRTUOSS-Opengela project, will be open to visitors as part of the Open House Bilbao 2025 programme.

Visits will be free of charge and will take place on Saturday 4 October, from 10 a.m. to 6 p.m., in groups of 15 people, with each tour lasting 60 minutes.

Torreurizar is currently undergoing sustainable renovation, incorporating improvements such as thermal insulation and solar panels, thus combining historical heritage and energy efficiency. Its opening to the public will allow visitors to discover how architecture can connect history, community and the urban future.

Torreurizar’s participation in Open House Bilbao also reflects the objectives of the Opengela project, which seeks to promote sustainable, inclusive and socially responsible urban regeneration.

The Basque Government has approved the second amendment to the agreement reached in 2022 with the local council of the town in Vizcaya, which will enable the renovation of 12 buildings comprising 126 homes.

In addition, the Technical Office for Management and Proximity will be set up to support neighbourhood communities throughout the process.

The Basque Government has approved the second amendment to the agreement of 20 December 2022, which granted a direct subsidy to the Orduña Town Council for urban regeneration and the renovation of buildings in the Landatas and Maria Dolores Madaria neighbourhoods.

The aid, which amounts to a maximum of €2,135,908.13, is part of the Berpiztu programme and aims to promote the Opengela regeneration model, in line with the commitments of the Euskadi Bultzatu 2050 Urban Agenda, which is committed to sustainability, energy efficiency and improved accessibility.

The project includes the renovation of 12 building entrances comprising a total of 126 homes: entrances 1, 3, 5 and 7 on Maria Dolores Madaria Street, entrances 3 and 5 on Gran Vía Street, and entrances 4 and 6 on Paseo de La Antigua. It also includes the creation and launch of the Technical and Local Management Office, which has served as a point of reference to support neighbourhood communities throughout the process.

The neighbourhoods of Landatas and María Dolores Madaria were built in the 1960s and have not undergone any improvements since then. A total of 158 families live there (90 in María Dolores Madaria and 68 in Landatas).

The historic neighbourhood of Vista Alegre, in Sestao, faces the final stretch of its transformation thanks to an ambitious comprehensive urban regeneration project that will be completed in October 2025. The initiative is led by the Basque Government, in collaboration with the Sestao City Council and the neighborhood communities themselves, with the technical and social support of the Opengela neighbourhood office.

The intervention focuses on the rehabilitation of the Vista Alegre Group, a closed block built in 1914, consisting of 11 doorways and 93 dwellings, which is undergoing a profound structural, energy and urban transformation. The project was recognised with the AVS 2024 Award for the best comprehensive regeneration initiative in Spain for its impact on habitability, accessibility, energy efficiency and community involvement.

The action has a total investment of 5,276,975 euros, financed through a collaborative model. The Basque Government has contributed 4,403,178 euros, of which 4,235,743.80 euros come from the Inter-institutional Strategic Investment Plan and 167,435 euros from complementary funds. Sestao Town Council has contributed 682,305 euros, while the owners have contributed an investment of 191,491 euros.

An intervention with multiple dimensions

The project combines several integrated lines of action that make this intervention a benchmark in sustainable urban regeneration. The buildings are being thoroughly refurbished, improving their thermal envelope by insulating the façades, ground floor and roofs, installing new window frames and glazing, as well as thermal and electrical energy generation systems using aerothermal energy and solar panels. In addition, sensors are incorporated to control indoor air quality and fire protection systems.

The urban environment is also being renovated with nature-based criteria. The urbanisation works cover streets such as Resurrección María de Azkue, Antonio Machado, Los Baños and the Amador Palma park, and include new service connections, paving, lighting and street furniture.

In the field of energy, the creation of a local energy community is being promoted together with Edinor and Piztu Sestao, which will allow between 25 and 50 agents in the neighbourhood (including homes, businesses and public facilities) to benefit from shared self-consumption.

The digitalisation of the neighbourhood is another of the project’s commitments. It is planned to install a public wifi network, community ADSL infrastructure, and intelligent systems for energy and environmental management. Elements of historical memory will also be integrated, in recognition of the bombing suffered in 1937. This provides an identity value that reinforces the social and cultural dimension of the regenerated environment.

This whole process is carried out with the constant support of the Opengela neighbourhood office. This technical office serves as a liaison between the neighbourhood communities and the institutions, and facilitates procedures, advice, resolution of technical doubts and decision-making. Its role has been fundamental for citizen involvement in the project and has been recognised at state level for its community value.

Bilbao City Council and the Basque Government are carrying out an ambitious urban regeneration plan in Uretamendi, one of the 25 neighbourhoods belonging to the Opengela programme. This initiative seeks to improve the living conditions of its inhabitants by rehabilitating housing; promoting accessibility; renaturalising degraded spaces and strengthening the social fabric.

Uretamendi, together with Betolaza, has a very old housing stock (average 58 years old) and serious structural deficiencies: barely 30% of the buildings have lifts. Since 2023, the municipal company Surbisa has been carrying out improvement work in 19 blocks, benefiting more than 200 homes. These actions, which include renovation of roofs, façades and structures damaged by termites, have mobilised 1.34 million euros, with significant public subsidies.

In addition, the Basque Government has declared 143 buildings in the neighbourhood as an Integrated Rehabilitation Area, which allows access to increased aid, in some cases up to 100% of the cost.

To facilitate the procedures, Surbisa has set up a neighbourhood office (Opengela) where residents receive technical and legal assistance. It will also pay for the technical projects necessary for the works, with grants covering up to 10,000 euros per community, which will make it easier to access future regional or European subsidies.

In addition to the structural works, the aim is to transform degraded courtyards and small squares into green spaces for neighbourhood coexistence. Six key areas have been identified for their recovery, including Betolaza, 48. The interventions include paving; installation of vegetation; benches; vegetable gardens and playgrounds, with aid that will cover up to 80% of the cost in Uretamendi.

Adaptation of the subsidy calendar

Given that many processes have been slowed down by neighbourhood dynamics, the shortage of materials (due to factors such as the war in Ukraine) and conflicts with awarding companies, the Basque Government has approved a rescheduling of the timetable for execution and justification of subsidies. Although the total amount (455,507.60 euros) has not been increased, the deadline for justification has been extended until December 2026 and the planned annual payments have been redistributed.

This modification responds to the need to manage two new sources of aid: one for energy rehabilitation and accessibility, and the other for the renaturation of private spaces.

The Director of Neighbourhood Regeneration and Urban Agenda, Ana Telleria, stresses that these processes require time and proximity: «It is not only a physical transformation, but also a social and community one. That is why we work together with local councils and neighbours, adapting to their real needs».

This comprehensive approach will be extended to other neighbourhoods such as El Peñascal and Uribarri and could in the future reach 635 buildings in 16 different areas of Bilbao that are more than 55 years old. The aim is to prevent the abandonment of vulnerable areas, promote social cohesion and build more sustainable, accessible and inclusive neighbourhoods.

Sources: El Correo and Irekia website

ManagEnergy, the European Commission’s initiative for regional and local energy agencies, has published an article on its website exploring how the Basque Country is transforming its older neighbourhoods into models of inclusive and climate-resilient living through the Opengela programme.

As they explain, “with 30% of its housing stock in urgent need of renovation, the Basque Country is leading a bold and ambitious urban regeneration effort. Through the Opengela programme, supported by the BIRTUOSS project, the region is moving from individual refurbishment to the complete transformation of neighbourhoods”.

They add that “more than a housing initiative, it is a powerful model for combining energy efficiency, social equity and urban transformation”.

Read the full article here.

• Opengela Roadmap and Opengela Communities are two tools created by Cíclica and the Polytechnic University of Catalonia (UPC), with funding from the Basque Government.  

• With this method it is possible to work on a hypothesis of what will happen to each building in the Basque stock, and it provides key information for the Digital Building Register and the Renovation Passport. 

• Ana Telleria, head of Neighbourhood Regeneration and Urban Agenda of the Basque Government, assures that “the main objective of these two tools is to facilitate decision-making by all the agents involved in housing renovation: Administration, professionals, companies in the sector and residents, whom we want not only to involve in the process but also to empower”.

The Basque Government, in collaboration with Cíclica and the Polytechnic University of Catalonia (UPC), has developed two pioneering tools that will transform the management and planning of urban regeneration: Opengela Roadmap and Opengela Communities. These advanced solutions facilitate the architectural, energy and economic diagnosis of each building in the Basque Country, providing a unique framework for decision-making and neighbourhood involvement in housing renovation.

Ana Telleria, head of Neighbourhood Regeneration and Urban Agenda of the Basque Government, highlighted that “these tools are a decisive step towards a more sustainable and equitable Basque Country”. According to her, “they allow us to look to the future with solid, data-driven planning, ensuring that all communities, regardless of their size or vulnerability, can benefit from change”.

Comprehensive diagnosis with Opengela Roadmap

Opengela Roadmap is a key tool for public administration, designed to create roadmaps towards the decarbonisation of the Basque building stock with a view to 2050. Using UBEM (Urban Building Energy Model) technology, it analyses each building in the territory, identifying priorities according to its location, year of construction, energy performance and other indicators such as energy vulnerability. This makes it possible to generate customised scenarios for each community and to evaluate the effectiveness of public policies, such as subsidies and grants.

In the words of Telleria, “thanks to these new methodologies, and as part of the research that has enabled a first approach to the long-term Action Plan for improving the energy efficiency of the Basque Country’s building stock, an architectural, energy and economic diagnosis has been made of all the residential buildings in the Basque Autonomous Community”. In this case, the homogenised data obtained from the cadastres of the three territories have served as the basis for generating a database of buildings in the Basque Country.

Thus, through the Roadmap tool, the user can select and prioritise different sectors of the stock according to specific characteristics: geographical location – provinces, municipalities and their aggregated areas, districts or streets -, type, year of construction, energy performance or previous segmentations included in the database such as, for example, energy vulnerability. “This allows you to create different scenarios and, depending on the data entered, it is possible to obtain a renovation roadmap that covers all the buildings considered in the selection analysed, and ultimately, the entire stock as a whole”, explains Cíclica.

It is therefore possible to test and confirm the effectiveness of the policies associated with the inputs -subsidies, grants, etc.- through the results obtained. These can be checked in terms of, for example, final and cumulative performance improvement, cost distribution over time by the stakeholder or demands on the industry. The best options for the whole stock and for each of the segments under consideration can then be assessed.

According to Telleria, “the Roadmap tool is an instrument of analysis and strategic planning and scenario modelling to check the different variables that the public administration can introduce into the equation”. Moreover, she states that, “depending on the optimisation criteria used, it also provides a renovation itinerary for each building, organising the different interventions over time, together with their economic and environmental balances and in line with the evolution established in the minimum energy efficiency standards”.

Furthermore, working with the entire building stock -or only with some of its segments- implies having tools that allow for a quick visualisation of the information. Beyond the synthetic results of the scenarios, a precise visualisation of the geographical distribution of the characteristics of the building stock must be provided at various scales. In this sense, the Roadmap tool integrates a viewer of the building stock, which allows data to be extracted and offers a highly operational visualisation that facilitates decision-making.

Digital Building Register and Renovation Passport

Consequently, once a roadmap for the stock -or a segment of it- has been selected, a set of data on each building is available to provide an individual draft for the Digital Building Register and the Renovation Passport. In this way, a top-down view of each building in the stock is obtained, together with its evolution over time.

This information defined for each building can also be used to search for synergies between projects. The tool offers the possibility to develop these urban projects by planning the aggregation of interventions of different buildings in the same street, square or neighbourhood. It is at this urban scale where, based on the drafts generated by the tool, architectural quality criteria are introduced in energy renovation and urban regeneration projects.

Neighbourhood empowerment with Opengela Communities

On the other hand, Opengela Communities focuses on involving owners and tenants in the renovation process. Through a web platform, neighbours can access the Digital Building Register and the Renovation Passport, receiving technical, administrative, financial and support guidance. In addition, this tool prioritises the most vulnerable communities, tailoring support plans to their specific needs to ensure an inclusive transition.

“We want this transformation to be not only technical, but also social”, explains Telleria. The Opengela Communities tool helps “residents to become active agents of change, facilitating their participation in a process that might have seemed inaccessible before”, adds Telleria.

Seven main groups of indicators are considered for this tool. The architectural ones refer to the current situation of the building stock. The energy and economic ones allow to analyse the impact of renovation measures. Three categories of use, construction system and devices show additional information about the building and are improved by the local technician of the neighbourhood office with the support of the neighbour.

The visualisation of the Digital Building Register is based on a prototype with detailed building information; a renovation and financing plan; and a decision support system. This support can be provided face-to-face or virtually, and covers tasks related to the consolidation of the draft of these two documents as required.

In conclusion, these tools not only represent a technological advance, but also a commitment to sustainability and social cohesion in the Basque Country. With Opengela Roadmap and Opengela Communities, the Basque Government is positioning itself as a benchmark in urban regeneration, leading the way towards a greener and more equitable future.

Two years ago, the transformation of part of Beraun (Errenteria), one of the 21 neighbourhoods belonging to the Opengela programme, began. As a result, 63 homes have been completely refurbished and the public space has been urbanised and improved. This urban regeneration plan has been promoted jointly by Errenteria City Council and the Basque Government and has also involved the participation of the neighbourhood.

It should be noted that, as the Basque Government indicates, ‘the operation as a whole has made it possible to carry out the necessary actions to guarantee the structural, constructive and habitability adaptation of the blocks and has served to improve their energy efficiency by installing ETICS and a ventilated façade’. Likewise, to regenerate the public space and improve the facilities, two new squares have been created in Beraun street; the forms of sustainable and safe mobility in this street have been improved and lifts have been built between Juan Crisóstomo, Aita Donostia and Mauricio Ravel streets. The construction of the new car park building at the end of Beraun street and the surface car park in front of the Basque pelota court have also been carried out.

The plan has also included the refurbishment of the Aldakoenea building for use as a multi-purpose municipal facility by creating a space for the ZU! service to attend to citizens; another for social services and, finally, one managed by the library for the use of citizens.

However, as the Regional Minister for Housing and the Urban Agenda, Denis Itxaso, specified during his visit to the neighbourhood, ‘the department is continuing with the urbanisation and improvement work on the public space’ in order to complete the works as soon as possible.

All this would not have been possible without the support and advice provided by the neighbourhood office (Opengela) to the neighbourhood and community administrators, acting as a one-stop shop for the application and processing of subsidies and carrying out the coordination work between the neighbourhood and the administration for the implementation and execution of the refurbishment work. In fact, the Regional Minister has highlighted ‘the key role’ of the office in the management and accompaniment of the project to the neighbourhood.