ACE-Retrofitting: Accelerating Condominium Energy Retrofitting

Project Summary

A majority of buildings in North-West Europe are still energy-inefficient and in need of deep renovation. 

Even though local governments are tackling climate change, the building sector remains a weak point. If action in this field is not reinforced, local governments will be locked in a high carbon future. Condominiums (tenements and flatted buildings) are an important area. By directing efforts towards co-owned residential buildings, a large number of private owners at once can benefit from more energy efficient homes, reduced energy bills and carbon footprint (50-70%).

Through the ACE Retrofitting project local governments learn to act as facilitators between co-owners and building experts.

Energy Cities, the European city network, along with six local authorities from five different countries design a method and governance framework that will help overcome the legal, human and financial barriers that are currently hindering energy retrofitting of condominiums.

Inspired by...  

CoachCopro, a free, online collaborative tool developed by the Paris Climate Agency (Agence Parisienne du Climat), is central to this strategy and will be improved and adapted to be used in other parts of Europe.

In France, this web-based platform has already successfully assisted condominium owners (demand) and building professionals (supply) through an iterative process which cultivates trust relationships and generates direct and indirect jobs (potentially 19 net jobs created per €1M investment). More in "Resources".

It's all about collective power 

Annemarie Van Zeijl works at the Sustainability Institute of Maastricht University. She knows a lot about stakeholder processes, especially when it comes to energy retrofitting in condominiums. A project run by several co-owners can be fun. At the same time, it is also a challenge to bring different interests together. Annemarie explains how co-owners can collectively make their building more energy efficient.

The Step-by-Step tool developed in the framework of the ACE-Retrofitting project is an important help in this process.


For any query or suggestion regarding condominium stories, please contact our communications expert Miriam Eisermann.

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Interreg NWE 2021-2027: check the list of call 2 step 1 approved projects

Posted on 21-04-2023

27 projects from the Interreg NWE 2021-2027 call 2 step 1 were approved by the Monitoring Committee in a meeting on 20-21 April 2023 in Lille, France. Read more

Interview with David Grzegorzewski

Posted on 04-04-2023

Get to know David Grzegorzewski who took over the role of Programme Director for Interreg NWE on 1st March 2023. Read more

View more

This project is also supported by the French Energy Management Agency - ADEME.

Project Partners

Lead partner

Organisation Address Email Website
Energy Cities 2 Chemin de Palente
Name Contact Name Email Country
Ville de Liège Marc Schlitz Belgium
Agence Parisienne du Climat Béatrice Bienenfeld France
Universiteit Maastricht Annemarie Van Zeijl-Rozema Netherlands
Aberdeen City Council Maizatul Afzan Muhammad United Kingdom
Stadt Frankfurt am Main Energiereferat Jonas Geissler Germany
Gemeente Maastricht Rianne Van Der Krogt Netherlands
Autonoom Gemeentebedrijf Energiebesparingsfonds Antwerpen Jan Meuleman Belgium
Changeworks Resources for Life Ltd. Ian Smith United Kingdom


Understanding owners’ motivations to support renovation of condominiums: What research and experimentation tell us

Posted on

With 12,000 households living in condominiums in Maastricht and among them 7,000 with a G energy label, the energy retrofitting of these buildings is a major challenge for the municipality. The workshop and site visit organised on 16 November in Maastricht - as part of the Interreg North-West Europe ACE-Retrofitting project, aimed to better understand owners’ barriers to taking action in their buildings thanks to feedback from academic research and project experience. Read More

ACE Retrofitting in Frankfurt – We need to reduce the energy consumption of our buildings by 70% by 2050!

Posted on

The second project meeting of ACE-Retrofitting - Interreg North-West Europe, was hosted by the City of Frankfurt from 12 to14 June, including a half-day conference which gathered ACE partners and German stakeholders involved in the energy retrofitting of condominiums. A great opportunity to better understand the challenges that the cities face to retrofit their condominiums. Read More


Low Carbon City Forum

, Paris, France

It will include a number of panel discussions, talks, film projections, exhibitions, workshops for both children and adults, group meals, evening activities, and an eco-friendly market. The Low Carbon City Forum will offer everyone the chance to come together to imagine and subsequently build sustainable, people-centric cities. The event is free and open to all!
Read More

It takes some courage for condominium co-owners to plan or carry out an energy retrofitting in their building.
The ACE step-by-step tool is there to make things easier.

If you are from a public authority, wishing to support co-owners in their endeavour, do not hesitate to spread the guide amongst your city's condominiums. 

The guide is divided into three big phases: “First steps”, “Taking-off” and “The real thing”. All together, the guide counts 17 helpful items for soft and hard measures:

  • 14 documents are ready-to-use 
  • 3 documents are designed in a way as to be adapted by a public body, esp. regarding legal and financial issues, according to the local and national context. 

Keep in mind that there is no unique starting point or strict order to use the items. However, it makes sense for co-owners to define at what stage of the building retrofitting process their project is before going to a specific section of the guide.

You can start with the summary (PPT) which links you to the various items that are available (in Word and Excel). 

🏡 Step-by-Step tool in English

This tool shall help condominium co-owners getting an insight into all steps that are necessary to make an energy retrofitting project come true.


Why and how to start or further an energy retrofitting project?

These tools will help you:

  • Inspire condominium co-owners
  • Assess the existing and required resources
  • Mobilize co-owners around the retrofitting

📥 PPT Introduction to the step-by-step tool

📥 Convince your condo 

📥 Determine your capacity

📥 Energy audit -Quickscan


How to get insight into all the relevant matters to be ready for an energy retrofitting project?

These tools will help you:

  • Design a retrofitting roadmap
  • Get legal, financial and technical information from experts
  • Learn about governance and communication schemes

📥 Communicate with neighbours

📥 Masterplan

📥 Project team mandate

📥 Tips for voting

📥 Assessing financial solutions



What, when and how will be done in the energy retrofitting project?

This tool provides you with: 

  • A specific project management plan
  • A planned timetable
  • Transparent communication among the all stakeholders

📥 Project management plan

🏡 Step-by-step tool auf Deutsch

Das Step-by-Step Tool soll Wohneigentümergemeinschaften bei der Planung und Durchführung von Sanierungsarbeiten helfen.


Wieso und wie sollte ein energetisches Sanierungsprojekt (weiter) auf den Weg gebracht werden?

Vier Hilfsmittel, um:

  • die Mitglieder einer Wohnungseigentümergemeinschaft zu inspirieren
  • vorhandene und benötigte Ressourcen innerhalb der Wohnungseigentümer zu ermitteln
  • Mitglieder der Wohnungseigentümergemeinschaft für das Sanierungsprojekt zu gewinnen

📥 PPT Einführung zum Step-by-Step Tool

📥 Eigentümer überzeugen

📥 Gebäudeaudit- Quickscan

📥 Kapazitäten bestimmen



Wie erhält man einen Überblick über alle relevanten Fragen für die Vorbereitung auf ein energetisches Sanierungsprojekt?

Sechs Hilfsmittel, um:

  • einen Sanierungsfahrplan zu erstellen
  • Rechtliches, finanzielles und technisches Expertenwissen zu erlangen
  • Verwaltungs- und Kommunikationsmodelle zu kennen

📥 Mit den Nachbarn kommunizieren

📥 Projektteam Mandat

📥 Tipps zur Abstimmung

📥 Masterplan

📥 Auswahl der richtigen Finanzierungsmöglichkeiten



Was wird wann und wie im Rahmen des energetischen Sanierungsprojekts gemacht?

Ein Hilfsmittel, um

  • Einen spezifischer Projektplan zu erstellen
  • Einen Zeitplan zu erstellen
  • Transparente Kommunikation zwischen allen Beteiligten

📥 Projektmanagementplan

🏡 Step-by-Step Tool en nederlands

De digitale balie VvE-energiebalie helpt u stap voor stap op weg. Bekijk ons Step-by-step tool all in one (zip)!

In drie fases naar een duurzamere woning. Zie ook de pdf: Verkennen, voorbereiden, uitvoeren

Eerste Stap

Waarom en hoe een energierenovatieproject starten of uitbreiden?

Te verwachten resultaten na gebruik van deze 4 hulpmiddelen:

  •  Mede-eigenaars van flatgebouwen inspireren
  • De bestaande en benodigde middelen beoordelen
  • Mede-eigenaars warm maken om te renoveren

📥 PPT Inleiding stapsgewijze tool

📥 Appartamentencomplex overtuigen

📥 Inovatievermogen-Tool

📥 Quickscan



Hoe krijg je inzicht in alle belangrijke zaken die nodig zijn om een energierenovatie te starten?

Te verwachten resultaten na gebruik van deze 5 hulpmiddelen:

  • Een renovatie stappenplan
  • Wettelijke, financiële en technische informatie door experten
  • Bestuurs- en communicatieprogramma's

📥 Communiceer buren

📥 Masterplan

📥 Beschikbare financieringsmogelijkheden

📥 Projectteam mandaat

📥 Tips voor het stemmen


Het echte werk

Wat moet wanneer en hoe gebeuren in het energierenovatieproject?

Te verwachten resultaten na gebruik van dit hulpmiddel:

  • Een specifiek projectmanagementplan
  • Een gedetailleerd tijdsschema
  • Transparante communicatie tussen alle belanghebbenden


🏡 Outil step-by-step en français

Cet outil est censé aider les copropriétés à planifier et mettre en oeuvre leur projet de rénovation énergétique.


Pourquoi et comment lancer ou poursuivre un projet de rénovation énergétique ?

Les outils vous permettent de:

  • Intéresser les copropriétaires
  • Évaluer les ressources existantes et requises
  • Mobiliser les copropriétaires autour de la rénovation

📥 PPT Introduction outils Step-by-Step

📥 Convaincre sa copro

📥 Déterminer ses capacités et ressources

📥 Audit du bâtiment - Quickscan_FR


Comment connaître tous les aspects pertinents pour préparer un projet de rénovation énergétique ?

Les outils vous permettent de:

  • Une feuille de route pour la rénovation
  • Des informations juridiques, financières et techniques d'experts
  • Des systèmes de gouvernance et de communication

📥 Communiquer avec les voisins

📥 Conseil pour le vote

📥 Mandat équipe de projet

📥 Options de financement

📥 Plan directeur


Quand et comment le projet de rénovation énergétique sera-t-il réalisé, avec quel contenu ?

Cet outil vous permet de:

  • Un planning de gestion de projet précis
  • Un calendrier prévisionnel
  • Une communication transparente entre toutes les parties prenantes

📥 Planning de gestion de projet

Online platforms for coaching and sharing

What makes the ACE concept so special, is the global approach to condominium retrofitting. Guidance is provided both to homeowners (demand) and professionals (supply). Connecting them with each other is key to success. Online platforms have proven very useful for such a matchmaking. 

Browse through the online platforms that ACE partners use for accelerating condominium retrofittings:

💬 Frankfurt Sanierungswegweiser

💬 Paris CoachCopro

💬 Maastricht Wonen en Verhuizen

💬 Liège Reno Copro

💬 Antwerp Samen Klimaatactief

💬 Saving Energy Aberdeen 

In addition to the very practical step-by-step tool, you can find here useful reports and information about follower cities having joined the condominium support movement. 


🏡 Your guide to boost condominium retrofits


Through this guide, partners from the EU-funded ACE Retrofitting project share their learnings on how to act as facilitators between co-owners and building experts. If you are working in a public (local or regional) authority or in an energy agency, the insights given will help you improve your work with condominiums.

There are common success factors and the publication provides an overview of them, illustrated by very practical examples from the six pilot cities. It also describes pitfalls that other beginner local authorities should avoid when starting a condominium retrofit strategy or policy.

📥 Read the guide in English

📥 Lisez le guide in français

📥 Lees de gids in het nederlands

📥 Lesen Sie den Ratgeber auf Deutsch

🏡 REPORT: Key policy recommendations for EU, national and regional policy makers (2020)

Condominiums must be recognised in policy as a specific building type that presents opportunities and challenges for deep retrofit. Without this recognition in policy, ambitions in the European Green Deal for building renovation will not be met. 

📥 Download the report 

📥 Téléchargez le rapport

📥  Bericht jetzt herunterladen

📥  Bekijk dan hier het gids




🏡 REPORT: Financial Solutions for Condominium Retrofitting (2018)

This report covers the financial perspective of retrofits for condominiums. It helps local authorities to stimulate energy efficient retrofits of condominiums. Thus, it examines the landscape of available financial tools. The outcome is summarized in two flowcharts that guide local authorities on how to potentially support condominiums and guide owners on how to approach the financing decision. In addition, several financing tools, examples, and innovative solutions are presented, allowing local authorities to select their own solution or to study these further.

📥 Download the report

🎯 Your political commitment


 Join the cities and organisations that have signed the ACE charter:

Want to launch a retrofit policy for condominiums in your local administration?

A municipal department taht wants to provide retrofit support to homeowners in multi-apartment dwellings cannot do this out of the blue. It requires a political decision. This helps to kick-start the definition of targets and measures and to provide the public service with adequate human and financial resources.

By signing the ACE Retrofitting Charter, a city commits to creating such favorable conditions for condominium retrofits. The voluntary self-commitment brings you closer to the stakeholder networks in your country which are experience in the field. 

🏡 Download and sign the charter so that your local administration commits itself to:

  • Stimulating the acceleration of condominiums energy retrofitting in our territory
  • Issuing a plan or strategy to speed up retrofitting of condominiums in our territory
  • Working simultaneously on demand and supply by facilitating and linking them Exchange experience with other local authorities in Europe  

📥 English 📥 Deutsch 📥 Nederlands

📥 français (France) 📥 français (Belgique) 📥 Vlaams


🎤 Want to share the ACE Retrofitting concept with others?

Feel free to use parts or the full content of our presentation below:

📥 English  📥 Deutsch 📥 français 📥 Nederlands


ACE is about smoothing energy retrofit projects. But beyond collaborative processes, we also want to achieve impactful results. 

That is why, every six months, the ACE meter reports the results reached by the project partner cities: How many owners and professionals have been coached? How many co-owner groups started retrofitting their building and how much carbon did they save?

Choose your language below the infographics and check out below where the condominiums in ACE partner cities currently stand.

By the way, the infographics can also be dowloaded in:

👍 English

Every six months, the ACE meter reports the results reached by the project partner cities: How many owners and professionals have been coached? How many co-owner groups started retrofitting their building and how much carbon did they save? Last update: July 2020




Co-owners coached

Professionals coached

Retrofitting plans voted

Retrofitting in progress: condominiums/flats

Retrofitting finished: condominiums/flats

Annual decrease of CO2 emissions in tonnes
Antwerpen Belgium 11297 388 8    64/3608 2600
Frankfurt Germany 3850 591 19  6/556  4/398 35
Liège Belgium 1741 255 7  16/620  15/188 1616
Maastricht Netherlands 609 81 6  2/155  5/382 89
Paris France 62505 2711 247  217/5205  248/5955 5046
Aberdeen UK  734   69   35/284 178










👍 Français

Tous les six mois, le “ACE mètre” reporte les résultats atteints par les villes partenaires du projet: Combien de propriétaires et de professionnels ont été coachés? Combien de copropriétés ont réalisé une rénovation et combien de CO2 ont-ils ainsi économisé? Dernière mise à jour: juillet 2020



Co-propriétaires coachés

Professionnels coachés

Plans de rénovation approuvés

Rénovations en cours: copropriétés / appartements

Rénovations finalisées: copropriétés / appartements

Diminution annuelle des émissions de CO2 (en tonnes)
Anvers Belgique 11297 388 8   64/3608 2600
Francfort Allemagne 3850 591 19 6/556 4/398  35
Liège Belgique 1741 255 7 16/620 15/188 1616
Maastricht Pays-Bas 609 81 6 2/155 5/382 89
Paris France 62505 2711 247 217/5205 248/5955 5046
Aberdeen UK     69   35/284 178









👍 Deutsch

Der ACE-Zähler liefert alle sechs Monate die Ergebnisse der Projektpartnerstädte. Wieviele Eigentümer und Fachleute wurden geschult? Wieviele Wohneigentümergemeinschaften haben eine Sanierung begonnen und CO2-Einsparungen zu verzeichnen? Letztes Update: Juli 2020



Geschulte Eigentümer

Geschulte Fachleute

Beschlossene Sanierungspläne

Sanierungen in Umsetzung: WEG / Wohneinheiten

Abgeschlossene Sanierungen: WG /Wohneinheiten

Jährliche CO2-Reduktion (in Tonnen)
Antwerpen Belgien 11297 388 8    64/3608  2600
Frankfurt Deutschland 3850 591 19 6/556  4/398  35
Lüttich Belgien 1741 255 7 16/620  15/188  1616
Maastricht Niederlande 609 81 6  2/155  5/382  89
Paris Frankreich 62505 2711 247  217/5205 248/5955  5046
Aberdeen UK 734   69   35/284 178









👍 Nederlands

De ACE-meter presenteert de resultaten die door de partnersteden zijn bereikt op het gebied van gecoachte eigenaren en professionals, gerealiseerde verduurzamingsmaatregelen en CO2-reductie Update: juli 2020



Gecoachte mede-eigenaren

Gecoachte professionals

Verduurzamingsplannen vastgesteld door ALV

Duurzame renovaties in uitvoering: appartementen/flats

Afgeronde duurzame renovaties: appartementen/flats

Jaarlijkse CO2 reductie (Ton)
Antwerpen België 11297 388 8   64/3608 2600
Frankfurt Duitsland 3850 591 19 6/556  4/398  35
Luik België 1741 255 7 16/620  15/188 1616
Maastricht Nederland 609 81 6 2/155 5/382  89
Parijs Frankrijk 62505 2711 247 217/5205 248/5955 5046
Aberdeen UK 734    69   35/284 178









Photo by Gleren Meneghin on Unsplash

🏡 Case studies 


In addition to the very practical step-by-step tool, below you can find inspirational material to boost energy retrofitting of condominiums in your area.


Guidance and match-making through an interactive platform: Paris, France

Béatrice Bienenfeld works at the Paris Climate Agency (APC). The APC has developed a tool called CoachCopro that facilitates energy retrofit projects. In this video (in French), Béatrice explains how this tool and platform brings homeowners and professionals together. The Step-by-Step tool developed in the framework of the ACE-Retrofitting project has been inspired by the CoachCopro and is an important help in such an endeavour.

📥 Read the full case study on the CoachCopro developed by Paris Climate Agency


Find many other case studies below by selecting the country of your choice. 


Guidance and match-making through an interactive platform: Liège, Belgium 

📥 Click here to read six case studies (in French) describing condominiums in Liège

Guidance through a Renovation Masterplan: Antwerp, Belgium

The city of Antwerp offers residents of apartment buildings of at least 20 years old, with at least 20 residential units a premium to make their building future-proof in a planned way.


Voor Vlaamse bezoekers: Watch the video in Flemish


From insulation or asbestos abatement to deep renovations in condominiums: Liège, Belgium

The city of Liège has carried out various retrofit works in condominiums. Each case study describes the works carried out as well as the funding and players that made the renovation possible.

📥 Read the case studies (in French)


Désamiantage des conduites de chauffage

📥  Télécharger étude de cas

Isolation par l’extérieur : avec intégration de balcons

📥  Télécharger étude de cas

Isolation toiture

📥  Télécharger étude de cas

Isolation d’une façade avant

📥  Télécharger étude de cas

Remplacement des systèmes de chauffage et eau chaude

📥  Télécharger étude de cas

Remplacement d’éclairage par des LEDs

📥  Télécharger étude de cas

Installation de panneaux solaires thermique et photovoltaïques

📥  Télécharger étude de cas



A forward-looking master plan for BRABO I: Antwerp, Belgium

In order to make it easier for apartment dwellers to make their building energetically renovate, the city developed a toolbox containing a type specification for a master plan study. 

📥 Read case study 1

📥 Read case study 2


New heat for an existing apartment building: Antwerp, Belgium
Since May 2018, the heat for the New South district of Antwerp is no longer generated for each individual building, but is generated centrally for several buildings.

📥 Read case study


Innovative financing of a co-ownership: Antwerp, Belgium

Read more about the results of a study on the Greenpark Residence and information about funding through a VME Credit.

📥 Read case study


Facade renovation at the intersection of public and private: Antwerp, Belgium

In 2014, a facade renovation of the ’T Hooghe Huys was carried out. For that purpose, a technical committee was set up within the VME with the aim of managing the execution of the works. The VME always had a strong vision around saving, which resulted in a reserve fund.

📥 Read case study


The trustee as the connecting factor: Antwerp, Belgium

📥 Read the case study of Leeuwerikenveld

Committing at once to energy efficiency and quality of life: Antwerp, Belgium

📥 Read the case study Rozendreef


 Setting up a One-Stop-Shop: Frederikshavn, Denmark

Learn how the municipality of Frederikshavn worked with partners to set up a One-Stop-Shop to encourage owners to start energy
retrofitting and assist them throughout the process.

📥 Read the case study


Energy Retrofitting in Tartu, Estonia

In this case study, you will learn how the City of Tartu and the Tartu Regional Energy Agency worked with residents to retrofit condominiums in order to increase energy efficiency and housing comfort.

📥 Read case study


Energy expert trainings: Tampere, Finland

The City of Tampere has been actively supporting condominiums (limited liability housing companies) with “Energy Expert” training courses since 2000. Between 2015 and 2017, this activity was supported by the Low Carbon Housing Tampere Plus (TARMO+) project. The aim of this project has been to make housing companies in this region think about how to be energy efficient in line with the 2025 city strategy

📥 Read case study


Paris: matching stakeholders

📥 Read further case studies (in French) on condominums in Paris

👀 Watch the official CoachCopro promotional video (in French)


📥 See the full gallery of around 50 best practices by CoachCoPro in Paris and other French municipalities


Stakeholder involvement as local relays and experts - the Ecoreno’v advisory service: Greater Lyon, France

Greater Lyon, gathering 59 municipalities, has developed a comprehensive large scale energy retrofitting programme. Based on strong and trustful collaboration between complementary public institutions and the commitment of local private actors, the Ecoreno’v service already provided, over a four years period - advice, tools and financial support to retrofit 5 000 condominium apartments.

📥 Read case study


Case studies from around Frankfurt

Neue Heizung, neues Glück - für alle, Darmstadt 

 📥 Herunterladen 📥 English 📥 German

Under one roof, Gelnhausen

📥 English 📥 German 

Plugging the holes, Hanau

📥 English 📥 German

Having a clear view, Frankfurt

📥 English 📥 German

Condo energy retrofitting stories:
Profesionnals in Frankfurt

📥 English 📥 German

Fixing the leaky roof, Fulda

📥 English 📥 German

Renovation backlog all around, Neu-Isenburg

📥 English 📥 German

 Wrapped from head to toe, Offenbach

📥 English 📥 German

Condo energy retrofitting stories:
Profesionnals in 

📥 English 📥 German

Condo energy retrofitting stories:
Profesionnals in Oberursel

📥 English 📥 German


Co-designing the retrofitting process - the Sharing Cities method: Milano, Italy 

Since the project started, 942 families have actively participated through 12 co-design meetings and supported by 7 institutional visits. 24 000m² have been retrofitted which has resulted in a total reduction of 470 000 kg CO2 and a total energy savings of up to 52%. Learn more about how they did!

📥 Read case study


Easing condominium retrofits through a one-stop-shop: Riga, Latvia

In line with its political commitments, the Riga Energy Agency, a municipal entity of the city of Riga, took part in the INNOVATE project, an EU Horizon 2020 project that aimed at setting up a One-Stop-Shop (OSS) to provide information on energy renovation for citizens.

📥 Read the case study


Everything started in one street: Santa Coloma de Gramenet, Spain

The municipality of Santa Coloma de Gramenet near Barcelona has launched an energy retrofitting programme called Renovem Barris in the south and central-south neighbourhoods of the city. This plan is still in deployment and involves a population of approximately 60 000 inhabitants. 

📥 Read case study (and in German)

The Netherlands

Condominiums contributing to the 2050 goal: Maastricht, The Netherlands

Under the flag of #missionzeromaastricht, the Dutch city of Maastricht is working on an energy-efficient city. Making apartment complexes energy efficient and sustainable is part of that ambition. This case study describes the steps owners associations are taking to contribute to a climate neutral Maastricht in 2050.

📥 Read the case study (in Dutch)

📥 Read the case study (in German)

👀 Watch how the VVe energy coach supports co-owners in Maastricht (in Dutch)

United Kingdom

Case studies from around Oxford and Edinburgh

  Saving Energy Aberdeen: Aberdeen, UK

The 220,000 residents of Aberdeen live in 107,000 properties. Many of them are not energy efficient. Heat losses are very important. How can we make them more energy efficient?

👀 Watch the video (in English)


Telford Road, fully-funded retrofit of two mixed-tenure blocks: Edinburgh, UK

The main measure installed was external wall insulation across two blocks of flats. Both blocks were mixed tenure, a combination of social rented, private rented and owner-occupied properties. All the retrofit measures for this project were fully funded, and residents did not have to contribute. Changeworks acted as an intermediary throughout the process, and led the funding application.

📥 Read the case study


Oxford Tower Blocks refurbishment: Oxford, UK

The refurbishment works were undertaken by Oxford City Council and included a mix of general repair and maintenance,
various improvement works for aes¬thetic and safety reasons, as well as significant energy efficiency upgrades, notably the installation of external wall insulation across all five blocks.

📥 Read the case study


Wilmcote House, a ‘whole building’ EnerPHit standard retrofit: Portsmouth, UK

Wilmcote House had significant maintenance issues, and many residents were living in fuel poverty. Due to the cost and disturbance to residents, the Council decided against the demolition of Wilmcote House, and instead an ambitious retrofit project was undertaken.

📥 Read the case study (and in German)


External wall insulation at Raeburn Heights tower block: Glenrothes, UK

Raeburn Heights is 15 storeys high and has 61 individual self-contained 2-bedroom, electrically heated flats. The refurbishment works were undertaken by the council and included external wall insulation, ground floor upgrades, asbestos removal and health and safety upgrades.

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Internal wall insulation at granite tenement flat – Aberdeen

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Seaton North Multis, refurbishment and repair of building exterior – Aberdeen

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District heating installation at Tillydrone flats – Aberdeen

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Energy efficiency measures in Aberdeen City

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District heating installation at Granitehill - Aberdeen

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Creating a bespoke insulation solution for the residents of Haghill, Glasgow

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External Refurbishment by Rosehill Housing Co-operative, Glasgow

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