| BPIE | Buildings Performance Institute Europe |
| CAD | Canadian dollar |
| CAP | Climate Action Plan |
| CEB | Council of Europe Development Bank |
| COP26 | 26th United Nations Climate Change Conference of the Parties |
| CoR | European Committee of the Regions |
| EC | European Commission |
| EISA | Energy Independence and Security Act |
| EPBD | Energy Performance of Buildings Directive (EU) |
| ESCO | Energy service companies |
| ESG | Environmental, Social and Governance |
| ETS | Emissions Trading System |
| EU | European Union |
| EUR | Euro |
| EV | Electric vehicle |
| GHG | Greenhouse gas |
| Gt | Gigatons |
| IoT | Internet of Things |
| NDC | Nationally Determined Contributions |
| NZEB | Net-zero energy building, nearly zero energy building or net-zero emissions building |
| OECD | Organisation for Economic Co-operation and Development |
| PM | Particulate matter |
| SBS | Sick Building Syndrome |
| SME | Small and medium-sized enterprise |
| USD | United States dollar |
| ZEB | Zero energy building or zero emissions building |
| ZEH | Zero energy house |
Decarbonising Buildings in Cities and Regions