The subject of the project is a deep energy modernisation of multi-apartment buildings in the City of Stargard. The project covers the following buildings: 1. St. M. Konopnicka 2, 2. ul. M. Konopnicka 3, 3. ul. M. Konopnicka 10 a-b. The project plans, among others, to modernise the hot water system, modernise the central heating system, warm the exterior walls, replace windows in the buildings covered by the development. The implementation of the projects will contribute to socio-economic benefits. The implementation of the project will reduce greenhouse gas emissions. Interventions to improve the energy performance of buildings will also help to increase the thermal comfort of users, thanks to higher indoor temperatures. Higher temperatures can be achieved because by lowering the unit energy costs of consumers, they decide to increase the temperature in their premises. The implementation of the project will also contribute to reducing environmental degradation by reducing pollution affecting the atmosphere.