The high share of energy consumption of the residential sector and the low renovation rate of existing buildings move through the need of finding solutions that facilitate the retrofit process. In this context, a set of retrofit solutions packages are studied for different multi-family house typologies located through Europe. Intervention on the envelope follows the actual national minimum requirements for energy efficiency, different efficient heating and cooling systems are recommended for the different building typologies and renewable energies technologies are considered for contributing to the reduction of energy consumption. Energy performance of the retrofit packages, energy savings and running costs are assessed through dynamic simulations for all the studied cases. The available documents are: - BuildHeat_T4.3_Database_ONLINE.xlsx: dataset of the simulation-based results. The studied retrofit packages applied to the building typologies in different locations are modelled in the TRNSYS environment and dynamic simulations through one year are run. The file collects energy performance of the reference case, energy performance of the retrofit case, divided by energy use (space heating, space cooling, Domestic Hot Water use, mechanical ventilation), and energy cost. - D4.4_BuildHeat_Report on systemic retrofit packages.pdf: document where the modelling of the project case studies is described in detail. The report includes energy performance, energy savings and energy costs. These case studies are used as reference case for the retrofit protocols definition. - D4.5_BuildHeat_Retrofit_protocols.pdf: Description of the studied building typologies, locations, retrofit packages including intervention on the envelope, replacement of the HVAC system and adoption of renewable energy technologies. This document contains the results reported in the dataset.