This repository contains the raw input data for the UK Multi-scale Open Source Energy Model (UK-MOSEM). The UK-MOSEM code is hosted at https://github.com/lhofbauer/uk-mosem and the documentation can be found at https://uk-mosem.readthedocs.io/. This repository only includes freely available and open data. With a few exceptions (see below) it includes all data required to set up and run the model. Energy Performance Certificate (and Display Energy Certificate) datasets are not included in this repository as Energy Performance Certificates can be considered to contain personal information. The datasets can be downloaded at https://epc.opendatacommunities.org/ for England and Wales, as well as at https://statistics.gov.scot/resource?uri=http%3A%2F%2Fstatistics.gov.scot%2Fdata%2Fnon-domestic-energy-performance-certificates and https://statistics.gov.scot/data/domestic-energy-performance-certificates for Scotland. The initial development of UK-MOSEM was supported by the Engineering and Physical Sciences Research Council, UK, under grant EP/R513143/1.