This document summarizes research on evaluating systems thinking interventions in the UK housing sector. The research examines the impact and sustainability of systems thinking approaches implemented by a major social housing organization. The research aims to evaluate key factors influencing the overall success and sustainability of the systems thinking interventions. It discusses Seddon's unique approach to systems thinking, which focuses on understanding current work performance. It also examines sustaining change through building motivation, the importance of evaluation, and the research design involving three categories of analysis: intervention substance, context, and process.