The Royal Institution of Chartered Surveyors (RICS) has published details of its response to the European Commission's call for evidence on Housing Supply and Affordability (Regulatory Simplification), recommending measures to reduce barriers to housing delivery while maintaining environmental, quality, community, consumer and financial safeguards. Drawing on evidence from members in Greece, Hungary, Portugal and Spain, RICS identifies planning and permitting delays, fragmented procedures, regulatory uncertainty and unstable policy frameworks as key obstacles, noting that many arise from national and local implementation rather than EU legislation itself. RICS recommends proportionate and consistent regulatory implementation, clearer guidance, reduced administrative duplication, digitalised and better co-ordinated planning and permitting procedures, shorter approval times and fast-track permitting for qualifying affordable-housing projects. It also supports stable long-term regulatory frameworks, renovation and adaptive reuse of existing buildings and measures to increase housing supply alongside demand-side support. RICS highlights the International Cost Management Standard and its New Rules of Measurement as tools for improving construction cost transparency, project comparability and confidence in financing decisions.