Guidance Developments of national significance (DNS): model conditions Explains the planning application process for developments of national significance (model conditions). Part of: Developments of national significance (DNS): guidance and Planning applications (Sub-topic) Organisation: Planning and Environment Decisions Wales First published: 25 July 2025 Last updated: 25 July 2025 Documents Developments of national significance (DNS): model conditions Developments of national significance (DNS): model conditions , HTML HTML