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The Sustainable Design Toolkit aids decision making on sustainable design at the initial concept, pre-planning and planning application stages for development in Hertfordshire.

By using open questions and best practice guidance, the toolkit helps stakeholders consider and implement the principles and practice of sustainable design in a highly visual, intuitive and engaging way.

Virtual townscape

Navigate the virtual townscape and start exploring the interactive building models and comprehensive suite of guidance using the topic tabs, questions, hotspots and more information tabs.

Technical Modules

Technical modules across a range of aspects such as climate change adaptation, design, and landscape and biodiversity can be accessed via the links on this page. For each topic area information is given about the facts, basic principles, solutions and case studies, based on up to date policy and guidance.


Climate change adaptation


Energy and climate change

Landscape and biodiversity








Toolkit PDFs

Intuitive and interactive PDF versions of the Sustainable Design Toolkit are available. The PDFs can be used to create a Sustainable Design Statement to submit as part of a planning application or pre-application submission, and to inform and create development and design briefs for individual sites or schemes. The PDFs can also be downloaded and printed for reference and use with clients and stakeholders.


Please note the Sustainable Design Toolkit does not prescribe any particular design solution or set any policy requirement or standard over and above those set out in any relevant Development Plan or legislation. The Sustainable Design Toolkit should always be read and used in conjunction with the policies contained in the relevant Development Plan and any applicable legislation and regulations.