It is a national requirement for the application types below to be accompanied by a Design & Access Statement: 

• Major Development
• Listed Building Consent
• Development in a Conservation Area or World Heritage Site consisting of: 
  • the provision of one or more dwellings or 
  • a building or buildings where the floor space created is greater than 100m² 

More information on what should be included in a Design & Access Statement is available in the National Planning Policy Guidance (external link) 

Heritage Statements 

Heritage Statements should be submitted for the following types of application: 

• Listed Building Consent
• Planning applications within the grounds of a listed building
• Development within a conservation area
• Development affecting a property covered by an article 4 direction 

More information on what should be included, as well as template that can be adapted for your own use can be downloaded below: 

• Heritage Statement Guidance Document 2017 (pdf) 
• Heritage Statement Template 2017 (pdf) 

Where both documents are required, it is perfectly acceptable to produce a combined Design, Access & Heritage Statement.