Planning validation checklists - Householder application for works or extension to a dwelling

Visit the Planning Portal to find out more.

Fee

£258

What to include with your application

Refer to detailed guidance to help you submit the correct requirements

For a householder application for works or extension to a dwelling, you'll need:

  • correct application form
  • signed and dated ownership certificate
  • site location plan, if the proposed works impacts the highway the red line must include means to the highway
  • block plan
  • elevation plans – existing and proposed
  • floor plans – existing and proposed
  • a design and access statement is required for applications within a conservation area, where the new floor space would exceed 100m²
Additional information that may be needed

Where the works are required to assist a person with disabilities in their everyday life, evidence must be provided to support this application in the form of:

  • blue badge, or
  • a copy of award letter from the Department for Work and Pensions

Check you’re not building over a gas pipeline

This information is provided by SGN Gas Safety.

Mitigating the risks of overbuilds on gas pipes. It is the responsibility of the applicant to carry out these checks.

There are a number of risks created by built over gas mains and services; these are:

  • pipework loading – pipes are at risk from loads applied by the new structure and are more susceptible to interference damage
  • gas entry into buildings – pipework proximity increases risk of gas entry in buildings
  • leaks arising from previous external pipework able to track directly into main building from unsealed entry
  • occupier safety – lack or no fire resistance of pipework, fittings, or meter installation (means of escape could be impeded by an enclosed meter)

Please note therefore, if you plan to dig, or carry out building work to a property, site, or public highway within our gas network, you must:

  1. check your proposals against the information held online (visit Linesearch beforeUdig's website) to assess any risk associated with your development
  2. contact our Plant Protection team to let them know. Plant location enquiries must be made via email, but you can phone us with general plant protection queries
    Telephone: 0800 912 1722
    Email: plantlocation@sgn.co.uk

In the event of an overbuild on our gas network, the pipework must be altered, you may be temporarily disconnected, and your insurance may be invalidated. 
 
Our free Damage Prevention e-Learning only takes 10 to 15 minutes to complete and highlights the importance of working safely near gas pipelines, giving clear guidance on what to do and who to contact before starting any work.

Visit SGN's website for further information.