Consultation Scheme

The vast majority of conservatories and small extensions built these days will not require planning permission due to the permitted development rules. However those that are larger than average will need to go through the planning permission process. To give a little more breathing space to builders and homeowners the government has introduced the Neighbour Consultation Scheme in a bid to allow larger extensions without the need for planning.

The Neighbour Consultation Scheme was introduced as a sort of interim measure for rear extensions to be built that are larger than those currently allowed under permitted development, but without homeowners needing to get full planning permission. It is in place for a period of six years only from 2013 and work must be completed by 30 May 2019.

Size restrictions

The current permitted development rules state that rear extensions can be up to 4m – but these new rules have doubled that to 8m for detached houses and from 3 to 6m for terraces and semi detached buildings. Obviously this applies to homes where no extensions have previously been built.

The maximum height is 4m and maximum eaves height must be a maximum of 3m if the construction is within 2m of the property boundary.

Other restrictions

There are already a number of restrictions in place under permitted development and your extension will need to comply with those too.

  • Your extension cannot cover more than half the land surrounding the house when it was built. Remember that this includes any extensions or additions added since it was built
  • The materials used should be similar to those used in the existing house – or in the case of conservatories, it should be sympathetic
  • No verandas, platforms or balconies are allowed – you will need separate planning permission for these
  • No chimneys, flues soil pipes or antennae are allowed on the building
  • Your home should not be in a conservation area or be listed – these homes will need planning permission

The Neighbour Consultation Scheme Process

If you choose to have one of these larger than average extensions built and you want to avoid full planning permission, you must follow the recommendations regarding neighbour consultation. This process is quite detailed but is less onerous than the planning process which can be lengthy and expensive.