Appeal against a refusal of planning permission for a side extension, rear extension and dormer

Mr and Mrs Moran contacted us after planning permission was refused for extensions to their house in Coulsdon, in the London Borough of Croydon. The proposal was a comprehensive scheme to modernise and reconfigure their home. It included a two-storey side extension, a single-storey rear extension and a rear dormer roof extension. The council refused the […]

Harrow planning appeal case study: side and rear single-storey extension

Appeal allowed for a side and rear single-storey extension at 118 Rowlands Avenue, Harrow Planning permission was refused for a new single-storey side and rear extension at 118 Rowlands Avenue in Harrow. Following an appeal, the decision was overturned and planning permission was granted. The proposal involved demolishing an existing side extension and replacing it […]

Planning Appeal Success – Conservatory Extension in Hillingdon

We get lots of enquiries from people who have built an extension believing it to be permitted development (and therefore not needing planning permission at all), only to discover that it does not quite comply with the permitted development rules in some way and that they are at risk of enforcement action. In this case, […]

Planning Permission Granted – Single-Storey Rear Extension in Hillingdon

This case concerned a planning application for a single-storey rear extension to a semi-detached house in Hayes. Although many rear extensions can be carried out under permitted development, the property is subject to an Article 4 direction which limits the depth of extensions that can be built without planning permission. As a result, a full […]

Brent appeal success: retrospective permission for single-storey rear extension

This appeal related to a single-storey rear extension at a residential property in the London Borough of Brent, for which retrospective planning permission had been refused. The council’s concerns were based primarily on its Residential Extensions and Alterations Supplementary Planning Document (update: a new version of this SPD was adopted in 2025). While the council […]

Appeal allowed – 6 metre larger home extension (prior approval)

Appeal against a refusal of prior approval for a larger home extension We win dozens of appeals each year for single-storey rear extensions. We are particularly successful with appeals against refusals of prior approval for larger home extensions — the six-metre extensions allowed on terraced and semi-detached houses (and eight metres on detached houses). In […]

Planning appeal allowed for six metre rear extension under prior approval (Redbridge)

This appeal related to a refusal of prior approval for a larger home extension at a semi-detached property in Redbridge. The proposal involved the demolition of an existing single-storey rear addition and the construction of a new single-storey rear extension with a depth of six metres. The council refused prior approval on the basis that […]

Planning Appeal Success – Larger Home Extension in Waltham Forest

This case concerned a successful appeal against a refusal of prior approval for a larger single-storey rear extension under permitted development. Since 2013, permitted development rights have allowed homeowners to extend further to the rear than the standard limits, subject to a prior approval process. For terraced and semi-detached houses, rear extensions of up to […]

Retrospective planning application for a single-storey extension

In this case, our client had planning permission for a single-storey side and rear extension with a depth of three and a half metres. During construction, however, the extension was built to a depth of just over six metres. That put the development outside what had been approved, so a retrospective planning application was submitted […]

Prior approval granted for six metre rear extension (Redbridge)

Larger home extensions are single-storey rear extensions which project up to six metres from the original rear wall of a house, or up to eight metres in the case of a detached dwelling. They are permitted under an additional permitted development regime which goes beyond the usual depth limits of three metres, or four metres […]