Window Replacements

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Before you apply, please find out if your building is listed or in a conservation area.

Replacement of windows in Conservation Areas (Class 7A)

Within conservation areas - you do not now require to apply for planning permission to alter or replace a window that is part of the building's rear or side elevation, unless the side elevation fronts a road. There are no restrictions on materials, colours, proportions, or means of opening, but we would encourage you to replicate the design and appearance of the existing window, particularly where the window is original or traditional in construction or design.

You do not require planning permission to alter or replace a window that is part of the building's principal elevation (or side elevation that fronts a road) if the window to be altered/replaced would be the same or substantially the same as the existing window, as regards the:

a.      manner in which the window is opened and closed
b.      number, orientation, and colour of panes comprised in the window, and
c.      dimensions and colour of the frame of the window or any astragal bars comprised in the window

If the works do not meet these three criteria, then you must, before beginning the development, submit an application to the council for a determination as to whether the Prior Approval of the authority will be required in respect of the design and external appearance of the proposed alteration to or replacement window. Listed Buildings will require Listed Building Consent and must meet the requirements set out in SG9: Historic Environment.

The following information should be submitted with any Prior Notification/Approval application for windows in conservation areas to assist with our assessment:

• the existing and proposed dimensions,
• existing and proposed number and orientation of panes,
• existing and proposed colour of framing,
• details of any glazing bars, horns, or decorative/stained/coloured or leaded glass—existing/proposed,
• existing and proposed method of opening,
• existing and proposed materials,
• a plan indicating the site
• photographs of existing windows
• manufacturer's specification/drawing, if available.