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Planning Advice for Common Projects
Haringey Council is keen to help Planning Permission applicants get the best advice and information possible to help them to get their application approved the first time.
Things to consider before you apply
The Planning Service is committed to making the most out of Haringey’s spaces, to make Haringey a great place to live for all residents, and to support local aspirations. The Planning Service will always seek to encourage applicants to make sure their proposals:
- Are compatible with the distinctive character of the area the site is located in
- Be of a style and scale appropriate to the area
- Protect or enhance the effects of valuable habitats and species
- Not harm the amenity of neighbours, ie not restrict sunlight to a neighbour’s property, or reduce their privacy by overlooking
- Include provision for disabled access to and within public areas
- Where possible, provide evidence that utility infrastructure (eg water, drains, etc) has capacity to cope with the proposed changes
- Not have adverse affects on surrounding areas eg generating air, water, noise or smell pollution
- That a change of use does not go against both national legislation, and locally does not harm the functionality of the area
Beyond these general principles, there are important considerations we make for specific kinds of properties, and restrictions we impose on how they can be developed. This will usually include if the property:
- Is in a conservation area
- Is listed
- Has a protected tree
- Or new development is at risk of flooding
Information and guidance on the most common types of projects we receive planning applications for:
Provided you do not live in a conservation area or listed building: until 30 May 2019 you may be able to construct a single storey rear extension to the depth of 3m-6m for a semi-detached or terraced house, or 4m-8m on a detached house without Planning Permission, as long as you go through the Prior Approval for larger home extensions (PDF, 467KB)
If your extension exceeds this depth, the Planning department will consider the following things:
- If the extension is subordinate (ie smaller in height, width and depth than the original building)
- If it avoids blocking sunlight to neighbouring properties, and that windows of the extension avoid looking into habitable rooms of neighbouring properties
- If it avoids reducing gardens to an unreasonably small size
- If it avoids impacting trees on the property or adjacent properties
If your extension is not subordinate, overlooks neighbouring houses inappropriately, or generally is not in line with the above advice, planning permission might not be granted.
Loft conversions and dormers
A loft conversion which creates extra space in your home can have serious impacts on the appearance of a house, on neighbouring properties and the streetscape. Therefore, the quality and appearance of your design will be important when considering if we grant Planning permission.
- Roof extensions like dormer windows should generally be located at the back of the property, away from the street
- Unless you live in a conservation area or listed building, rooflights do not usually require planning permission if they are no higher than 150mm from the plane/existing slope of the roof
- Many people apply for ‘dormer’ windows, which are windows that protrude from a roof. Dormers should be in keeping with the character of the area. For example, for a terraced house, a dormer designed with a gable or hip roof will be preferred to a more ‘boxy’ roof that is not in keeping with the area
- In general, a dormer window should be set a minimum of 1m from the edge of either side of the gable roof, or 0.5. metres from the edges of a hip roof
- Generally, altering the shape of a roof is not granted planning permission because of its impact on the streetscape. However, tuning a flat roof into a green roof may be looked on favourably
Replacement of windows and doors
Provided you are not living in a conservation area or listed building, and there is no change in material, colour, size of design, you can replace single glazed windows with double glazing.
If you are planning on replacing the material of your windows, for example replacing timber windows with uPVC windows, you will need planning permission.
If you live in a conservation area or listed building, it is likely that planning permission will be required to change windows.
Conversion of houses to flats
There are a number of considerations that the Planning department will make before granting permission for the conversion of a property into smaller flats, including impacts on neighbours, and the overall affect this might have on an area over time. Planning is concerned with ensuring that our towns and rural areas are designed in a functional way, and conversions of housing to flats can risk:
- too many Houses of Multiple Occupation in one area, and reduce the number of family houses
- adding pressure to local infrastructure (cumulatively, where lots of houses are converted into flats in one area)
These and other considerations are used to judge if an application will get planning permission or not. The decision will depend on the specific circumstances and planning history of an area, and as such it is difficult to provide general advice.
Applicants are encouraged to use our pre-application advice service if they are interested in taking on this kind of project.
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