Objecting to a Neighbour's Planning Application
7 min read
A letter arrives from the council. Your neighbour has applied for planning permission to build something, and you have three weeks to comment.
This is a more awkward situation than objecting to a housing estate on the edge of town, and the questions people ask about it are different. Will they find out it was me. Am I allowed to object at all. Does it make any difference if we get on. This guide covers the practical side of objecting to a neighbour, and the specific grounds that tend to matter for extensions, loft conversions and outbuildings.
First, check whether your neighbour needs planning permission at all
A surprising amount of domestic building work does not need planning permission at all, because it falls under permitted development rights. If it does, the council cannot refuse it and there is nothing to object to.
Broadly, and this varies, a single storey rear extension, a loft conversion within volume limits, and an outbuilding in the garden can all be permitted development in the right circumstances.
Permitted development rights are removed in some situations. They are commonly removed in conservation areas, on listed buildings, on flats and maisonettes, and where the council has made what is called an Article 4 direction covering the street or the area. They can also have been removed as a condition on the original planning permission for a newer house.
If your neighbour has applied for a Lawful Development Certificate rather than planning permission, they are asking the council to confirm the work is permitted development. You can comment, but only on whether it genuinely is permitted development as a matter of fact and law. Whether you like it is irrelevant to that decision.
How long you have
The letter will give you a date, normally 21 days from when it was sent.
Most councils will still accept comments after that, up to the point the decision is made, and for a householder application the decision usually comes eight weeks after validation. Do not count on it though. Once the case officer has written their report, a late objection is much less likely to change anything.
Will your neighbour know it was you
Yes, in practice.
Your objection goes on the public planning register, and your name and address are published with it. Your email address, phone number and signature are normally redacted, but your name and the property you wrote from are not. Anyone can look it up, including the applicant.
Councils do not accept anonymous objections. An objection without a name and address carries no weight and may not be registered at all.
This is worth thinking about before you write. It is also worth saying that a measured, specific objection about daylight to a particular window reads very differently from a hostile one, and you may still have to live next door to this person in five years.
If you would rather not object in your own name, the options are limited. Another affected household can object in theirs. A parish or town council, if you have one, is a formal consultee and may raise the same point.
The grounds that actually matter for a neighbour's application
Householder applications turn on a fairly narrow set of issues.
Loss of daylight and sunlight
The most common winning ground. If a two storey extension goes up close to your boundary, it may take light from a window in a habitable room. Kitchens count for less than living rooms and bedrooms in most councils' guidance.
The technical test is in the Building Research Establishment guide BR209. You do not need to do the calculation yourself. If the geometry looks marginal, ask the council to require a daylight and sunlight assessment before determining the application, and say which of your windows you are concerned about.
Many councils also apply a rule of thumb known as the 45 degree or 25 degree test, measured from the centre of your nearest window. If the extension breaks that line, say so.
Overlooking and loss of privacy
New windows in a side or rear elevation that look directly into your habitable rooms or into the private part of your garden.
Look at the elevation drawings, not just the plans. Check what each new window serves. A landing window is treated differently from a bedroom window, and obscure glazing with restricted opening can often be secured by condition, which may be the realistic outcome rather than refusal.
Overbearing impact
A tall flank wall close to a boundary can be oppressive even where it does not take light or overlook. Officers do weigh this, particularly where the wall would be visible from a main window or from a sitting area in the garden.
Design and character
Whether the extension is subordinate to the original house, whether the materials match, and whether it fits the pattern of the street. Councils often have a supplementary planning document on house extensions setting out exactly what they expect, and it is worth finding. It will have a name like "Residential Design Guide" or "Householder Design Guidance".
If the site is in a conservation area, section 72 of the Planning (Listed Buildings and Conservation Areas) Act 1990 requires the council to pay special attention to preserving or enhancing its character and appearance. That is a statutory duty and it carries real weight.
Parking
If the extension adds bedrooms, the council's parking standard may require more off street parking. If the scheme instead loses a parking space, for example by building over a driveway, and the street is already saturated, that is a proper objection.
Trees
If a tree is coming down, check whether it has a Tree Preservation Order or is in a conservation area, in which case it is protected. Your council's website will tell you.
The grounds that will not work
These are the ones that come up most on neighbour applications, and none of them count.
Loss of your view. There is no right to a view in English planning law. If the real issue is that the building will loom over you, that is an overbearing impact argument, and it does count. Make it that way instead.
The effect on your house price. Never a planning consideration.
The boundary is in the wrong place. A boundary dispute is a private legal matter. Planning permission does not grant the right to build over a boundary, and it does not settle who owns what. If you think they will build on your land, that is a matter for a solicitor, and the Party Wall etc. Act 1996 may also apply if they are building on or near the line of junction.
Noise and mess during the building work. Controlled under separate legislation. The most the council will do is attach a construction management condition.
They did not tell me. Consultation is the council's job, not the applicant's. If you were not notified and you should have been, tell the council, because that is a procedural point worth raising. But the failure itself is not a reason to refuse.
We do not get on. Understandable, and irrelevant.
What to write
Keep it short. A householder objection does not need to be three pages.
State which application you are commenting on, by reference number. Say where you live in relation to the site, because proximity affects how much weight your comments carry. Then take each ground in turn, say what the drawings show, say what the effect on your property would be, and cite the council's own policy or design guidance where you can.
Be specific about your own property, because that is the part nobody else can supply. "The proposed first floor window would look directly into my daughter's bedroom, which is about nine metres away across the boundary" is worth more than a page of general concern.
Ask to be notified of the decision.
What happens next
The case officer will visit the site. They will read the objections, weigh them against the local plan and any design guidance, and write a report recommending approval or refusal.
Most householder applications are decided by officers under delegated powers, without a committee. If enough objections are received, or if your ward councillor asks for it, the application can go to the planning committee instead, where you may be able to speak for a few minutes. Contact your councillor early if you want that to happen.
If permission is granted, you cannot appeal. Only the applicant has a right of appeal, and only against refusal or against conditions. If the work that is eventually built does not match the approved drawings, that is a different matter, and you should report it to the council's planning enforcement team.
If you want to be sure you are making the points that count, we will check the application for free. Enter the reference and we will tell you what protects the site, what your council's own policies say, and which grounds are worth arguing.