What does the 45 degree rule mean?

The 45-degree rule is a common guideline used by local planning authorities to determine the impact from a housing development proposal on sunlight and daylight to the neighbouring properties.

What is a 45 degree rule?

​ The 45-degree rule is assessed on both plan and elevation. An extension should not exceed a line taken at 45 degrees from the centre of the nearest ground floor window of a habitable room in an adjoining property.

Can you break the 45 degree rule?

The first considers the depth and width of the extension and the second looks at the height. If the proposed extension breaks one of the 45 degree lines it may be unacceptable, if it breaks both it would normally be found unacceptable. This rule should be applied to both single storey and two storey extensions.

How close to my Neighbour can I build an extension?

As a rule of thumb, a build that reaches 7.2 feet is considered acceptable and anything over that we do recommend speaking to your neighbour.

How close to the boundary can I build UK?

How close can I build to my neighbour's boundary? The party wall act allows an absolute right to build up to the boundary between you and your neighbour. It also allows you to build astride the boundary line, but only with your neighbour's consent.

45 Degree Rule Planning Permission Tutorial

Can my Neighbour build right to my boundary?

In general, your neighbour only has the right to build up to the boundary line (line of junction) between the two properties but there are circumstances when they can legitimately build on your land. You can give consent for them to build a new party wall and foundations on your land.

Can my Neighbour put up a fence on my boundary?

If it's within their property boundary, your neighbour has every right to do whatever they want, including installing a fence.

Can my Neighbour remove my fence to build an extension?

The Neighbour should have issued you a notice informing of the construction work going on. They should also have had the courtesy to discuss removing the fence with you in person, despite whether they own the fence. They should have asked for permission to work on your land!

Can my Neighbour build an extension on the boundary line?

If you wish to build a wall astride the boundary, you are required to obtain the adjoining owner's consent. The adjoining owner has 14 days to give written consent.

Can you block a Neighbours window?

It is possible to block a neighbor's window. Investing in landscaping options such as trees or tall shrubs, building a fence between houses, or adding window treatments to the inside of a home are viable options when blocking a neighbor's window.

How does the 45 degree rule work in planning?

In architecture, and more specifically, regarding planning permission with the local planning authority, the 45 degree rule is a technique used to determine if a proposed change or build like a single storey house extension will block sunlight & obscure how much of it can enter the windows of a neighbouring property, ...

How big can an outbuilding be under permitted development?

The highest part of an outbuilding (including cresting and finials) should be no higher than the roof ridge line of the existing house. If the proposed outbuilding is within two meters of the property boundary, maximum eaves height should be no higher than 3 meters to be considered permitted development.

Does the 45 degree rule apply to patio doors?

If a main window to a habitable room in the side elevation is affected, development will not normally be allowed to intrude over a line drawn at an angle of 45° in the vertical plane from the cill. For the purpose of these guidelines, patio doors and glazed French doors will also be treated as windows.

How far can you extend your house without planning permission?

The recent relaxation of permitted developments means that homeowners are now able to add extensions without needing planning permissions. You can add a home extension or conservatory up to six metres, or eight metres if your home is detached, without needing to apply for planning permission.

Can a Neighbour refuse planning permission?

In summary, your neighbour can have no influence on the development with regards to planning permission, as planning permission is not required.

How much can I extend my house?

You can extend up to four metres at the rear of a detached home, or three metres behind a semi or a terrace house. However, the extension must not take up more than half of the outside space and the materials used need to be in keeping with the original house.

Can my gutters overhang my Neighbours?

Legally speaking, you own the airspace above your land, thus your neighbours guttering should not overhang on your property and they are trespassing.

How close to my property line can I build a fence?

Typically, fences are installed anywhere from 2 to 8 inches from a property line in most areas. Some areas might allow to go right up to a property line, especially if you live in an urban row house where every inch makes a difference!

Can my Neighbour remove boundary posts?

If they're on your land (assuming you own the land), he can't remove them. The position of the posts isn't necessarily definitive of where the boundary actually is.

Can I refuse my Neighbour access to my property?

A request for access may be refused if the court is satisfied that your neighbour would suffer unacceptable interference or disturbance in their use or enjoyment of their land or some other form of undue hardship.

Who gets the good side of a fence?

The finished side should face toward your neighbor. Not only is this more polite, but it's the standard. Your property will look a lot nicer with the “good” side facing the outside world. Otherwise, your fence will look like it was installed backward.

Do you have to notify Neighbours permission for extension?

In short if you want to make your home bigger and are attached to (or are in close proximity to) another property, you will most likely need to notify the neighbour(s) about your extension.

Can my Neighbour screw things to my fence?

The short answer to this question is, of course, “no”. If you own the fence and you have not granted your neighbour permission to do so, they are not allowed to attach or nail things to your fence.

Can my Neighbour lean things against my fence?

It's simple: you can only do this if your neighbour says you can. If you lean something against or hang something on your neighbour's fence without permission and the extra burden on the panels causes damage to the fencing (which is very likely to happen sooner or later), you will have to pay for the repairs.

Who owns the fence between two houses?

When looking at the plans, the ownership is indicated by a “T” marked on the plans on one side of a boundary. If the “T” is written on your side of the boundary, you're responsible for maintaining it. If there's an H (although actually it's two joined Ts) the boundary is the joint responsibility of both parties.