You asked: What happens if I build an extension without planning?

Whether it’s an outhouse or an extension, failure to comply with the rules will mean you’re committing a planning breach – which isn’t good! In the worst-case scenario, you’ll be given an enforcement notice to resolve the issues. This can sometimes result in taking down the whole of the building completely.

What happens if you build an extension without planning permission?

If you build without planning permission, you may not be breaking any rules. However, if there is a planning breach, you may have to submit a retrospective application or even appeal against an enforcement notice.

How long can an extension be built without planning permission?

The answer is no. You do not need planning permission for all extensions depending on the size, without planning permission you can build up to six metres or eight if your house is detached.

How far can you extend without planning permission UK 2021?

If your extension is one storey, it can extend up to six metres from the property – although if your house is detached, this is extended to 8 metres.

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.

What is the 45 degree rule?

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. If you’re thinking of a home extension or a change to your home, and need some advice, get in touch!

How much does a single story extension cost?

Single storey – A single storey extension in London will usually cost between £2,000 and £3,000 per sqm (£185 and £280 per square foot). £2,000 per sqm would represent cost-effective finishes and products.

What are the rules for extensions?

For all extensions

Extensions cannot be higher than the highest part of the existing roof; or higher at the eaves than the existing eaves. Where the extension comes within two metres of the boundary* the height at the eaves cannot exceed three metres.

Do you need planning permission after 10 years?

If you want to be certain that the existing use of a building is lawful for planning purposes, or that your proposed development does not require planning permission, you can apply for a Lawful Development Certificate. … a condition or limitation on planning permission has not been complied with for more than 10 years.

Can I build a side extension without planning permission?

A side return extension is considered to be permitted development (PD) — in other words, it doesn’t need planning permission as long as it satisfies certain criteria. … If the extension is within two metres of a boundary, maximum eaves height should be no higher than three metres to be permitted development.