Planning a home extension is an extremely exciting, but slightly perhaps daunting, time. There are many considerations from finding the right professionals for the job to choosing the right design and budget. One factor deliberated by many is ensuring that all the extension regulations are followed and that planning permission is sought when legally required. Here, we explore why you’d want to extend without planning permission, how far you could extend your home and any rules that you may need to follow.

Benefits of extending without planning permission

An extension to a residential property may be considered a permitted development, which doesn’t require a planning application to be submitted. The main benefit here is avoiding the twelve-week wait that seeking planning permission takes, meaning you can start your project much sooner. Meanwhile, you’ll also save potentially hundreds of pounds on the application fees.

Are there any conditions or limits to extending without planning permission?

Extending your home without planning permission does come with some restrictions, but these are quite reasonable and shouldn’t affect your project too much.

  • The extension should be single storey and no higher than 4 metres.
  • No part of the extension should extend beyond any wall facing a road if it forms the front or side of the original property. Extensions at the rear of the home tend to be the most popular.
  • Any exterior materials used must be of similar appearance to the existing property. This ensures the extension ‘flows’ from the original property.
  • If opting for a side extension, this cannot be wider than half the width of the original property.

Terraced and semi-detached homes

Without planning or neighbour permission, extensions on a terraced or semi-detached residential property must be no taller than 4 metres in height, no longer than 3 metres and must be single storey.

However, the neighbour consultation scheme allows homeowners to extend a terraced or semi-detached property as far as 6 metres, as long as any effected neighbouring parties agree to the extension. Neighbours have 21 days to object, before your local authority then have a further 21 days to give the ‘go-ahead’. A lawful development certificate can take up to 8 weeks to be issued, at which point you can begin your larger extension project.

Detached homes

Similar height restrictions apply to detached homes, yet you can extend as far as 4 metres to the rear of the home without permission from the authorities or your neighbours.

The neighbour consultation scheme allows detached homes to be extended as far as 8 metres and the process is identical to that of attached homes. That’s quite the extension!

Rural and listed homes

If you’re lucky enough to live in an area of outstanding natural beauty or within a conservation area, then your extension must be single-storey and not more than 4m tall. The building cannot be clad with stone, pebbledash, render, timber, plastic or tiles.

Listed homes require Listed Building Consent, no matter the project. Planning permission may be required if the development is within the curtilage of a listed building. In some cases, though, building consent may have already been granted. We can support you with this.

If you have any further questions on extending your residential property, with or without planning permission, then get in touch with Keenan Project Designs. Our professional and knowledgeable team of architects are accustomed to delivering projects in Rugby, Warwickshire, West Midlands, Worcestershire, and beyond.

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With Your Project 0800 233 5787

Get In Touch To See How We Can Help With Your Project 0800 233 5787

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