top of page
  • Neil Harrison

House Extension ideas you can build without the need to sort out planning permission

Updated: Jun 28, 2023

We at Mint had a most enjoyable and successful visit to the ever popular Grand Designs Live show at London’s Excel earlier in the month. We promoted the Show here on this Blog a while back, but if you didn’t make London then not so far away at the NEC is another show ‘date’ for Grand Designs Live that you could consider. That’s on October 9th -13th.

From the show - and spotted online by our Editor - was some more useful clarifying information on the important issue of planning permission for home extensions. There’s been key changes of late, as you may know, including a further extension last month by the Government of the key permitted development rights also highlighted recently here on this blog.

take advantage

Grand Designs Live knows all about those home extensions that due to recent changes do not now need planning permission

Grand Designs Live has tabled a useful quintet of house extensions you can ‘get stuck into’ without planning permission. Whether you want to build up, out, or in the garden, they report how you can extend your home by taking advantage of the latest permitted development rights.

save time, money and hassle

When extending your home - their handy information schedule highlights - the prospect of navigating the planning process can be daunting. As you may know, the great news is that there are a number of extension projects that can be completed without applying for planning permission, saving time, money and hassle.


The secret is - stick to certain guidelines relating to size and appearance of your new addition. Here are facts from the ‘Grand Designs Live’ schedule of the ‘things you can do’ with no planning permission needed.

redundant ‘side’ land

Making the most of land to the site - nice!

Create valuable extra living space by incorporating the redundant strip of land to the side of the house (often seen in period terraces). It’s the ideal way to create a larger kitchen; by removing the original exterior wall you can create a space that stretches across the full width of the house to the adjoining boundary.

guidelines changes

Recent changes to Permitted Development guidelines in England mean that in most areas (not on designated land) you can now add a single-storey rear extension up to eight metres from the original rear wall of a detached house (previously it was four metres), or six metres from all other houses, such as semi-detached or terraced properties (previously three metres).This allows you far greater scope to create a large, open-plan space that connects to your garden.

rear extensions

Two-storey rear extensions are also possible (not on designated land), if it is at the rear of the dwelling and in addition must not exceed 3m in depth or be within 7cm of the back boundary. A two storey extension will allow you to increase the size of your bathroom or add another room.

try the attic

So useful loft extension spaces - that extra space you always wanted

To fall under the rights, an attic extension must not exceed 40 cubic metres for terraced houses or 50 cubic metres for detached and semi-detached houses. This still provides plenty of scope for the creation of one or more dormers to make space for a large master bedroom and en suite, or even two smaller bedrooms and a bathroom.


Outbuildings can offer the most usable stylish spaces to live with and enjoy

You can construct many different styles of outbuildings, which you could use as a separate garden office, a home gym or perhaps an additional living room. Any new structure must be single storey and not exceed 50% of the land surrounding the original house – any existing sheds or outbuildings are also included within this total.

Whateverextension you need for your home, Mint offers a full development and finishing service to help give you home more space and add value too. We are here to help with any questions or concerns you may have and we can with ‘ins and outs’ of planning issues . We have all the expert contacts on hand to help you.

Whatever your need, please request your quotation to extend, improve or refurbish your home . Contact Mint Builders on 01242 279739or email

0 views0 comments


bottom of page