top of page
  • Neil Harrison

New 'upwards' home extension rules – what's that all about... and what about the planning permis...

Updated: Jun 15, 2023

Recently here on this blog we highlighted the key new Permitted Developments which makes considering an extension or house renovation to an extent easier to achieve, in view of the fact that in certain circumstances planning permissions do not need to be sought.

A key element in these new regulations was that they not only apply was to traditional ground floor extensions, but also various 'upwards' type home extensions too- that is adding extra storeys on various types of residential properties and houses . The highly informed Urbanist Architecture - - now offers information on certains ins and outs of this quite revolutionary opportunity....

new regulations

Adds their experts, “You may have heard on the news or read in the newspapers that from September 2020, you can in the right circumstances - use these d

Check out some of this aspects of the new permitted development rights reference putting up an upward extension on existing homes.

important clause

A key thing to highlight, say the Urbanist experts, is the very important clause in the legislation that apparently a lot of the media coverage has often ignored. This is that if your home was built before 1948 – then you can't do an upwards extension – take note - you can't!

extra floors

So, if you have been sitting in your Victorian terrace house or your 1920s semi, imagining all the things you could do with the some extra floors above, unfortunately these new no planning application rules just don’t apply to your property.

Its quite clear - houses built before 1 July 1948 or after 28 October 2018 reference extending homes, or 5 March 2018 (for adding new flats) cannot be extended upwards without planning permission – take note !


Believe it or not, that’s roughly 38% of all homes which are thus excluded from these latest 'no planning permission' regulations . You can, of course, still go for it, but you must apply for planning permission.

That easier, less complicated, 'no planning permission' route to building that upwards home extension of yours isn’t open to you..... right now!

clearly older

A further matter of note. Urbanist report that they've seen several applications where the applicant has just ticked the 'built between 1948 and 2018' box when the house is clearly older. Council planning officers are not stupid - they quite rightly point out - and these applications have been refused for sure. Only put in a Prior Approval application for an upwards extension if you’re certain the house was built after July 1948 – simple – there's no getting out of doing so it seems.

no qualification

Take note your property also will not qualify for 'no permission' upward extension if it is in a conservation area, an area of outstanding natural beauty, a site of special scientific interest, a national park, the Broads or a World Heritage Site. And you can’t use the new permitted development right (PDR) on a listed building..... take note!

ins and outs

There you go – and take note there are plenty of other ins and outs to review and be aware of and we'll put you in the picture further here soon - thanks to the Urbanist team. Be sure to check back and see what else you should be aware of when it comes to planning your 2021 home extension.

We at Mint Builders in Cheltenham and The Cotswolds are here to help with any questions and ideas relating to the priority planning and organisation of your home extension or renovation whatever type it may be. We, of course, have expert contacts on hand to help ensure your new extension gets sorted without any expensive blunders, issues or planning problems.

Please request your project planning and quotation visit to refurbish or extend your home for now and on into this uncertain COVID-19 future of ours. Contact Mint Builders on 07734 211958 or email

0 views0 comments


bottom of page