• Looking for a smarter way to manage your heating this winter? We’ve been testing the new Aqara Radiator Thermostat W600 to see how quiet, accurate and easy it is to use around the home. Click here read our review.

Could second story extension work?

Joined
4 Mar 2025
Messages
5
Reaction score
0
Country
United Kingdom
We live in a two bed Victorian terrace, we are end of terrace. We are hoping to add a third bedroom. Can anyone advise if we may be able to build up on top of the ground floor extension? On the floor plan it says conservatory but this is a solid brick extension. What would we need to do for this process? We can’t see neighbours who have done this but hope it could be an option so we could shift the bathroom to one side and add another bedroom to the back. Many thanks for any advice
 
Floorplan here
 

Attachments

  • IMG_3721.png
    IMG_3721.png
    391.1 KB · Views: 50
You'd need planning permission which I doubt you'd get.

If you do then if the founds are ok then build away. Maybe get a trial hole dug before you do anything.
 
We live in a two bed Victorian terrace, we are end of terrace. We are hoping to add a third bedroom. Can anyone advise if we may be able to build up on top of the ground floor extension? On the floor plan it says conservatory but this is a solid brick extension. What would we need to do for this process? We can’t see neighbours who have done this but hope it could be an option so we could shift the bathroom to one side and add another bedroom to the back. Many thanks for any advice

The first thing I'd do is check the foundations to see if they are suitable. If not, then you can plan a whole new extension and extension footprint, without being constrained to what's there. Bare in mind the new cavity wall thickness/Part L reg's etc.
 
Experience.

The only way to know for certain is to formally apply for PP. No one can tell you otherwise: even pre-app advice isn't binding.
 
Last edited:
Thanks - in terms of the planning permission application would we need to get an architect to draw up plans before submitting? And is there a cost to applying for planning permission? Sorry we are very new to this kind of thing
 
You'd be looking at anything from about £500 for someone doing private jobs to a couple of £K+ for a proper firm to put some drawings together, local authority planning fees are on top, they're £258 atm but about to go up to £528 as of April 1st. But if you're looking at doing this extension then you may as well consider a loft conversion.
 
If you are any good at drawing you can do them yourself. They don't have to be fancy CAD drawings and you will find guidance on the council's website as to what is required. Generally elevation before and after. floor plans before and after, section through works (all 1:100) then site or block plan (your garden including where neighbours adjoin (1:200) They usually like a roof plan (despite the roof shape being clear to anyone who can read a drawing which one hopes would be a prerequisite for being a planner): I do these at 1:200. Finally you'll need an OS plan at 1:1250 showing your place in the middle. You may have one in your deeds or plenty places on line (around £25-30)
 
RTPI Town Planner here, I would advise you use the website planning geek for help on householder PD allowances it’s pretty useful and is still used by many in the industry.

In order to ascertain whether it would be PD or not we’d need more details on location postcode etc (please don’t post this publicly), depth of extension at ground floor (anything over 3m from original house renders PD route at first floor null and void here).

Don’t pay for an OS plan the planning portal now allows you to create one of these for free when you submit your application
 
Don’t pay for an OS plan the planning portal now allows you to create one of these for free when you submit your application
But don't they charge something like £75 admin fee for submitting the application whereas you can buy an OS plan for between £15 and £30? Not exactly free!
 
good point wessex, obviously when we’re submitting at work you use the portal because of the vast number of applications you’re dealing with but if the council are willing to accept a submission direct go that way.

Just check first though because although it contravenes the Development Procedure Order some councils refuse to accept applications unless made through the portal.
 

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.


Are you a trade or supplier? You can create your listing free at DIYnot Local

 
Back
Top