How Much Does A Basement Conversion Cost?

Renovation projects can either become an asset or a liability. That is why it is important to seek help from an architect in Oldham when it comes to basement conversion projects.  

Residents from Rochdale or Ashton-under-Lyne can take advantage of basement conversion services to add storage and more room to breathe. After all, it is an effective strategy to add more value to your property. 

Cost for basement conversion  

If you are eyeing a basement conversion project, you could be facing around £100,000 for a full conversion. That includes digging out and extending your basement. But of course, it would be much less expensive and easier to convert an existing basement than starting from scratch. 

You can seek help from a local and trusted architect, who can provide a planning permission, to assist you in getting a basic conversion without extra architectural features.

But note that there are prime locations in some parts of the UK, particularly London and some areas in the South East. 

Good news though if you are living in Ashton-under-Lyne or Rochdale because you can get a much better offer from a local and trusted architect.  

Some basement conversion projects may not require planning permission as long as it is an existing residential cellar or basement to be converted into a living space.


·         £2,700 to £3,500 + VAT per square metre for basement shell and core construction


This will cover the dig out and creation of a watertight concrete box, which includes:


o   Perimeter walls

o   Superstructure steelwork and underpinning

o   Concrete floor slab

o   Roof slab

o   Ground and foul water drainage

o   Architectural glazing 

·         £1,200 to £4,000 + VAT per square metre for basement fit-out 

This will cover equipment and finishes, labour and fixtures, and fittings for internal elements of your new basement, which includes:

o   Stud walls and room formation

o   Lighting

o   Flooring

o   Electrics

o   Tiling

o   Plumbing

o   Sanitary ware

o   Painting and decorating

o   Wardrobes and built-in storage

o   Kitchens 

Can I convert my basement?

One of the most important things to do when planning to convert your basement is to talk to an architect in Oldham and Rochdale. That is because you need a guide through the whole process.  

Part of your decision is how you are going to use your converted basement. So, if you intend to use it as a living space, make sure that you satisfy the following.

  • Created enough space for the purpose
  • Has good access routes for bedrooms
  • Able to have a comfortable internal environment


A local and trusted architect can give you an idea on how and where to begin depending on the type of basement that you have.


If ou are looking for a way to maximise your budget without sacrificing the results of your basement conversion project, hiring an architect in Oldham, Rochdale, Ashton-under-Lyne is a crucial move. 

Note that the total expenses will highly be dependent on how you are going to use the extra space here in the first place. Thus, you can always ask for help from local and trusted architect or an architect in Oldham to get started today.




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