A garage can be converted into a number of different types of rooms. It can add value to the property by up to 20 percent. 

Here are the different ways it can be used as:

  • Gym
  • Home Office
  • Study Room
  • Bedroom 
  • Extended existing rooms such as a living room, kitchen etc.

Planning Permission

To convert a garage, it is paramount to first carry out a planning check. A planning expert will look into historic planning permission on the house which may have conditions stipulated restricting garage conversions.  

It’s common to see that many homeowners are not aware of the planning implications that a development could have, whether existing or proposed. We always carry out a pre-assessment of any site prior to commencing any building works or development. 

If the house doesn’t have any restrictive conditions, then as long as the proposed room is used in connection with the main house by its occupants for residential purposes then you may carry out the works without applying for planning permission. 

It's common to see that many homeowners are not aware of the planning implications that a development could have, whether existing or proposed.

Building Control

Although the conversion may not require planning permission, in most cases, it would be subject to Building Control’s consent. With the detailed plans provided by the architect, an application is submitted to notify the local council and building inspector of the proposed works. They will carry out an inspection of building works to ensure it complies with the regulations. They will look at the structural soundness of the building works, the damp proof course, the insulations, electrics, ventilation and fire proofing.

 

Party Wall

A party wall agreement may be required where the garage wall adjoins a neighbouring property. 

The agreement can cost around £1,000, however if you are able to get your neighbour to sign a waiver, you may be able to alleviate this cost. 

 

Costs

The cost of the garage conversion is based on the room type, design and materials. To complete the assessment and design of the proposed garage conversion it usually costs around £2,000. If it requires any structural calculations or advice, then this can cost around £500.

In terms of the building works, it could cost as less as £5,000, however as average and expected rate for a typical conversion would be around £20,000.