Loft conversion guide - AJG Construction

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Loft conversion guide

Published on Sunday, 7th May 2017

Categories: Loft Conversions

Loft conversion

A loft conversion is the ideal solution for adding extra space to your home. It can provide a spare bedroom, a nursery, space for a hobby, a study or a gym, and it can add extra value to your property.

If you are considering a loft conversion, here is a guide to some of the things that need to be considered.


When assessing suitability, it is best to call on the advice of a local construction company as they are well placed to determine whether or not your loft is suitable for conversion. They’ll take into consideration the following factors:

Headroom and floor space – sometimes there won’t be enough head room, and the amount of floor space will be also be a deciding factor in whether your loft is suitable for conversion

Stairs and fire safety access – is there enough space to add stairs and make fire safety access available?

Structure – if the conversion goes ahead, there will also need to be changes to the structure of the loft; a construction firm will take into consideration to help determine if the conversion is feasible.

Windows versus skylights – you’ll need a way of adding light to the new extension; the two main options are skylights and windows. A construction company will advise on what would be the best option for your property.

Plumbing – if there is going to be a shower room or if you’re new loft conversion is to be used as a bathroom, plumbing is something else that will need to  taken into account.

Other factors – ventilation, heating, electricity and lighting will also need careful consideration.

Will you need Planning Permission?

A loft conversion should come under permitted development and planning permission will not be required. However, if you are considering altering the roof space and the completed conversion  extends beyond the volume allowance  of 40 m³, or 50 m³ for attached or semi-detached homes, then this would not count as a permitted development.

In addition, there are a number of other factors that you need to take into consideration if your conversion is to be considered a permitted development. Further details are available here.

Building Control

It might be necessary to speak to Building Control in order to help determine whether the existing structure of your home can cope with the added weight that will result from a new loft conversion.   There will also need to be sufficient sound control and insulation, and the stability of the roof/structure of the home will need to be assessed.

Beginning work on the conversion

If it has been decided that loft conversion can proceed, you’ll want to find a team of local experts that can begin work on a project. You might want to consider finding a local architect to help draw up some plans, or find a construction firm that specialises in conversions as they will be able to help with the planning side of the project.

As your project is likely to require many different skills in order for it to be completed successfully, choose a local construction firm that has a team of experts who can work together during the course of the project to help keep your costs down.

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