Loft Conversions Requirements

Loft Conversions Requirements


A loft conversion is an extremely specific building area which requires specialist builders to install and there are number of regulations that must be complied with.


This can best be explained via examples;


  • It is a requirement that natural ventilation is provided to the underside of your current roof.

  • It is a requirement that the loft has a staircase installed

  • Each room within the loft – and the roof as well – must be insulated

  • Any existing doors within your house may need to be changed to ‘fire rated’ doors

  • Any added power points and lighting need to have relevant electrical installation & testing certificate issued.

Regrettably, a lack of internal head height -within a loft – prevents many properties from having a loft conversion carried out.


The required head height, which must already exist within a present non-converted loft, is a height between 2.2 meters to 2.3 meters, which enables one to create the useful loft space needed. This measurement is calculated from the highest point of the loft, which is normally below the ridge line, down to the plasterboard of the ceiling immediately below. Once this internal height exists, then most likely you have enough space to be able to convert your loft in the useful luxurious space needed. If the measurement is much less than the required internal head height, then is not worth converting the loft because, in a converted loft of very low ceiling height will certainly not appeal to potential buyers neither will it increase the value of a house.


Building regulation approval is mandatory before any work can be carried out. No building approval – no work can start. “Building Regulations” are in place to guarantee that any project (loft conversion work) undertaken is built to a standard that is practical, useful and environmentally safe and friendly. Never rely alone or promise that you will be approved for building regulations after submitting an application. Get the relevant certificate in your hand as quickly as possible. Unless you obtain your building certificate from the building inspector at the completion of the job, you might not be able to sell your house. Keep building certificate safe. Remember, it is a legal document that you will need it for future reference.


What is the next step to a loft conversion?


To see if you can convert your loft into decent loft space, contact LLAC – London Lofts and Construction and we will give you free advice, or talk to your local authority building control department. Make sure that you get all the required approvals, in writing, from your local authority. And if the council says you don’t need planning approval, get them to put that in writing too. Verbal agreement does not stand up much. Your property is an investment and also a home. There’s nothing worst than losing it all because of bad planning or relevant approval. Fear not, LLAC is here for you. Not just to give you a quality build but to ensure that you have everything required from start to finished – complete peace of mind. Give us a call today!



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