Loft Conversions

Why convert your loft?


A loft is wasted space that is traditionally used to store old boxes, prams, Christmas Decorations and other items you don’t use anymore. By utilising this space more effectively you can save the hassle of moving and improve the value of your home.

According to the Nationwide Building Society the average cost of moving up the property ladder would be £34,000 [i] , this is in addition to estate agent’s fees, of around £2,500, solicitors fees £1,500, stamp duty, removal fees £1,500, time off work;  a total of approx £7,500 and they have not even moved yet!

Converting your loft could add as much as 21% to the value of your home, easily outweighing its construction costs. (Source: Nationwide BS). In addition approx 30% of your properties space is taken up in the Loft area.

Imagine having your own space, away from the children and stresses of family life: a space where you could close the door and forget the world exists.  Imagine being able to lie in your bath and look up at the stars, your own personal beauty spa.

What are you looking for?

  • An extra bedroom?
  • A study or Home office, giving you privacy?
  • A playroom for the children?
  • Another bathroom or shower?

All these can be achieved by converting your loft into usable space and you don’t have to move.

APD interiors can design and build your loft conversion for you.

bathroom-loft-conversion-london-3Whether what you want is traditional,  contemporary or funky and fun we can design the Loft conversion of your dreams.  APD interiors has been designing stunning interiors for residential spaces since 2004.  Since then we have gone from strength to strength including features in the Evening Standard Homes pages and we write the Interiors column for City AM and  In addition we are the official bloggers for the Decorex worldwide Interior design Show.  By combining a grounding of good style, elegance and practicality with an affordable pricing structure, we have delivered to our clients comfortable, well designed and highly desirable homes.  We firmly believe that luxury living is an affordable dream achievable by anyone and we can deliver you a stylish and comfortable extra space in your home where you can unwind, enjoy your life and relax.





A few little known facts:

  • Half of all heat loss in a typical home is through the roof and walls
  • Good loft insulation can reduce a typical heating bill by ~20% (Source HM Gov), we upgrade your loft insulation as part of our work.
  • Heating a home accounts for approx 25% of the total UK’s CO2 (Source HM Gov)
  • Many companies say they are able to carry out loft conversions, but unfortunately many of these are general builders who do not have the expertise nor experience to carry out this sort of work. One of our customers came to us after her builder had already cost her £25,000, building a loft conversion which did not pass building regulations.  Lack of experience becomes apparent when a problem happens that cannot be solved by inexperienced contractors.  APD Interiors building team has many years experience carrying out this sort of work.

Frequently Asked Questions

Can any property be converted?

Not all lofts can be converted and in some cases it is simply not practical to do so, however APD interiors will advise you on this and explain other solutions if this is the case.

The most important consideration is “head height” (which must be at least 2.2m) and that your walls have sufficient load bearing capability, If this is not the case, then a loft conversion can still be carried out, we can lower your existing ceilings or the structural work can be lowered into your existing ceiling. No problem is insurmountable, and a member of the APD interiors team will advise and support you through the whole process.

What about Planning Permission?

As long as your conversion is within the “permitted development” guidelines then you should not need planning permission.

“Permitted development” means that

  • The house is a single family dwelling and not a flat or maisonette.
  • The proposed extension or dormer window should not be raised above the highest part of the roof.
  • The slope of any part of the roof, which faces a highway, must not be extended.
  • The loft conversion does not amount to the addition of more than 40 cubic meters in the case of a terraced house or 50 cubic meters in any other case, measured externally.
  • When combined with any other existing extension to a house then to total extra space exceeds the permitted development allowance.
  • The dwelling is not in a conservation area, or is not “listed” nor has an Article 4 Direction on it.

How long will the conversion normally take?

On average a loft conversion will take between 4-6 weeks, depending on the complexity and size of the building.

Will a conversion add value to my property?

Yes. Figures have shown that adding a loft conversion to a building normally adds about 21% to the value of a property.

Where will the staircase go?


The staircases in most conversions are placed above the existing staircase of the house. They climb up on the wall of the house and end at the top level with the new loft floor. This means that no extra space is needed to accommodate the stairs into the loft, nor taken away from the first floor living area.

Can the conversion happen in the winter as well?


Yes of course. When working in the winter we ensure that your house is watertight and weatherproof.

If no planning is required how do I get Building Regulation approval.

Once the plans and structural engineering documents have been drawn up, we work with the local Council Building inspectorate. They will come on site while we are working and ensure that all our works, comply with England and Wales building regulations. Once our works are complete they will then give YOU a certificate that states the modifications have met Building Regulations. This certificate you need to keep in a safe place for if/when you sell your property the new buyer’s solicitors will require it.

How do I know what type of roof I have?

Below are some drawings of roof spaces and shapes and possible extension options.

Mansard conversion.


Achieved by altering the existing roof angle. This makes the best use of available space.

Dormer and Velux conversion.


By extending the roof out slightly you can gain extra space. You can put french doors or windows on the dormer as you wish.

Hip to gable extension.


By extending your existing hip ended roof, into a gable ended roof you gain more headroom and more loft space.

Velux window conversion.


By creating a box area inside your existing roof, and adding windows, you gain space, light and ventilation.

We hope this gives you an idea of the advantages of converting your loft, and we look forward to receiving your call. We can be contacted using any of the methods below.

i A growing family living in a typical three bedroom house but wanting an extra bedroom and bathroom, would have to spend £196,000 on a new home to move up the ladder. While their own home would fetch about £162,000. (Source Nationwide Building Society)



[i] A growing family living in a typical three bedroom house but wanting an extra bedroom and bathroom, would have to spend £196,000 on a new home to move up the ladder.  While their own home would fetch about £162,000. (Source Nationwide Building Society)