It will depend on the type of roof you have, but should be possible in most set ups. These are some drawers I built in between trusses in the eaves of an already converted loft. This was the customers idea and first for me to build at the time.

Hi there! Great job. Nice clean lines and very well used space

Hi Tracey. I grew up in an identical chalet style house in the 70s so this caught my attention. I recently watched one of the George Clarke programmes on Channel 4 where they adapted a house that was identical to yours. It was an amazing result. Might be worth having a look on the web or trying to find the episode on All 4 to find it and maybe find some inspiration. Good luck

The floor space is usually measured wall to wall so may well include a built-in cupboard. If a double storey extension is essential then a quick consultation with a planning consultant might be worth it at this stage if there are many other things that you like about the property. Changing the bedroom layouts to your requirements is going to be very tricky. The bathroom is a good size but it's nowhere near either of the biggest bedrooms. Combining bedrooms 1 & 4 would give you the biggest space for a principal suite including ensuite and dressing room. It all depends on your budget and which rooms receive the best light.