I posted this a few weeks ago: www.mumsnet.com/Talk/property/1402386-Why-isnt-this-house-selling-Opinions-please and got some great advice. Thank you all!
I read out the thread to my mum and amazingly, they have taken all of your suggestions on board. They took it off the market for a couple of months, have decluttered, turfed the garden, had a floorplan drawn up and even had a staging firm in to make it more marketable :)
It went back on the market this week with a new agency, and they've already had 2 viewings in the first 2 days on the market!
Here is the new blurb: www.rightmove.co.uk/property-for-sale/property-22511583.html