Overall its a lovely house, but it raises a lot of questions that you need to answer at this point to attract viewers.
Correct the leasehold or freehold confusion.
It's the layout for me. Small living room, massive kitchen-diner, conservatory as 2nd reception (either too cold or too hot most of the year). I'd swap the dining room into the conservatory and make a kitchen-family room, with a cosy sitting room area that links in to the living room.
The storage and office are obviously a converted garage. No photos of these? If the garage door still opens get it marked on the plan, otherwise I think I've got to drag my bike or lawnmower through several rooms before I get to an external door. Is the office well insulated and cosy? Converted garage rooms are often cold, so I need a ppic to see it really is a proper room and you haven't just chucked chucked up a wall in the garage. Work from home space is such a benefit now, but not if it might be grim (and I'd assume it was as otherwise why hide it?
Consider getting 4' beds for the small bedrooms. I've got one in my spare room,, it's still big for 1 person and OK for visiting couples as long as they get along, isn't really obvious and the gain in floor space makes a big difference.
Garden needs better photos. The metal thing needs turning into a nice obvious pergola, or removing. At the moment it is confusing, and if I had little kids I'd worry about them treating it as a dangerous climbing frame. The plant pots all look a bit sad in little rows, get some colour in them, and group them rather than line them up. Get rid of the bollard that's dumped in one of them. I know they aren't permanent features but they make the garden look neglected. You need a more cohesive photo of the garden to show its size and layout.