Owning your own home

@plantasia I would create a new floor to ceiling cupboard which will by the looks of things need to be protruding out beyond the left wall to cover the boiler - you could check out some standard Howdens doors sizes and build the cupboard apertures to fit them.

Someone with more legit knowledge can advise but i’d probably fit an air inlet at the top - because boiler.

Then have a bunch of shelves running down the right hand side for books, booze, soy sauce and other things that collect dust.

Find the installers manual for the boiler. It will list the clearances needed on all sides. Fit cupboards accordingly.

The thing underneath was constructed after the boiler was installed... it's screwed from a maintenance perspective anyway as that boiler really wants better ventilation underneath it (unless that shelf under it is deceiving and is in fact a big hole.

Boilers need air, lots of it, especially underneath (for most designs).

Servicing needs the ability to remove the case (usually screws at the bottom and top, but sometimes at the sides).

Servicing also needs the ability to remove most of the fascia and bottom.

Whatever you do: Give it a lot of space underneath it, and around it so that an engineer can get it, and a lot of air that it can draw upon (if you fully box it put in a grill vent so it can pull in air).

If you can come up with a design that does that... then a standard wardrobe or living room cabinet make will be good for this. MDF is fine, a basic shaker outline or something to make it look good. Store your hoover and ironing board in there (because they're tall and you can't really fit shelves, etc without eating into the space an engineer will need to service it).