Thank you so much everyone for all the fantastic ideas. I'm glad I posted here. Your pictures all look amazing too. I never considered a mirrored cabinet at first - I didn't think they looked as sophisticated! But the drawers just don't provide enough storage and I think I will go with that - it will satisfy my desire for a large mirror too! I love the "round the corner" idea for getting a good view of my hair dos! Thanks again everyone :-)

I hang mirrors professionally and think that jmm1837's reply is spot on. For a client of mine I would hold it up and make a decision in situ when the client thinks it 'looks right'. That said. I would probably start by recommending a position where the base of the mirror is close to being in line with the top of the bell jar. You want it to be high enough to not make the mantle top ornaments look cluttered. But you may also want it low enough to reflect a tall flower arrangement. Hope this helps.

Don't go cheap on bathroom mirrors. The backs of the mirrors can be affected by steam and humidity from the moisture in the air from hot showers. This can lead to de-silvering of the mirror on the back. Mould and mildew are also a risk. Check that any mirror that you are looking at is suitable for a bathroom - some of the cheaper mirrors have masonite or cardboard backing. Best of luck, Dr Retro of Dr Retro House Calls

Thanks Margot. I think I've more or less got it sorted. The only challenge remaining, I think, is finding a way to give it a visual lift. It currently has floor to ceiling tiles in a standard size, square, and a very uninteresting colour with no texture - but in very good order. Very dull! I hate grout in showers so I'm thinking maybe some Mr Wetwall panelling or something similar over the tiles in the shower and on the new wall formed by moving the linen cpd, plus on a part wall along the long side of the shower to replace the glass screens that I insist must go (I'm a lazy cleaner and I hate cleaning glass!) Hopefully that would be enough to relieve the dullness of the existing tiles. Then some feature shelving over the new bath tub perhaps. Not yet decided whether to install a freestanding back-to-wall bath or a drop-in, but the latter might provide scope for some more feature tiling or panelling around it. I want to open the room directly to the outdoors but the current window opening is only 1200mm wide and the wall is 8 inches of solid concrete - not easy to cut to enlarge the opening - so I'm looking at either a hinged door with window inset into it or a standard size glass swing door with a narrow window beside for ventilation. My other challenge is doors for the relocated linen cpd, as the existing mirror doors have got to go! I loathe them. As the cpd will be visible from the living area, it needs stylish doors.