A professional in search of 1 Bed flat/flatshare

I am searching for a 1-bed house / flat in London. In need of high ceilings, a relatively spacious flat or house (ie, separate kitchen to living space), preferably unfurnished. Not particularly interested in an already lived-in arranged house/flat share, but I have a few friends who are interested in a house share with myself, so if a landlord is looking for 2 or 3 working professionals to rent a whole property, that can also be arranged.

Many thanks