I have a couple of evenings a month in London in late January** onwards when I would like to do some 'fine dining', but preferably below £150 pp excluding drinks (but for something really good, I don't have any ceiling amount).

I would need somewhere that one eating on one's own would not look too out of place please, as most of the time I will be by myself.

If anyone has a recommendation, I'd be grateful. I did a search in this section but couldn't find anything.

Edited: **Timing is no longer an issue as I decided that I should plan properly for my future monthly (or bi-weekly in some months) visits. So any suggestion would be most welcome, even if I need to book 3-4 months in advance.