When traveling to London for work, our company's travel agent reserved this location for me. It looked OK on the website and it is indeed conveniently located close to Victoria station. Upon check-in, everything looked OK. The hotel lobby is small, but "boutique chic" The staff was not overly friendly, but also not terrible. However, after waiting a few minutes for the room key, I was told I would be shown to my room. To my surprise, we exit the hotel (into the streaming rain, I might add) and we walk about 17-100 meters to another building. The room (room 10) was located on the 3 floor (no elevator) and was definitely not recently refurbished. The bar holding the curtains was almost coming of the wall, the remote of the tiny wall mounted TV was nowhere to be found, the plug of the bedside lamp, didn't fit the socket. The mattress was terribly soft and the pillow thick and hard. Worst of all was the bathroom, with no curtains, but instead a window where some of the view-blocking plastic had been pealed off, leaving one in full few of any potential neighbors while on the toilet or in the shower. As a woman traveling alone, I felt very insecure in the this room, there is no security or any staff present in this building and the whole place just looks shabby.
I complained with staff and tried to change rooms immediately, but was told the hotel was fully booked, although my reservation clearly stated the Tophams Belgravia hotel and not the dependance I was brought to. Luckily, I was moved into the hotel the next night and that room was fine (up to expectations). Breakfast is quite poor, the continental breakfast is as bare as it can be. In summary, if you have to stay in this hotel, make sure you can stay in the hotel part and hopefully your experience won't be so bad as mine.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC