If your dates are fixed and you have found an apartment you think will be ideal for your stay, do not leave it to the last minute, because serviced apartments can get booked up very quickly and there may not be a similar alternative in the same building or even the same location.
Also
be vary of important event dates such as Wimbledon, London Fashion
Week, Chelsea Flower Show, World Travel Market. You may find
availability low and prices high during these peak periods as well.
During May-August (Summer) and busy holiday seasons like Christmas, Eid and Easter, we would advise you to book your apartment as soon as possible to avoid disappointment.