Upvote:16
The passport space requirements for a UK visa are as follows:
You need a page in your passport thatβs blank on both sides for your visa.
This doesn't mean a blank double page, but a single page which is blank on both sides. This is because applying a UK visa vignette embosses the passport page, so the back of the page needs to be clear of obstructions. Since your visa was issued, you presumably met this requirement. You will need space somewhere in the passport for your entry stamp, but there's no requirement that this is placed facing the UK visa. The border officer can put it anywhere in the passport that there is space. Don't worry about it! Enjoy your trip.