How long have you owned your property?
Is the land in question fenced in and forms part of your garden or the property?
Thanks for your reply.
A party can make an application to the Land Registry for possessory title of land, if they can show that the property has had possession of the land for 10 years (if the land is registered) or 12 years (if the land is not registered) and that the land is enclosed within the property and no third party has any right of way over it.
Therefore, although you appear to have sufficient grounds to apply, you won't be able to do so until you have lived there for 10/12 years. However, if you can obtain a Declaration from the previous owner that this land has indeed formed part of the property for x years, this time period can be deducted from the 10/12 years you will have to wait.
I hope this assists and sets out the legal position.
If I have assisted, I would be grateful if you could rate my answer.