Having another look at this I don't think its a church...well not in the regular sense. I feel it is either a private church or it is a parsonage or vicarage.
The garden is a bit too much for what I know of churches. ( and true that's not much
)
It does look like quite a well maintained, typical English garden, but it appears to outside the fence of the church, so perhaps the photo was taken from the vicarage garden next door.
