The Large One
Who's Next?
To the east of The Lanes, there was Little Laine, presumably because it was a small area. It isn't called that any more, either. It includes the western end of Kemp Town, which was named after Thomas Kemp who built the area in the 19th century, when it was renamed after him.
Further to the east, to the east of Little Laine, was East Laine, which comprises the eastern end of Kemp Town and Whitehawk.
To the north of Little Laine and was Hilly Laine, comprising the area around Hanover and Queen's Park.
Only North Laine has retained its name in the local parlance, though it refers to a general area, and you won't find it on a map.
The Lanes is a modern term for the medieval village and you won't find that on any map, either.
If you're going by that map, Little Laine appears to run from the Old Steine in the west to somewhere like Lower Rock Gardens in the east, which is still Brighton - as opposed to Kemp Town. East Laine appears to take up what is now Kemp Town and Manor Farm.