I would say no to be fair.
I have never lived there but I do a fair bit of work in Lewes, also I have a son that goes to school there.
There are some estates but many houses are privately owned now, one estate called Landport did have a reputation I'm told, but I have worked there recently and...
Lewes is probably one of the best towns in Sussex TBF, great pubs, restaurants and very nice countryside on the doorstep.
I really like the history of the town and every time I visit I see something of interest.
I would not live there though TBH, because-
1) I don't own a pair of red trousers...
Not many people live there that actually grew up in Lewes though, I find Lewes is full of people from London etc.
Nearby Kingston village is full of people from London.
On a very short walk from the back of my house I took these photos, most people just see the industrial estates and incinerator.
House prices are not too bad either, I'm from Brighton and I would not be able to afford the size and quality of my house there.
Out of interest have you lived in...