Buildings as defense

[JohnSnow]

Raiders need at least three days to destroy an ordinary pilgrim's hovel, at the same time, even a brick wall breaks down in less than an hour. Can I build a lot of hovels for the defense my town? It is seems much cheaper then other ways.

[Kandarim]

you can't build them right next to eachother.
Even if you somehow found a bug that would let you do that (which you should probably report) any raider that spots it and catches a dev online can just get it insta-gibbed.

[MaxPlanck]

Raiders need at least three days to destroy an ordinary pilgrim's hovel, at the same time, even a brick wall breaks down in less than an hour. Can I build a lot of hovels for the defense my town? It is seems much cheaper then other ways.

Long walls between two hovels so it requires the burning of the building or going through 5+ walls.