Jerusalem in the Twelfth Century

[@danielbretall2236]

If you were an average working person in the kingdom of Jerusalem, what was the housing situation? Were there houses for the taking? Would it be a stone tenement building? Curious as I am writing a work of fiction based in 12th century Jerusalem with a character who is the son of a first crusader around the time of the second crusade, 1144. Any illumination (or marginalia) would be appreciated.