Complex sentence: SIT estates also appeared in Queenstown such as the Princess Margaret Estate where construction began in July 1952, in SIT's early plans for the Estate, the new town planning concept was evident with their plans to build housing estates around a commercial centre.
Split into simpler sentences: SIT estates also appeared in Queenstown such as the Princess Margaret Estate where construction began in July 1952. In SIT's early plans for the Estate, the new town planning concept was evident with their plans to build housing estates around a commercial centre.