Source: Center for Research and Studies on Kuwait, website.
The following description retrieved from the Center’s site:
Here are four types of house facades in old Kuwait. On the right is a merchant’s house and his diwanniya, or men’s meeting place. The pointed archway indicates some Persian influence, while the diwanniya is of typical local design: simple and well proportioned. The two-storey house on the left with its Indian influenced facade, is the first concrete house ever built in Kuwait, today it is the Sadu house. The fourth type is of three-storey house built by a famous city merchant, probably the then tallest house in Kuwait.