Harbour Island measures around 500 acres and is mostly populated with houses; it has been conceived as a village. There are very few buildings when they exist; they are mostly 2 stories.

Most of the vacation rentals properties in Harbour island are mostly of the home type, there are various types of homes such as cottages, historic small houses, beach front homes, luxury mansions and bay front homes.

In the few buildings there are very few apartments or condos available for vacation rentals, they mostly can be found in a condo hotel resort called Valentine resorts.
Townhomes are relatively rare as well but a few are available for vacation rental.
Rental nightly rates vary from a few hundred dollars a night up to $ 20 000 for the most luxurious rentals.