Developer Grant Aitken, of Pit Lane Road Ltd, says 21 new apartments will go on sale at November's Highlands 101 event, subject to council approval, each costing about $600,000.
The previous 12 apartments first advertised in 2014 have sold.
Mr Aitken: ''I thought we might have satisfied the demand at 12 but it appears there's more - some of that is on the back of the credibility of the motorsport park and some of it just from interest in the whole region.''
The land was originally approved for such as servicing and maintaining vehicles, but the application said market forces showed apartments within the park were the ''most popular land use''.
The apartments would not have track views at Highlands, which is owned by Australian rich-lister Tony Quinn.
The two-storeyed apartments would have up to three bedrooms and ground-floor garages for four cars. They ranged from 140sq m to 165sq m.
A manager would live on-site and there would be permanent on-site security.
Construction could begin early next year. Development would be staged, probably in three lots of seven.
Is there room for more?
Mr Aitken: ''There's only four lots left after this lot and I think most of the others are building individual man caves and I think we'll probably satisfy the demand at that point.'
