mmm... may have answered my own question.
http://eleygriffiths.com.au/eg/wp-content/uploads/2016/02/Astro-Japan-Property-Group.pdf
Assuming no premium which is not true (so far they have been booking tidy profit on each sale) NTA is > 7.42
10% property revaluation -> $7.89
15% property revaluation --> $8.61
Finally making sense to me now why this is running so hot.