There are several parties interested in buying Carisbrook with a week and a half to go, the principal realtor says.

The prime commercial and industrial site, which was once known as the House of Pain, is due to be sold by deadline treaty on March 23rd.

Colliers Principal, Stephen Cairns, says there are several parties who the company is talking with, and he considered the sale was progressing well.

The sale includes 35,000sq m of land, and is being marketed as an "unparalleled development opportunity".