grimes cottage is a heritage-listed 1830s colonial georgian residence with three storeys and six bedrooms .
one of the oldest surviving homes in sydney - the 185-year-old house was built by whaling captain george grimes .
less than 10 minutes walk to the city 's centre - the property boasts sydney harbour bridge views .
only one of two freestanding properties in nsw goverment 's social housing portfolio earmarked to be sold in area .
the 50 argyle place property is situated in the much sought after postcode of millers point .