Stables (, adapted ) Hay Shed (, adapted ) Early milking shed () Stalls shed (-) Concrete bin (, ) Stock Yards () Mill Building (3 storeys, no longer extant, -1950). Condition As at 24 February 2004, Orielton still retains some of its character based on the traditional juxtaposition of the main homestead area with its dominant garden and cleared pastureland beyond. Orielton has considerable archaeological potential as the property has been a continuously developing site from - . Orielton still retains its relationship to the various natural features such as Narellan Creek and the enclosing ridgelines, and its open pastoral landscapes. Modifications and dates late 19th centuryadditions when the house was reoriented to face toward Camden. The original entrance driveway appears to have been from the Northern Road directly passing through the area occupied by farm buildings (today) to the entrance, which was oriented toward Northern Road and facing Crear Hill. WWIIarmy occupied the site. It was during this time that substantial change to the fabric of the house occurred. sorchards west of homestead neglected and not clear (plantings gone) in aerial photographs of 1946–47. a large dam built by Warwick Fairfax in across the boundary of the former picking garden and orchard. cultivated paddocks south-west of homestead along northern side of Narellan Creek abandoned for grazing. Tracks and cattle shelters no longer apparent in 2005 aerial photograph (cf. 1990 photo). pre-2005new suburb of Harrington Park east of The Northern Road, including part of Orielton's estate. New roundabout inserted in The Northern Road almost directly east of Orielton homestead. The alignment of The Northern Road adjusted, affecting Orielton's driveway, which is now a 'switchback, from the western side of this roundabout south, doing a "hairpin bend" north of Narellan Creek and approaching the homestead on the same line as the existing driveway. pre 2013new large lot development approaching Orielton's south-west north of Narellan Creek from Kirkham suburb. the levelled portion of land directly east of the carriage loop (former tennis court) was expanded recently, filled with spoil from Roads & Maritime Services road works on the Northern Road. 2014large dam built recently removed in preparation for the residential subdivision and new spine road. Heritage listing As at 23 February 2004, Orielton is of state heritage significance to the Camden area for the following reasons: Orielton is a good representative example of a gentleman's estate from the 1840s, and possibly