Built 1874-1877 late Victorian era.

Huge 45 room mansion built for Duncan Forbes Mackay.
Two storey sandstone residence built on a u-shape floor plan with corrugated iron roof taking up over an acre. This Victorian Filigree building has a two storey verandah with Filigree decoration including cast iron balustrades, columns and frieze panels to the main wing. The verandah extends along three sides of the residence, onto which open French windows. The main building is flanked by two storey wings, hipped roofs and singles storey framed verandahs, both in which enclose a small courtyard. The residence has ornamental stone chimneys. Internally, the Australian cedar and rosewood staircase, hand carved in Germany. The residence has finely detailed windows, featuring some of the first stained glass representatives of native Australian fauna. Floor tiles are from Italy, massive marble baths and fireplaces are an absolute feature of the home.

Aesthetically Minimbah has landmark qualities, striking visual appeal, displays grandeur and elegance. The residence was built on a large budget with high quality materials, architecture and attention to details.