Chauncy initially worked with architect and surveyor, William Mullinger Higgins, on the design of a new grandstand for Ascot Race Course.

[2] The Australian venture was short lived and Chauncy set off back to England in 1844 via South Africa, but the birth of their second child Sophia Mary on board ship, caused him to delay at the Cape of Good Hope, where he obtained work supervising the construction of 300 miles of roads and several bridges.

[2][7] In about 1851, he moved to Victoria where a gold rush boom had created new opportunities and by 1853 the family was residing at Sandridge near Melbourne.

His work appears to have involved crown land surveys, including Belvoir itself,[11] and other towns and parishes[12] In 1861 he supervised the erection of the first road bridge over the Murray River between Wodonga and Albury, New South Wales.

Chauncy had evidently been very popular with his fellow officers, contractors and workman who erected a befitting monument to his honour at Goulburn Cemetery.