[2]: 7  A bequest, by John Jones, of land at Stanmore, saw the college move to the newly fashionable inner-city suburbs of Sydney in 1880.

A major benefactor to the project was Fred Cull and he unveiled a commemorative stone which read: "This House was erected by those who desire for boys a fuller life."

In the same year, Wyvern House was the first Australian prep school to undertake an international Rugby tour, when it visited New Zealand.

[2]: 158 An exchange program was initiated in 1975 between Wyvern and La Verne Heights Elementary School in Los Angeles.

In 1995 the Adult Deaf Society Headquarters in Cambridge Street, Stanmore, were purchased for the relocation of Wyvern to a stand-alone campus.

Sixty years after its foundation, the complex, designed by Old Newingtonian architect John Lawes, was opened by the Governor of New South Wales, Gordon Samuels.

As well as open playgrounds and two basketball/tennis courts, Wyvern has a spacious under-cover rooftop area for physical education and wet weather play.

The entire school can meet in the assembly hall and the boys are serviced at lunch and recess by an adjacent tuck-shop.

Arrival at, and departure from, the school is facilitated by a drive-through entrance underneath the main building giving all-weather safe access for young students.

Swimming, athletics, Rugby and soccer are held on the Newington main campus reached via a footbridge over Stanmore Road.