Initially it was known as The Collins Overland Trail, and the first message carried on it to New Westminster was to report the assassination of Abraham Lincoln in April 1865.

The Semiahmoo Wagon Road was built in 1872-4 to connect the Fraser River to the north with Blaine, Washington, to the south.

When the railway was relocated to Hazelmere to the east of Sunnyside, the land crossing at Douglas, B.C./Blaine, Washington, became the main customs area.

Led by then Alderman Garry Watkins, in 1977 the (then) District of Surrey proclaimed it a Designated Heritage site.

The social focus, after the early 1920s, was Hazelmere Hall, built by the volunteer labour of local residents on land donated by carpenter Ernest Hamel.

Residents recall parties at the hall, dancing to the music of pianist Andy Westland and his orchestra.

A building from Camp 206 was moved to what is now 24th Avenue and 156th Street to serve as the Sunnyside Hall on land donated by George Cook.

In 1958 the City of White Rock seceded from the District of Surrey and the effect was immediately felt in the Sunnyside area.

At the south end are large softball diamonds and a hockey rink where the Surrey Eagles junior team plays.

Sunnyside is located centrally on the uplands and mainly towards the plateau and south slope of the Semiahmoo Peninsula.

It closed in 1891, after the New Westminster and Southern Railway commenced operation, providing direct service to a series of stations along the line.

[15] Sunnyside Elementary opened in 1949 at the corner of Johnson Road (152nd Street) and Oliver (near King George Highway).