The Oliver John Harmon House is architecturally significant as one of the best examples of the Queen Anne style in Price. The Queen Anne style was popular throughout Utah from 1885 to 1905. Though over 20 Queen Anne and Victorian Eclectic (1885-1910) style houses remain in Price, less than half retain their architectural integrity and the majority of these eligible houses are of masonry. The Harmon House is a very late example of the Queen Anne style and remains as perhaps the best example. The original segmental hip roof above the short, second floor-level windows, above the north bay window, is also a very uncommon architectural feature both locally and state-wide.

Oliver was a successful businessman, as well as a master carpenter and cabinet maker. He built this house around 1908 and lived here with his family of eight children until his death on 19 December 1937.