The island is within the traditional territories of the Tsawout First Nation. Hereditary chief Louie Pelkey of the Tsawout was born on the island in 1860. Although it is east of the North SaanichDouglas Treaty area and south of the Hul'q'umin'um Treaty area, it is not within a Douglas Treaty area. In the early 1900s, the island was used as a private hunting ground for Victoria sportsmen including then British Columbia PremierRichard McBride, who served between 1903 and 1915. In 1913 a dynamite plant was established on the island. The plant was owned by a company that merged into Canadian Explosives Ltd, which in turn changed its name to Canadian Industries Limited in 1927. From the outset of World War II, the plant was operated by Defence Industries Ltd, a subsidiary of CIL. The plant, and many of its workers' cottages, had been moved to the island from Nanaimo. At its peak, the plant employed 800 people, most of whom lived in a small, traffic-free village on the opposite end of the island. During World War II, the plant produced of TNT per month. The TNT plant closed in 1977, and it and the village were disassembled and removed from the island in 1979. James Island was purchased by Craig McCaw in 1994 for $19 million. Since then there was repeated legal action taken against ICI as the new owner was unable to turn over the property to residential use as per his intention due to its industrial history, a status which had been well-documented as of the sale. Recent luxury resort development on the island includes a golf course, yacht moorage, seaplane ramp, and an airstrip. McCaw has reportedly established an environmental regime on James Island where insecticides are not allowed, power lines are underground and electric cars and golf carts are used for transportation. The island was the property with the highest assessed value in the Capital Regional District in 2009, at almost $76 million. In June, 2012, the island was put onthe market with an asking price of $75 million. The Island is no longer listed and reportedly no longer for sale.
Ecology
In the the island is entirely Coastal Douglas Fir Lowland.
Local Government
The island is within the Capital Regional District and also within the North Pender Island Local Trust Area of the . Land use is governed by the Trust with representation by the . Local government matters other than land use are governed by the Regional District with representation for the Southern Gulf Islands, Electoral Area G, by one elected . Although the North Pender Local Trust Committee has authority for land use and the island has no resident landowners, its official community plan and land use bylaws are independent of North Pender.