The project will consist of three islands, with islands A and B of about 380 hectares and island C will be as large as 240 hectares. A Y-shaped sea channel will separate the islands.

The islands, which were developed based on the concept of a "15-minute neighbourhood", said the government, will be divided into residential and core commercial districts, offering around 270,000 positions for work.

The residential districts will occupy 250 hectares, accounting for 25 percent of the whole project. The commercial districts, located 100 hectares large, will provide four million square meters (about 400 million ft²) of business buildings.

In addition, a 13-kilometre-long Hong Kong Island West - Northeast Lantau Link will pass through island C to be the first road connecting Hong Kong Island and New Territories northwest without travel via Kowloon. It is scheduled for completion in 2033.

The government will also construct the Hong Kong Island West - Hung Shui Kiu Rail Link, which will be 30 kilometres long and pass through all three islands. The link will go through Hong Kong West, the artificial islands, Sunny Bay, and Tuen Mun East, extending to Hung Shui Kiu in Northern Metropolis and connecting the in-planning Second Stage Study of Hong Kong-Shenzhen Western Rail Link (Hung Shui Kiu - Qianhai).

An estimated cost of HK$580 billion will be spent on the artificial islands project, said the government. The private and commercial lands on the islands are expected to bring a revenue of HK$750 billion under a preliminary calculation.

The government also predicted the economic activities of the artificial islands could bring about HK$200 billion in value per year, accounting for seven percent of Hong Kong's GDP.