Koh Pich (Khmer: áÂÂáÂÂáÂÂáÂÂáÂÂáÂÂáÂÂáÂÂ, Kaôh Péch ]; English: Diamond Island) is a 100-hectare island and a mixed-use estate and central business district in Phnom Penh, Cambodia. It lies in the Tonlé Bassac River near Chaktomuk (the âÂÂFour Armsâ junction), where the Mekong and Tonlé Sap rivers meet and the Bassac River branches off; it forms part of Chamkar Mon District and faces Koh Norea across the river.
Development began in 2006, when OCIC, the developer of Koh Pich, launched the project and transformed the former swamp area into a planned urban district. Koh Pich has since developed into a major concentration of residential, commercial, hospitality, and event uses, including high-rise projects, offices, retail spaces, and exhibition and convention facilities.
Koh Pich was formed due to the buildup of slit from the changing river flows of the Bassac and Mekong river, creating a 800-meter wide island.
In the early 2000s, the area was a swamp land with a small community of fishing families settled on the island.
By 2004, the Government of Cambodia gave permission to a local conglomerate, Overseas Cambodian Investment Corporation (OCIC Group), to develop the island into a commercial and residential hub.
The Canadian International School of Phnom Penh has its main campus in Koh Pich; this campus opened in 2015.
The EFI (Ecole Française Internationale) is a French international school that opened in 2016. It is located in Koh Pich, where it shares a campus with the Canadian International School of Phnom Penh.
De Montfort University is the first British university to open its campus in Cambodia, it opened its doors in 2024, with its main campus in Koh Pich.
Today, Koh Pich hosts some of Phnom PenhâÂÂs tallest buildings such as the GIA tower, Diamond Bay Garden, Diamond Twin Tower, Morgan tower and Casa By Meridian.
Koh Pich includes several landscaped public green areas, including Coconut Park, Treellion Park, and Elysée Garden, which contribute to the districtâÂÂs recreational spaces and pedestrian environment.
Koh Pich also hosts developments positioned around sustainability and urban reuse. Connexion is a mixed-use innovative hub designed to accommodate offices, retail and community facilities, and has been described as part of an adaptive re-use approach. The district also includes Aquation Office Park, a low-rise, eco-oriented office complex located near the river and integrated with public green space around Treellion Park.
The Phnom Penh stampede was a deadly stampede that occurred during the Water Festival at Diamond Island in Cambodia. It resulted in 347 people being killed and at least 755 being injured.