Water Constraints May Slow Selangor Data Centre Construction by 2027

Malaysia's Selangor state, the country's most developed data centre hub, is facing a potential slowdown in new construction activity beginning in 2027 as water supply headroom tightens, according to industry analysis. The constraint threatens to delay approvals for water-intensive projects in a region that has become a magnet for hyperscale and colocation investment in recent years.

Selangor has emerged as a primary destination for data centre developers in Southeast Asia, drawn by proximity to Kuala Lumpur, relatively affordable land, and supportive government policies. However, the state's water infrastructure has struggled to keep pace with the rapid buildout of facilities that require substantial volumes of water for cooling purposes. Limited water supply headroom projected for the 2027–2029 period is expected to affect the approval pipeline for new water-intensive projects, potentially moderating construction awards in 2027 before activity picks up again from 2028.

The situation reflects a broader challenge facing data centre markets across the region, where utilities and municipal authorities are increasingly scrutinising the resource demands of large-scale digital infrastructure. Long-term water treatment plant projects are already under development with the aim of increasing supply capacity by 2030 and 2031, which could alleviate constraints in the medium term. Until those projects come online, developers may face stricter conditions on water usage or delays in securing necessary permits.

For the data centre industry, the development underscores the growing importance of water efficiency and alternative cooling technologies in project planning. Operators investing in Selangor and similar markets may need to accelerate adoption of closed-loop cooling systems, air-cooled designs, or water recycling infrastructure to remain viable during periods of supply constraint. The potential slowdown also signals that resource availability, not just power or land, is becoming a decisive factor in site selection and project timelines across Southeast Asia's fast-growing digital economy.