Oakville, Ont., has imposed a one-year moratorium on all new data centre developments, aiming to address concerns over land use, noise, emissions, and infrastructure strain tied to rapidly expanding artificial intelligence data centres.

The unanimous decision came during a special council meeting on Aug. 11, 2026, prompted by a proposal from BUZZ High Performance Computing Inc. for a 320-megawatt AI data centre "gigafactory" valued at US$3.5 billion in Oakville's Ward 6. The moratorium covers all data centre developments on specifically zoned lands.

"The moratorium will provide necessary time to update policies and ensure that development does not outpace infrastructure capacity or community readiness," Mayor Rob Burton said during the meeting, according to Oakville News.

Ontario's electricity grid currently faces unprecedented demand from data centres alone, with approximately 6,000 megawatts requested by these facilities, the National Observer reported. Data centres rank among the most energy- and water-intensive types of development, raising public concerns about environmental impact and community well-being.

BUZZ and its parent company, HIVE Digital Technologies Ltd., are headquartered in Canada but also maintain US operations. The company asserts the proposed gigafactory will use closed-loop water cooling systems and claims the project will not increase local electricity bills or taxes, National Observer reported. However, these claims lack independent public verification, noted local council members and commentators during discussions.

Similar moratoria have been considered or enacted in other Canadian municipalities, including Mississauga, Rocky View County, Saskatoon, and Cumberland County, reflecting growing municipal caution amid rapid AI infrastructure expansion. In Alberta, for example, data centre electrical demand has surged by 9,900 percent since 2024, significantly impacting provincial power generation and water resources, according to the Council of Canadians in their recent analysis.

The Oakville moratorium arrives ahead of anticipated provincial regulations under Ontario's Bill 40, which will impose updated standards on data centre developments. This proactive measure aims to allow comprehensive study of infrastructure needs, environmental risks and community impacts.

"We need to balance economic innovation with responsible stewardship of resources," said councillor Jane Harding, emphasizing the importance of public engagement in shaping policies, per Oakville News.

Public concerns extend to the massive electricity demand such facilities generate, as well as noise pollution, emissions, water use, and the compatibility of such industrial-scale developments within residential or mixed-use zones.

Data centre water consumption is estimated to range from 833,000 to 5.6 million litres per megawatt annually, placing additional strain on local water resources, said the Council of Canadians report A Moratorium on AI Data Centres.

Officials from BUZZ have clarified that the proposed data centre would not be energised until after the moratorium period ends, though questions remain about the timing and regulatory conditions under which construction might proceed.

During the council meeting, members cited the need for clear, updated policies addressing land use compatibility, environmental standards, and infrastructure capacity before further commitments are made. "This moratorium is a pause for prudence," said Oakville's chief planner, Joseph Ng, according to Oakville News.

Oakville's approach exemplifies a broader trend across Canada where municipalities seek to manage the rapid growth of AI-related infrastructure through evidence-based urban planning bolstered by public consultation.

Experts caution that unchecked expansion of hyperscale data centres risks increasing the demand for natural gas power plants and exacerbating water scarcity, pointing to Alberta's experience as a cautionary example. Public health and environmental groups have called for moratoria or stricter oversight to safeguard communities and climate goals.

As AI technology drives increased digital infrastructure requirements, municipal governments are caught between facilitating innovation and preserving local quality of life and ecological balance. Oakville's one-year moratorium is among the first significant municipal regulatory responses to address these competing priorities in Ontario.

Further updates are expected as the province advances Bill 40 regulations, and as Oakville undertakes a review of its policies and community feedback over the next 12 months.