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OakvilleIQ

Oakville development

Data centres in Oakville

Every decision on data centres in Oakville — the freeze, the 320 MW proposal and the rules now being written.

Last checked October 18, 2026Town of Oakville, Government of OntarioHow we know
Publisher
Town of Oakville, Government of Ontario
Retrieved
October 18, 2026
From the source
news releases, Council memos, Environmental Registry of Ontario postings, the IESO's 2026 regional plan
OakvilleIQ’s words
the timeline, the summary figures and the context paragraphs
Kept current
Updated as each new decision or filing is reported.
By-law
2026-129
Interim control
Freeze duration
1 year
Aug 11, 2026 – Aug 11, 2027
Appeals filed
None
Closed Oct 1, 2026
Formal applications
None
Town of Oakville

Coverage

Our reporting

Timeline

How we got here

  1. Mayor directs staff to study data centresMayor Burton directs the CAO to prepare a memo on data centres supporting AI infrastructure.
  2. Staff memo to CouncilMemo covering servicing, environment, legislative framework and economic impacts.
  3. Interim control by-law passedCouncil passes By-law 2026-129, freezing data centre applications on all employment land for one year.
  4. Appeal period closes — no appealsThe by-law stands unchallenged.
  5. 320 MW proposal reportedBUZZ HPC, a HIVE Digital subsidiary, says it assembled about 25 acres at 3480 Ninth Line for a $3.5-billion AI data centre.
  6. Town responds to provincial Data Centre PlaybookFormal comments submitted through the Environmental Registry of Ontario, calling for a fourth environmental pillar.
  7. NowPolicy review underwayStaff are studying land use compatibility, infrastructure capacity and environmental impacts.
  8. AheadBy-law expiresThe one-year freeze lapses unless Council extends or replaces it with permanent rules.

Context

Why this matters for Oakville

Data centres are the fastest-growing class of industrial land use in southern Ontario. They consume large amounts of electricity, water and land, generate noise from cooling systems and backup generators, and interact with the grid in ways that can affect the cost and reliability of power for everyone else.

Oakville acted faster than any other Ontario municipality: Mayor Burton directed staff to study data centres in July 2026, Council passed a one-year freeze on applications in August, and the Town has since submitted formal comments to the Province arguing that the provincial framework for assessing data centre proposals needs a dedicated environmental pillar and mandatory municipal consultation.

The proposed BUZZ HPC facility at 3480 Ninth Line would need roughly 320 megawatts of power — on a grid the IESO says is currently fed from Toronto and may need a new ~$200 million transmission line. No formal development application has been filed with the Town for any data centre.

Policy review

What staff are studying

  • Land use compatibility — whether data centres fit alongside other employment and residential uses
  • Infrastructure capacity — whether roads, water and wastewater systems can handle the load
  • Electricity and water demands — data centres' high consumption of both
  • Noise — cooling systems and backup generators
  • Environmental impacts — emissions, heat and sustainability
  • Municipal roles — what the Town controls versus what falls to the province, utilities and other agencies