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OakvilleIQ

Heritage property

145 William St

145 William St, Oakville, built in 1830, is in the Old Oakville Heritage Conservation District, designated under Part V of the Ontario Heritage Act.

Last checked September 24, 2026Town of OakvilleHow we know
Publisher
Town of Oakville
Source dataset
Heritage Properties (open data layer)
Official record
By-law 1981-144
Retrieved
September 24, 2026
Licence
Contains information licensed under the Open Government Licence — Town of Oakville. Terms
From the source
status under the Ontario Heritage Act · by-law and year · year built · the Town's history and description, reproduced verbatim
Derived by OakvilleIQ
community, by location · nearby properties and what is around
OakvilleIQ’s words
the summary sentence · what the status means
Kept current
Rebuilt from the Town's layer; a weekly check warns when the record is more than 90 days old.

History

Built by William J. Sumner and purchased in 1855 by George Sumner who served as the chief constable of the town for 37 years.

The Town of Oakville’s account, reproduced from its heritage register.

What the status means

Inside a heritage conservation district designated under Part V. The district plan governs exterior changes visible from the street; the building itself is not individually designated.

Whether a specific alteration needs a heritage permit is the Town’s call; ask its heritage planning staff before starting work. See permits and by-laws.

Sources

Sources

Every factual claim above traces to one of these documents.

  1. Town of Oakville

    By-law 1981-144

    Retrieved September 24, 2026

  2. Town of Oakville

    Heritage Properties (open data layer)

    Retrieved September 24, 2026

  3. Town of Oakville

    Heritage Districts and Properties

    Retrieved September 24, 2026

Contains information licensed under the Open Government Licence — Town of Oakville. Licence. Register checked September 24, 2026; the Town’s record is authoritative.

The OakvilleIQ Brief

Heritage designations and district changes

What changes on the Town's heritage register, once a week.

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