142 Queen Street East

T.B. Guest Building

DesignatedSt. Marys, Ontario · Register as of May 1, 2025

Is it a heritage property?

Yes. 142 Queen Street East, St. Marys is designated under the Ontario Heritage Act, Part IV (as an individual property).

Designation is the strongest protection under the Act and is not affected by the January 1, 2027 deadline. Source: Town of St. Marys — Municipal Register of Heritage Designated Properties, as of May 1, 2025.

At a glance

Year built: 1868
Heritage neighbours: 21 other heritage properties within 100 m
Designation: Part IV (individual property)
By-law: 69-1981
Location: Matched to the municipal address

Building details from the municipality's register unless marked otherwise.

Condition on the ground

No condition reports yet.

A vacant or neglected heritage building can be reported to the municipality's property standards or by-law office (311 in most cities). Photos must be taken from public property and must not show people.

Community collection

No historic photos, documents or recollections yet. Do you have one?

History on this site

October 7, 2026First recorded as designated

Other heritage properties on this street

Source: Town of St. Marys — Municipal Register of Heritage Designated Properties, as of May 1, 2025.

Heritage register information from the Town of St. Marys's published register. Coordinates: Statistics Canada, National Address Register, June 2026, used under the Statistics Canada Open Licence.

Not legal advice. Confirm status with the municipality.