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45 Main St E

John Sopinka Court House

DesignatedHamilton, Ontario · Register as of October 12, 2026
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Is it a heritage property?

Yes. 45 Main St E, Hamilton 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: City of Hamilton — Heritage Properties, as of October 12, 2026.

At a glance

Year built
1935
Architect or builder
Hutton and Souter
Architectural style
Beaux-Arts Classicism
Storeys
6
Heritage neighbours
15 other heritage properties within 100 m
Designation
Part IV (individual property)
By-law
93-011
Ward
Ward 2
Location
Matched to the municipal address
CONTEXT The Dominion Public Building was erected in 1935-1936 on John Street South between King and Main Streets to serve as Hamilton’s main Post Office and federal office building. Located on a major site in the downtown core, the front facade of this monumental six-storey edifice faces John Street; its south facade is an integral part of the Gore Park streetscape and its north facade faces the Courthouse grounds.…Statement of cultural heritage value, from City of Hamilton — Heritage Properties · full text at the source

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?

Development applications

  • Site Plan · filed February 28, 2020 · ApprovedAbout 18 m away, at 62 And 64 King St E · MDA-20-049To construct a 24.65 sq. m. addition to the 4th floor and a 228.98 sq. m. 5th floor addition, to existing building. Complete internal renovations for office spaces, an office and restaurant on ground floor. 5th floor to contain 2 residential units.
  • Zoning Amendment · filed in 2020 · ApprovedAbout 13 m away, at 62 And 64 King St E · ZAH-20-031To construct a 24.65 sq. m. addition to the 4th floor and a 228.98 sq. m. 5th floor addition, to existing building. Complete internal renovations for office spaces, an office and restaurant on ground floor. 5th floor to contain 2 residential units.
  • Site Plan · filed in 2018 · ApprovedAbout 39 m away, at 66 King St E · MDA-18-056To construct a licensed patio to the front of the existing Red Church Cafe restaurant. The proposed patio will be 27.70 SqM and will have a seasonal occupancy of 20 people.
  • Site Plan · filed in 2018 · WithdrawnAbout 24 m away, at 66 King St E · MDA-18-059To permit an outdoor licensed patio to the existing Red Church Cafe restaurant and gallery. Site plan already applied as MDA-18-056
  • Site Plan · filed in 2015 · ApprovedAbout 42 m away, at 46 King St E · SPA-15-110To construct a 2 storey addition on top of the existing 3 storey office building with a proposed height of 25 metres. The new design involves the construction of two additional storeys and a curtain wall on three sides of the building.
  • Formal Consultation · filed in 2015 · In ProcessAbout 28 m away, at 58 King St E · FC-15-113To construct a 3rd storey addition and establish condominium ownership of addresses 58, 60, and 64 KING ST E.
  • Formal Consultation · filed in 2009 · ApprovedAbout 31 m away, at 66 King St E · FC-09-108To construct a live-work unit with additional commercial uses.
  • Site Plan · filed in 2002 · ApprovedAbout 48 m away, at 25 Hughson St S · DA-02-068

From municipal open data (City of Hamilton Open Data Licence). An application is a proposal; it doesn't change the property's heritage status. Nearby means within 50 m.

History on this site

  1. First recorded as designated

Other heritage properties on this street

Source: City of Hamilton — Heritage Properties, as of October 12, 2026.

Contains public sector Data made available under the City of Hamilton's Open Data Licence.

Not legal advice. Confirm status with the municipality.