29 Nelson St
Toronto Hydroelectric Substation D (now known as Duncan Station)
Is it a heritage property?
Yes. 29 Nelson St, Toronto is listed on the municipal heritage register.
Listed (non-designated) properties come off municipal registers on January 1, 2027 unless council issues a notice of intention to designate first, and can't be relisted for five years. Source: City of Toronto — Heritage Register, as of September 1, 2026.
At a glance
- Year built
- 1910
- Architect or builder
- McCallum, Robert
- Building height
- about 25 m at its highest point (City of Toronto 3D massing)
- Lot area
- 363 m²
- Neighbourhood
- Wellington Place
- Heritage neighbours
- 24 other heritage properties within 100 m
- Ward
- Ward 10 Spadina-Fort York
- Comes off the register
- January 1, 2027
- Location
- Matched to the municipal address
Toronto Hydroelectric Substation D (now known as Duncan Station), 1910; Robert McCallum, architect -adopted by City Council on May 6 and 7, 1991. Also, part of the King-Spadina Heritage Conservation District,Description, from City of Toronto — Heritage Register
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
- Plan of subdivision · filed October 13, 2021 · Under ReviewAbout 20 m away, at 224 Adelaide St W (the application covers 5 addresses) · 21 225289 STE 10 SBProposed draft plan of Subdivisin to create 3 stratified blocks in association with Zoning Amendment application 20-226357 STE 10 OZApplication details
- Site plan approval · filed October 13, 2021 · Under ReviewAbout 20 m away, at 224 Adelaide St W (the application covers 5 addresses) · 21 225292 STE 10 SARevised Site Plan Control application for a 63-storey mixed-use building with a total height of 219 metres. The revised uses include 30,864 square metres of residential gross floor area (415 residential units) and 8,113 square metres of non-residential gross floor area…Application details
- Official Plan or zoning by-law amendment · filed December 7, 2020 · ClosedAbout 20 m away, at 224 Adelaide St W (the application covers 5 addresses) · 20 226357 STE 10 OZAn application to amend the Zoning By-law to permit a 60-storey (199 metre including the mechanical penthouse) mixed-use building. The proposal contains a non-residential gross floor area of 1,528 square metres on the first two floors and 554 residential units above. 63…Application details
- Official Plan or zoning by-law amendment · filed April 11, 2008 · ClosedAbout 45 m away, at 10 Nelson St (the application covers 7 addresses) · 08 146250 STE 20 OZZoning amendment application for re-developement of the site for a mixed use building containing 746 dwelling units (56280m2 of residential gfa) and 1332m2 of non residential gross floor area in a 41 and 31 storey tower connected by a two to eight storey podium.
From municipal open data (Open Government Licence – Toronto). An application is a proposal; it doesn't change the property's heritage status. Nearby means within 50 m.
History on this site
- First recorded as listed
Other heritage properties on this street
Source: City of Toronto — Heritage Register, as of September 1, 2026.
Contains information licensed under the Open Government Licence – Toronto.
Not legal advice. Confirm status with the municipality.