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Heritage conservation district

Mill Street Heritage Conservation District

The Mill Street Heritage Conservation District covers 112 properties on the City of Hamilton's heritage register, designated under Part V of the Ontario Heritage Act; most carry By-law 96-34-H in the register.

Last checked October 8, 2026City of HamiltonHow we know
Publisher
City of Hamilton
Source dataset
Heritage Properties (open data layer)
Retrieved
October 8, 2026
Licence
City of Hamilton Open Data Licence (version 1.1, January 2017) Terms
From the source
the district's name on each property's record · each property's address, status and by-law
Derived by HamiltonIQ
the district's property list and counts · the by-law most of its properties carry
HamiltonIQ’s words
the summary sentence
Kept current
One district per name in the register layer's district field; its properties are the rows designated under Part V with that name, and its by-law the one most of them carry.
At a glance
Designation
Part V, Ontario Heritage Act
By-law most properties carry
96-34-H
Properties
112
Also Part IV
0
Streets
9

What an owner may change is set by the district plan and guidelines, which the City applies through heritage permits; its heritage staff can provide the plan and the designating by-law. The city does not publish the district's boundary in its open data, so the map shows the properties only.

Mill Street Heritage Conservation DistrictThe 112 properties the register places in the district; dots link to properties with a page.Parking Lot, Dundas St E — In a heritage conservation district (Part V)321 Dundas St E — In a heritage conservation district (Part V)323 Dundas St E — In a heritage conservation district (Part V)324 Dundas St E — In a heritage conservation district (Part V)325 Dundas St E — In a heritage conservation district (Part V)327 Dundas St E — In a heritage conservation district (Part V)10 Elgin St — In a heritage conservation district (Part V)2 Griffin St — In a heritage conservation district (Part V)4 Griffin St — In a heritage conservation district (Part V)8 Griffin St — In a heritage conservation district (Part V)12 Griffin St — In a heritage conservation district (Part V)20 Griffin St — In a heritage conservation district (Part V)23 Griffin St — In a heritage conservation district (Part V)27 Griffin St — In a heritage conservation district (Part V)1 John St E — In a heritage conservation district (Part V)7 John St E — In a heritage conservation district (Part V)13 John St E — In a heritage conservation district (Part V)19 John St E — In a heritage conservation district (Part V)24 John St E — In a heritage conservation district (Part V)25 John St E — In a heritage conservation district (Part V)26 John St E — In a heritage conservation district (Part V)32 John St E — In a heritage conservation district (Part V)33 John St E — In a heritage conservation district (Part V)38 John St E — In a heritage conservation district (Part V)39 John St E — In a heritage conservation district (Part V)45 John St E — In a heritage conservation district (Part V)142 Main St N — In a heritage conservation district (Part V)143 Main St N — In a heritage conservation district (Part V)155 Main St N — In a heritage conservation district (Part V)182 Main St N — In a heritage conservation district (Part V)200 Main St N — In a heritage conservation district (Part V)6 Mill St N — In a heritage conservation district (Part V)16 Mill St N — In a heritage conservation district (Part V)21 Mill St N — In a heritage conservation district (Part V)24 Mill St N — In a heritage conservation district (Part V)29 Mill St N — In a heritage conservation district (Part V)30 Mill St N — In a heritage conservation district (Part V)34 Mill St N — In a heritage conservation district (Part V)37 Mill St N — In a heritage conservation district (Part V)40 Mill St N — In a heritage conservation district (Part V)43 Mill St N — In a heritage conservation district (Part V)47 Mill St N — In a heritage conservation district (Part V)51 Mill St N — In a heritage conservation district (Part V)57 Mill St N — In a heritage conservation district (Part V)61 Mill St N — In a heritage conservation district (Part V)62 Mill St N — In a heritage conservation district (Part V)65 Mill St N — In a heritage conservation district (Part V)66 Mill St N — In a heritage conservation district (Part V)69 Mill St N — In a heritage conservation district (Part V)72 Mill St N — In a heritage conservation district (Part V)73 Mill St N — In a heritage conservation district (Part V)76 Mill St N — In a heritage conservation district (Part V)80 Mill St N — In a heritage conservation district (Part V)81 Mill St N — In a heritage conservation district (Part V)93 Mill St N — In a heritage conservation district (Part V)94 Mill St N — In a heritage conservation district (Part V)99 Mill St N — In a heritage conservation district (Part V)103 Mill St N — In a heritage conservation district (Part V)107 Mill St N — In a heritage conservation district (Part V)108 Mill St N — In a heritage conservation district (Part V)115 Mill St N — In a heritage conservation district (Part V)116 Mill St N — In a heritage conservation district (Part V)122 Mill St N — In a heritage conservation district (Part V)123 Mill St N — In a heritage conservation district (Part V)127 Mill St N — In a heritage conservation district (Part V)130 Mill St N — In a heritage conservation district (Part V)135 Mill St N — In a heritage conservation district (Part V)140 Mill St N — In a heritage conservation district (Part V)141 Mill St N — In a heritage conservation district (Part V)146 Mill St N — In a heritage conservation district (Part V)154 Mill St N — In a heritage conservation district (Part V)160 Mill St N — In a heritage conservation district (Part V)168 Mill St N — In a heritage conservation district (Part V)174 Mill St N — In a heritage conservation district (Part V)182 Mill St N — In a heritage conservation district (Part V)188 Mill St N — In a heritage conservation district (Part V)198 Mill St N — In a heritage conservation district (Part V)200 Mill St N — In a heritage conservation district (Part V)1-9 Mill St S — In a heritage conservation district (Part V)11 Mill St S — In a heritage conservation district (Part V)15 Mill St S — In a heritage conservation district (Part V)19 Mill St S — In a heritage conservation district (Part V)22 Mill St S — In a heritage conservation district (Part V)26 Mill St S — In a heritage conservation district (Part V)27 Mill St S — In a heritage conservation district (Part V)33 Mill St S — In a heritage conservation district (Part V)37 Mill St S — In a heritage conservation district (Part V)40-42 Mill St S — In a heritage conservation district (Part V)41 Mill St S — In a heritage conservation district (Part V)45 Mill St S — In a heritage conservation district (Part V)46 Mill St S — In a heritage conservation district (Part V)48 Mill St S — In a heritage conservation district (Part V)49 Mill St S — In a heritage conservation district (Part V)50 Mill St S — In a heritage conservation district (Part V)52 Mill St S — In a heritage conservation district (Part V)63 Mill St S — In a heritage conservation district (Part V)72 Mill St S — In a heritage conservation district (Part V)80 Mill St S — In a heritage conservation district (Part V)2 Union St — In a heritage conservation district (Part V)3 Union St — In a heritage conservation district (Part V)5 Union St — In a heritage conservation district (Part V)11 Union St — In a heritage conservation district (Part V)13 Union St — In a heritage conservation district (Part V)14 Union St — In a heritage conservation district (Part V)17 Union St — In a heritage conservation district (Part V)20 Union St — In a heritage conservation district (Part V)23 Union St — In a heritage conservation district (Part V)24 Union St — In a heritage conservation district (Part V)29 Union St — In a heritage conservation district (Part V)36 Union St — In a heritage conservation district (Part V)40 Union St — In a heritage conservation district (Part V)4 Victoria St — In a heritage conservation district (Part V)
District propertyThe outline is the City of Hamilton boundary.

Every property in the district 112

By street, as the City’s register lists them.

Dundas St E

  • Parking Lot, Dundas St E
  • 321 Dundas St E · 1911
  • 323 Dundas St E · 1860Huxley Building
  • 324 Dundas St E · 1835American House
  • 325 Dundas St E · 1860Stock Building
  • 327 Dundas St E · 1900Reid's Harness Shop

Elgin St

  • 10 Elgin St · 1956

Griffin St

  • 2 Griffin St · 1880
  • 4 Griffin St · 1927
  • 8 Griffin St · 1890
  • 12 Griffin St · 1919
  • 20 Griffin St · 1985
  • 23 Griffin St · 1956
  • 27 Griffin St · 1870Thomas House

John St E

  • 1 John St E · 1910
  • 7 John St E · 1880
  • 13 John St E · 1895
  • 19 John St E · 1870David Marshall House
  • 24 John St E · 1988
  • 25 John St E · 1916
  • 26 John St E · 1968
  • 32 John St E · 1870Gilmer House; Donkin House
  • 33 John St E · 1870HIRST; Robert Carson House
  • 38 John St E · 1914Ferdinand Slater House
  • 39 John St E · 1909Albert Slater House
  • 45 John St E · 1905Henry Slater House

Main St N

  • 142 Main St N · 1890
  • 143 Main St N · 1890
  • 155 Main St N · 1925Crimson Maples
  • 182 Main St N · 1860Grace Anglican Church and Parsonage
  • 200 Main St N · 1921Mary Hopkins Elementary School

Mill St N

  • 6 Mill St N · 1955Bell Telephone Building
  • 16 Mill St N · 1900
  • 21 Mill St N · 1865Former Wesleyan Methodist Church
  • 24 Mill St N · 1900
  • 29 Mill St N · 1897
  • 30 Mill St N · 1895
  • 34 Mill St N · 1900
  • 37 Mill St N · 1895
  • 40 Mill St N · 1867Former Nicholson & Stetler Jam Factory
  • 43 Mill St N · 1850Forstner House
  • 47 Mill St N · 1889
  • 51 Mill St N · 1910Rose Pebble Place
  • 57 Mill St N · 1881
  • 61 Mill St N · 1921Cairns House; Parsonage
  • 62 Mill St N · 1867Philp House
  • 65 Mill St N · 1998
  • 66 Mill St N · 1925
  • 69 Mill St N · 1910
  • 72 Mill St N · 1890
  • 73 Mill St N · 1852Walnut Shade
  • 76 Mill St N · 1890Slater House
  • 80 Mill St N · 1853Knox Presbyterian Church
  • 81 Mill St N · 1864
  • 93 Mill St N · 1864
  • 94 Mill St N · 1895
  • 99 Mill St N · 1900W.G. Spence Grocer
  • 103 Mill St N · 1939
  • 107 Mill St N · 1855
  • 108 Mill St N · 1850Wilson House
  • 115 Mill St N · 1947
  • 116 Mill St N · 1920
  • 122 Mill St N · 1900
  • 123 Mill St N · 1909
  • 127 Mill St N · 1916
  • 130 Mill St N · 1900
  • 135 Mill St N · 1916
  • 140 Mill St N · 1946Kitching-Steepe Funeral Home
  • 141 Mill St N · 1889
  • 146 Mill St N · 1910Kitching-Steepe Funeral Home
  • 154 Mill St N · 1890
  • 160 Mill St N · 1945
  • 168 Mill St N · 1895
  • 174 Mill St N · 1897Allen House
  • 182 Mill St N · 1963
  • 188 Mill St N · 1880
  • 198 Mill St N · 1940
  • 200 Mill St N · 1956

Mill St S

  • 1-9 Mill St S · 1842Eager's General Store; Weeks Block
  • 11 Mill St S · 1970Haynes Building
  • 15 Mill St S · 1900
  • 19 Mill St S · 1890
  • 22 Mill St S · 1910Davies House
  • 26 Mill St S · 1850Terryberry Cottage
  • 27 Mill St S · 1890Attridge Transportation
  • 33 Mill St S · 1940
  • 37 Mill St S · 1870
  • 40-42 Mill St S · 1851Cummer Stone Row
  • 41 Mill St S · 1840Read Baker House; Kennedy House
  • 45 Mill St S · 1890
  • 46 Mill St S · 1994
  • 48 Mill St S · 1994
  • 49 Mill St S · 1987
  • 50 Mill St S · 1967
  • 52 Mill St S · 1954
  • 63 Mill St S · 1850Maplebank
  • 72 Mill St S · 1910
  • 80 Mill St S · 1890

Union St

  • 2 Union St · 1890
  • 3 Union St · 1850
  • 5 Union St · 1983
  • 11 Union St · 1852
  • 13 Union St · 1852
  • 14 Union St · 1910
  • 17 Union St · 1900
  • 20 Union St · 1900
  • 23 Union St · 1912
  • 24 Union St · 1870
  • 29 Union St · 1962
  • 36 Union St · 1850Eastwood House
  • 40 Union St · 1850

Victoria St

  • 4 Victoria St · 1996Grindstone Mill Condominiums; Former Slater Lumber Property

Named in the district, designated on their own 2

The City’s register names the district on these records but does not record them as designated under Part V.

Sources

Every factual claim above traces to one of these documents.

  1. City of Hamilton

    Heritage Properties (open data layer)

    Retrieved October 8, 2026

  2. City of Hamilton

    Municipal Heritage Register

    Retrieved October 8, 2026

  3. City of Hamilton

    Heritage Properties: open data metadata (PDF)

    Retrieved October 8, 2026

  4. Government of Ontario

    Ontario Heritage Act, R.S.O. 1990, c. O.18

    Retrieved October 8, 2026

City of Hamilton Open Data Licence (version 1.1, January 2017). Licence. Records checked October 8, 2026.