# List of historic buildings in Markham, Ontario

This is a list of historic building in Markham, Ontario, Canada. The earliest structures that were built in Markham, Ontario originated from indigenous settlements in the region, including the Iroquois, the Huron Wendat, the Petun and the Neutral Nation. However, Markham's oldest standing structures dates back to its earliest European settlers, who settled the area in 1794.
The following article is a list of historic buildings in Markham up to 1850.

## Existing historic buildings

Most historic structures and properties are presently registered with the Markham Register of Property of Cultural Heritage Value or Interest. A number of buildings and properties listed on the registry are protected under the Ontario Heritage Act. Buildings and structures in the registry are either listed as individual properties, or as a part of a larger heritage conservation district. The oldest structure listed on the registry is Philip Eckardt Log House, built in 1800.
The majority of Markham's oldest standing structures were built as private residences, many of which are still used for that purpose. However, some residences have been re-purposed for commercial use.

### Location

Historic buildings and structures are spread throughout Markham, although several historic buildings are clustered in four "heritage conservation districts," Buttonville, Markham Village, Thornhill, and Unionville. Developments in the heritage conservation districts is required to follow municipal guidelines laid out in the heritage district's conservation plan. These conservation plans were created to protect historic buildings, and to ensure that new developments within these districts complement the "character of the neighbourhood".
In addition to the heritage conservation districts, other clusters of heritage buildings are also situated at the Markham Museum and Markham Heritage Estates. The former is an open-air local history museum; while the latter serves as the city's "subdivision last resort", an area reserved for relocated heritage buildings that cannot be retained on their existing site. The museum and subdivision are both situated near the Markham Village heritage conservation district, although they do not form a part of said district.

### List of historic buildings in Markham

The following is a list of the oldest buildings in Markham that are still erect, up to 1850, as listed by the Markham Register of Property of Cultural Heritage Value or Interest:
| Building | Year completed | Architectural style | Listed address | Heritage district | Ward |
| Philip Eckardt Log House | 1800 | N/A - Basic Log cabin | 128 Harbord Street | — | 6 |
| Christian Reesor Homestead | 1806 | Georgian | 9035 Reesor Road | — | 5 |
| 20 Ruggles Avenue | 1809 | Georgian | 20 Ruggles Avenue | — | 1 |
| Heintzman House | 1816 | Regency | 135 Bay Thorn Drive | — | 1 |
| Reverend William Jenkins House | 1817 | Neoclassical | 11022 Kennedy Road | — | 6 |
| David Whaley House | 1820 | Vernacular | 7218 Reesor Road | — | 7 |
| Joshua Miller House | 1820 | Georgian | 10 Heritage Corners Lane | — | 4 |
| Christian K. Hoover House | 1824 | N/A - Basic Log cabin | 9350 Markham Road | — | 4 |
| 6889 14th Avenue | 1826 | Georgian | 6889 14th Avenue | — | 7 |
| 4130 19th Avenue | 1826–1850 | Regency | 4130 19th Avenue | — | 6 |
| Gapper-Duncan House | 1828 | Georgian & Regency | 6 Wismer Place | — | 4 |
| Johnston-Barker House | 1828 | Georgian & Vernacular | 53 Main Street Markham South | Markham Village | 4 |
| Byer Family Home | 1829 | Georgian | 10235 Highway 48 | — | 5 |
| Eckardt-Stiver House | 1829 | Ontario Cottage & Regency | 206 Main Street Unionville | Unionville | 3 |
| Thomas and Sarah Hasty House | 1829 | Neoclassical | 11482 McCowan Road | — | 6 |
| Peter Reesor Homestead | 1830 | Georgian | 7273 14th Avenue | — | 7 |
| Reverend William Jenkins House | 1830 | Neoclassical | 11022 Kennedy Road | — | 6 |
| Nathan Chapman Jr. House | 1832 | Ontario Cottage & Regency | 9350 Markham Road | — | 4 |
| Cashel Road House | 1835 | Georgian | 4510 Elgin Mills Road East | — | 6 |
| John Wurtz House | 1835 | Regency | 8847 Reesor Road | — | 5 |
| Joseph & Sarah Henderson House | 1835 | Georgian | 53 Main Street Markham North | Markham Village | 4 |
| Unionville Wheelwright and Blacksmith Snop | 1835 | | 166 Main Street Unionville | Unionville | 3 |
| George Miller House | 1839 | Neoclassical | 9318 Reesor Road | — | 5 |
| Thomas McMackon House | 1840 | Gothic Revival & Vernacular | 8328 14th Avenue | — | 7 |
| David Badgerow House | 1840 | Georgian | 8331 14th Avenue | — | 7 |
| Samuel Kendrick Farmhouse | 1840 | Georgian | 4822 19th Avenue | — | 6 |
| Chauncy Crosby House | 1840 | Georgian | 10451 Highway 48 | — | 5 |
| William Reynolds House | 1840 | Ontario Cottage & Regency | 7482 Highway 7 East | — | 5 |
| Adam Hagler House | 1840 | Georgian & Vernacular | 39 Artisan Trail | — | 2 |
| William Grant House | 1840 | Georgian & Vernacular | 2665 Bur Oak Avenue | — | 5 |
| 15 Colborne Street | 1840 | Georgian & Vernacular | 15 Colborne Street | Thornhill | 1 |
| John Jacob Lunau House | 1840 | Gothic Revival | 12 David Gohn Circle | — | 4 |
| William Macklin House | 1840 | Neoclassical | 2501 Denison Street | — | 7 |
| 4478 Elgin Mills Road East | 1840 | Neoclassical | 4478 Elgin Mills Road East | — | 6 |
| Adam Clendenen House | 1840 | Georgian | 8 Green Hollow Court | — | 5 |
| John Reesor House | 1840 | Georgian, Gothic Revival & Vernacular | 1 Kalvinster Drive | — | 5 |
| St. Philip's Anglican Church Manse | 1840 | Georgian | 9418 Kennedy Road | — | 6 |
| Sommerfeldt Homestead | 1840 | Georgian | 10379 Kennedy Road | — | 6 |
| 39 Langstaff Road East | 1840 | | 39 Langstaff Road East | — | 1 |
| James and Sarah Osborn Double House | 1840 | Georgian | 61 Main Street Markham North | Markham Village | 4 |
| Old Presbyterian Manse | 1840 | Neoclassical | 89 Main Street Markham South | Markham Village | 4 |
| Jacob Pingle Sr. House | 1840 | Vernacular | 4638 Major Mackenzie Drive East | — | 6 |
| 5480 Major Mackenzie Drive East | 1840 | Georgian | 5480 Major Mackenzie Drive East | — | 6 |
| William Read House | 1840 | Georgian | 9899 Markham Road | — | 4 |
| 11137 McCowan Road | 1840 | Neoclassical | 11137 McCowan Road | — | 6 |
| Abraham Koch House | 1840 | Georgian | 16 Moore's Court | — | 7 |
| Samuel Reesor Homestead | 1840 | Georgian | 7450 Reesor Road | — | 7 |
| White Hill Mills House | 1840 | Georgian | 7939 Reesor Road | — | 7 |
| Noble Tenant Farmer House | 1840 | Georgian | 11122 Reesor Road | — | 5 |
| Peterson-Jarvis House | 1840 | Gothic Revival | 99 Thoroughbred Way | — | 6 |
| 46 Timbermill Crescent | 1840 | Neoclassical | 46 Timbermill Crescent | — | 4 |
| Alexander McPherson House | 1840 | Georgian | 31 Victory Lane | — | 8 |
| Schell House | 1840 | Gothic Revival & Vernacular | 11242 Warden Avenue | — | 2 |
| Buttonville Mill House | 1840 | | 2 Yans Way | Buttonville | 2 |
| William Cornelius Home | 1840 | Gothic Revival & Vernacular | 8346 York Durham Line | — | 7 |
| Tomlinson-Smith House | 1841 | Georgian | 7662 Ninth Line | — | 7 |
| Briarwood Farm | 1842 | Georgian | 4031 16th Avenue | — | 3 |
| George Pingle Jr. House | 1842 | Gothic Revival & Vernacular | 4022 Major Mackenzie Drive East | — | 6 |
| John Lane House | 1842 | Gothic Revival & Vernacular | 111 John Street | Thornhill | 1 |
| Almira Flour and Woolen Mill | 1844 | Georgian | 4160 19th Avenue | — | 6 |
| John Klein House/James Bowman House | 1844 | Georgian | 4165 19th Avenue | — | 6 |
| 170 John Street | 1845 | Neoclassical | 170 John Street | Thornhill | 1 |
| Almira Mill Workers Cottage | 1845 | Georgian & Vernacular | 4176 14th Avenue | — | 6 |
| Archibald Fenwick House | 1845 | Ontario Cottage & Regency | 7 Heritage Corners Lane | — | 4 |
| Crinklewood Mansion | 1845 | Georgian & Neoclassical | 54 Crinklewood Crescent | Thornhill | 1 |
| John G. Mustard House | 1844 | Georgian | 11091 Woodbine Avenue | — | 6 |
| Lane House | 1845 | Georgian | 26 John Street | Thornhill | 1 |
| Thomas Lownsborough House | 1845 | Gothic Revival & Vernacular | 9392 Kennedy Road | — | 6 |
| Samuel Eakin House | 1845 | Ontario Cottage & Regency | 10725 Kennedy Road | — | 6 |
| John Edey House | 1845 | Neoclassical | 4 Leahill Drive | Thornhill | 1 |
| Workers' Cottage | 1845 | Ontario Cottage & Regency | 260 Main Street Unionville | Unionville | 3 |
| Richard and Margaret Sylvester House | 1845 | Georgian | 88 Main Street Markham South | Markham Village | 4 |
| Thomas Peach House | 1845 | Georgian | 10387 McCowan Road | — | 6 |
| Phillip Eckardt Jr. House | 1845 | Georgian | 60 Meadowbrook Lane | — | 3 |
| 11303 Warden Avenue | 1845 | Georgian | 11303 Warden Avenue | — | 6 |
| Robert A. West General Store | 1845 | Neoclassical | 7771 Yonge Street | Thornhill | 1 |
| William Lane House | 1846 | Georgian | 14 Colborne Street | Thornhill | 1 |
| Goodfellow/Arthur Lismer House | 1846 | Georgian | 22 John Street | Thornhill | 1 |
| Union Mills House | 1846 | Gothic Revival & Vernacular | 209 Main Street Unionville | Unionville | 3 |
| 7699 Yonge Street | 1846 | Georgian | 7699 Yonge Street | Thornhill | 1 |
| St. Luke's Roman Catholic Church and Manse | 1847 | Gothic Revival | 15 Church Lane | Thornhill | 1 |
| First Unionville Congregational Church | 1847 | Vernacular | 149 Main Street Unionville | Unionville | 3 |
| Warren Bishop House | 1847 | Georgian | 26 David Gohn Circle | — | 4 |
| Ninth Line Baptist Church | 1848 | Gothic Revival | 9350 Markham Road | — | 4 |
| William Morrison House | 1848 | Georgian | 12 Buttonville Crescent West | Buttonville | 2 |
| Joseph Marr House | 1848 | Georgian | 3 Heritage Corners Lane | — | 4 |
| Ambrose Noble House | 1848 | Georgian & Neoclassical | 11 Heritage Corners Lane | — | 4 |
| Frizzell House | 1848 | Gothic Revival & Vernacular | 18 John Street | Thornhill | 1 |
| Holy Anne's Cottage | 1848 | Georgian | 32 John Street | Thornhill | 1 |
| Abraham B. Ramer House | 1848 | Georgian | 304 Main Street Markham North | Markham Village | 4 |
| Henry Pingle House | 1849 | Arts and Crafts | 11 Tannis Street | — | 6 |
| 31 Colborne Street | 1850 | Georgian | 31 Colborne Street | Thornhill | 1 |
| 10701 Highway 48 | 1850 | Georgian & Edwardian | 10701 Highway 48 | — | 5 |
| 10535 McCowan Road | 1850 | Georgian | 10535 McCowan Road | — | 6 |
| 11287 McCowan Road | 1850 | Neoclassical | 10701 McCowan Road | — | 6 |
| Brother Haton House | 1850 | Georgian | 10754 Victoria Square Boulevard | — | 2 |
| Christian Hoover House | 1850 | Georgian | 11274 Highway 48 | — | 6 |
| Daniels Fairty House | 1850 | Neoclassical | 7060 Markham Road | — | 7 |
| David Burke House | 1850 | Georgian | 10531 Reesor Road | — | 5 |
| David Chapman House | 1850 | Neoclassical | 148 John Street | Thornhill | 1 |
| Henry and Susan Wideman House | 1850 | Neoclassical | 10484 Ninth Line | — | 5 |
| Jacob Pingle House | 1850 | Gothic Revival & Vernacular | 8 David Gohn Circle | — | 4 |
| Jacob Ramsay House | 1850 | Vernacular | 20 David Gohn Circle | — | 4 |
| Jacob Size House | 1850 | Gothic Revival | 16 David Gohn Circle | — | 4 |
| James Collins House | 1850 | Georgian | 11223 Reesor Road | — | 5 |
| James Dimma House | 1850 | Georgian | 7933 14th Avenue | — | 7 |
| John Koch House/Formerly The Jacob Wideman House | 1850 | Georgian & Regency | 10062 Highway 48 | — | 6 |
| John Cameron Jr House | 1850 | Georgian | 25 Fairway Heights Drive | Thornhill | 1 |
| John Pool House | 1850 | Georgian | 9768 Reesor Road | — | 5 |
| John Ramer Homestead and Barn | 1850 | Gothic Revival & Vernacular | 6278 19th Avenue | — | 5 |
| John Stiver House | 1850 | Neoclassical | 1 Millbrook Gate | Buttonville | 2 |
| Mills Double Cottage 1 | 1850 | Georgian | 37 Colborne Street | Thornhill | 1 |
| Mills Double Cottage 2 | 1850 | Georgian | 39 Colborne Street | Thornhill | 1 |
| Nicholas Reesor House and Frame House | 1850 | Georgian | 8724 Reesor Road | — | 5 |
| Old Driveshed in Victoria Square | 1850 | Gothic Revival | 10762 Victoria Square Boulevard | — | 2 |
| Phillips-Teasdale House | 1850 | Gothic Revival | 4 Alexander Hunter Place | — | 4 |
| Smith House | 1850 | Neoclassical | 7507 Kennedy Avenue | — | 8 |
| William Forster House | 1850 | Georgian | 527 William Forster Road | — | 5 |

## List of early demolished buildings

The following were notable buildings and structures that were erected in Markham by 1850, but were later demolished:
| Building | Location | Year Completed | Comment |
| Lutheran School House | Located north side of Lutheran Cemetery at Berczy Historical Settlement in Berczy Village | c. 1800s | Little details available but school offered schooling in German only led by Rev. George Sigmund Liebich |
| School Section # 9 | SE corner of Main Street Unionville and Highway 7 | 1832 | Was main school for Unionville until #10 built 1858; location likely in vacant lot once occupied by service station. |
| School Section #10 | Main Street Unionville, now north parking lot at Unionville Public School | c. 1830s | Replaced by new schoolhouse in 1892, additions added in 1949 and 1955; demolished and replaced 1977 |
| Union Mills | Along Rouge River in Unionville | 1841 | Burned down 1934; located on west side of Main Street South and Rouge River (near site of Bill Crothers Secondary School) |
| Grace Anglican Church | 8th Line (Markham Main Street South) and Old Wellington Street | 1848 | Demolished 1963 and now site of Esso gas station. Grace Church moved to Parkway Avenue. |
| Thomas Speight Wagon Works Factory | approximately 20 Main Street North (west) and 25 Main Street North (east), Markham Village | c. 1840s | Originally on west side and later moved to east side of Main Street; operations ceased in 1917 and burned down with garage in 1922; both sites now occupied by commercial buildings |
| Ratcliff Sawmill | Lot 35, Concession 6 (Stouffville Road and Kennedy Road), Stouffville | c. 1840s–1850s | Built by William Ratcliff and remained operational until 1970s, but destroyed by fire 1982, but mill equipment saved and used in Ashmore Reesor's mill at Markham Museum. Family owned Century Mill Lumber continues to operate on site |