Heritage property

548 Old Dundas Rd

548 Old Dundas Rd, Hamilton, built in 1788, is designated under Part IV of the Ontario Heritage Act by By-law 90-1.

Last checked October 8, 2026City of HamiltonHow we know

Publisher: City of Hamilton
Source dataset: Heritage Properties (open data layer)
Official record: City of Hamilton heritage register page
Retrieved: October 8, 2026
Licence: City of Hamilton Open Data Licence (version 1.1, January 2017) Terms
From the source: status under the Ontario Heritage Act · by-law · year built · position
Derived by HamiltonIQ: nearby properties, parks and facilities
HamiltonIQ’s words: the summary sentence · what the status means
Kept current: Rebuilt from the city's register layer by script; the city's record is authoritative.

At a glance

Status: Designated (Part IV)
As the register records it: Designated
By-law: 90-1
Built: 1788
Easement: Municipal
Name: Ancaster Old Mill
Former municipality: Ancaster

548 Old Dundas RdThe outline is the City of Hamilton boundary.

What the status means

Designated individually under Part IV of the Ontario Heritage Act by a City by-law. Altering the heritage attributes, or demolishing, needs the City's consent.

Whether a specific alteration needs a heritage permit is the City’s call; ask its heritage planning staff before starting work. The designating by-law (90-1) sets out what is protected; the City can provide it.

Sources

Every factual claim above traces to one of these documents.

City of Hamilton
Heritage Properties (open data layer)
Retrieved October 8, 2026
City of Hamilton
Municipal Heritage Register
Retrieved October 8, 2026
City of Hamilton
Heritage Properties: open data metadata (PDF)
Retrieved October 8, 2026
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. Register checked October 8, 2026; the City’s record is authoritative.