Heritage property

121 Mill Street

121 Mill Street, Milton, is designated under Part IV of the Ontario Heritage Act by By-law 39-1997 (1997).

Last checked October 8, 2026Town of MiltonHow we know

Publisher: Town of Milton
Source dataset: Designated Heritage Properties (open data layer)
Official record: Town of Milton heritage register page
Retrieved: October 8, 2026
Licence: Open Government Licence – Milton (version 2.0) Terms
From the source: status under the Ontario Heritage Act · by-law · the description, reproduced verbatim · position
Derived by MiltonIQ: nearby properties, parks and facilities
MiltonIQ’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: 39-1997
Designated: 1997
Property type: Residential

121 Mill StreetThe outline is the Town of Milton boundary.

Historical significance

JOHN COLLING HOUSE

As the Town of Milton’s register records it, reproduced verbatim.

What the status means

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

Whether a specific alteration needs a heritage permit is the Town’s call; ask its heritage planning staff before starting work. The designating by-law (39-1997) sets out what is protected; the Town can provide it.

Sources

Every factual claim above traces to one of these documents.

Town of Milton
Designated Heritage Properties (open data layer)
Retrieved October 8, 2026
Town of Milton
Heritage Register
Retrieved October 8, 2026
Town of Milton
Municipal Heritage Register, updated July 2026 (PDF)
Retrieved October 8, 2026
Government of Ontario
Ontario Heritage Act, R.S.O. 1990, c. O.18
Retrieved October 8, 2026

Open Government Licence – Milton (version 2.0). Licence. Register checked October 8, 2026; the Town’s record is authoritative.