MarkhamHeritageHeritage Conservation Districts

Unionville Heritage Conservation District Plan

Published by City of Markham

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This is the City of Markham’s document, as published on its website on 18 October 2026. The municipality may have changed it since: check the current version at the source. Legal notice

Overview

The Unionville Heritage Conservation District Plan, the City of Markham's plan under Part V of the Ontario Heritage Act for old Unionville, in ten parts with the district map. Part A gives the district overview, character, boundary, building classification and principles; Part B building, streetscape and open space policies, special sites such as Union Mills and the Victoria Avenue Bridge, and planning policies; Part C implementation; Part D design guidelines for new buildings, additions and alterations, commercial and landscape features.

What it covers

  • Part A District Overview
  • 1.0 Introduction
  • 2.0 Heritage Conservation District Designation
  • 2.4 Building Classification
  • 3.0 Heritage Conservation District Principles
  • 4.0 Building Policies
  • 4.2 Heritage Buildings
  • 4.5 Commercial Features
  • 5.0 Streetscape and Open Space Policies
  • 5.11 Victoria Avenue Bridge
  • 6.0 Policies for Special Sites and Projects
  • 7.0 Planning and Development Policies
  • 8.0 Implementation
  • 8.2 Application Review Process
  • 9.0 Guidelines for Buildings and Surroundings
  • 9.1 Streetscapes
  • 9.2 New Buildings
  • 9.3 Additions to Heritage Buildings
  • 9.4 Alterations to Heritage Buildings
  • 9.5 Additions and Alterations to Non Heritage Buildings
  • 9.6 Commercial Features
  • 9.7 Landscape Features
  • Selected Bibliography
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