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By-law 2010-0050 · Environmental and Open Space Zones

OS3 · Open Space Three

OS3 is the Open Space Three zone under the Town of Halton Hills' Comprehensive Zoning By-law 2010-0050. It is drawn on 44 zone polygons covering about 42 hectares.

Last checked October 8, 2026Town of Halton HillsHow we know
Publisher
Town of Halton Hills
Source dataset
Zoning By-law 2010-0050 (Town of Halton Hills MapLinks layer)
Official record
Part 10 of Comprehensive Zoning By-law 2010-0050 (PDF, Town of Halton Hills)
Retrieved
October 8, 2026
Licence
Town of Halton Hills Open Data License (MapLinks layers reused with the Town's permission) Terms
From the source
the zone code on each polygon · the zone's name, from Section 2.1, Zones (Comprehensive Zoning By-law 2010-0050, December 2025 office consolidation) · the exception and holding markers on each polygon
Derived by HaltonHillsIQ
polygon count and hectares, from each polygon's outline · and wards, by the point inside each polygon · the simplified outlines on the map
HaltonHillsIQ’s words
the summary sentence
Kept current
Rebuilt from the Town of Halton Hills' layer by the site's data pipeline; every count on this page is from the record checked October 8, 2026.
At a glance
Zone code
OS3
Name in the by-law
Open Space Three
By-law
Comprehensive Zoning By-law 2010-0050
Zone group
Environmental and Open Space Zones
Polygons
44
Hectares
42
With a site-specific exception
0
With a holding provision
0
0
OS3 zones under By-law 2010-005016 of 44 zone polygons drawn, largest first.OS3 · 4.882 haOS3 · 2.849 haOS3 · 1.896 haOS3 · 1.879 haOS3 · 1.853 haOS3 · 1.827 haOS3 · 1.653 haOS3 · 1.537 haOS3 · 1.47 haOS3 · 1.456 haOS3 · 1.401 haOS3 · 1.225 haOS3 · 1.176 haOS3 · 1.126 haOS3 · 1.008 haOS3 · 0.933 ha
OS3 zone polygons (By-law 2010-0050)The outline is the Town of Halton Hills boundary.

The 28 smallest polygons are too small to see at this scale and are not drawn; every polygon is counted.


Where OS3 applies

Polygons and hectares by the Town of Halton Hills’ outlines, each polygon placed by a point inside it. 44 zone polygons fall outside every outline.

Wards: Ward 2 (17), Ward 1 (11), Ward 3 (8), Ward 4 (8).


What the zone permits

The permitted uses and regulations for OS3 are set out in Part 10 of Comprehensive Zoning By-law 2010-0050 (PDF, Town of Halton Hills). HaltonHillsIQ does not paraphrase them: an exception, a holding provision or a later amendment can change what applies to one lot. The Town of Halton Hills’ Compliance Memo Request is the Town of Halton Hills’ own answer for a property. The interactive zoning map shows the zone on a single lot.

Sources

Every factual claim above traces to one of these documents.

  1. Town of Halton Hills

    Zoning By-law 2010-0050 (Town of Halton Hills MapLinks layer)

    Retrieved October 8, 2026

  2. Town of Halton Hills

    Comprehensive Zoning By-law 2010-0050 (PDF, Town of Halton Hills)

    Retrieved October 8, 2026

  3. Town of Halton Hills

    Zoning (Town of Halton Hills)

    Retrieved October 8, 2026

Town of Halton Hills Open Data License (MapLinks layers reused with the Town's permission). Terms. Records checked October 8, 2026.