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Toronto Parks Atlas
Graydon Hall Park, site photograph
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Othercluster ·Walkable Mid-Rise Neighbourhood Parks (large-scale)Parkwoods-Donalda (45)confidence moderate

Graydon Hall Park

Other, above average overall (score 42, rank ~79th percentile). Strongest: connectivity; weakest: edge activation.

Aerial, City of Toronto orthophoto, ~8 cm/px source · cached 5/9/2026

Graydon Hall Park scores 42 / 100. Strongest dimensions: connectivity and enclosure / eyes on park. Weakest: edge activation (0). Border-vacuum risk is low. This score is a transparent reading of Jane Jacobs-style vitality factors, not a definitive judgment.

Best forvaries (see metrics)

Area · 5.12 ha

What's here

Recreation
PlaygroundTennis
Vitality Score
42/100

Weighted across six dimensions · confidence 72%

Data Confidence
42.0 / 100
Citywide
79th
of all 3,788 parks
Among Other
97th
same primary typology
Expected for similar parks
28
median in large Other (n=50)
Performance gap
+14
raw − expected · context confidence high
strong overperformer

Scores are not bell-curved. Percentiles and expected scores provide context without changing the underlying model.

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Street context. Park polygon highlighted on the citywide map.

Boundary: OpenStreetMap contributors (ODbL).

Explain this score

Where did the 42 come from? Each weighted contribution against a neutral 50 baseline. Green = pushed up; red = pulled down.

Download JSON
What pushed this score up or down vs a neutral 50weight × score
Edge Activation0 · p23
-12.5
Amenity Diversity21 · p70
-5.8
Connectivity72 · p93
+4.4
Border Vacuum Risk12 (risk)
+3.8
Enclosure / Eyes on Park71 · p71
+2.1
Natural Comfort50 · p64
+0.1

Sum of contributions = the headline score. A negative bar means that dimension dragged the park below the city-wide neutral baseline.

Why this park works

Graydon Hall Park works because its connectivity score (72) is in the top tier and its enclosure (71) is also above-average (19 transit stops sit within a 400 m walk; 10 intersections fall within 100 m of the edge).

What limits this park

Graydon Hall Park is held back by edge activation (0, bottom quartile): the surrounding streets carry too few active uses to spill into the park.

Most distinctive characteristic

Most distinctive feature: exceptionally high connectivity (72, top decile).

Jacobs reading

Graydon Hall Park sits between an urban social park and an ecological retreat: moderately useful for both, exceptionally suited to neither.

Tradeoffs

  • The park is enclosed by buildings (71) but the surrounding streets are quiet (edge activation 0): frame without animation.

Performance in context

  • This park is a strong overperformer for its cohort: raw 42 versus an expected 28 for similar parks (large Other) (gap +14).

Typology classification

confidence 30%
Other

Classified as Other: does not meet any specific typology threshold (5.1 ha, 2 amenity types, frontage 5.6/100m)

Edge Activation

25% weightpartial 60%
0.0 / 100

Within 100 m of the park edge: 6 active uses (transit_stop) and 11 dead/hostile uses (parking_lot). Active edges keep "eyes on the park" through the day; parking lots, blank institutional walls, rail and highway frontages drain street life.

Source: OSM POIs (amenity/shop) + Toronto Building Footprints + land use

Connectivity

20% weightmeasured 85%
71.9 / 100

Connectivity blends paths, intersections, transit, entrances, and edge density. This park has 9 mapped paths/walkways and 33 sidewalk segments within 50 m; 10 street intersections within 100 m; 19 transit stops within a 400 m walk; 17 estimated access points across ~1,360 m of perimeter. moderate edge density, small superblock penalty applied. Source coverage: centreline, pedestrian_network, transit_osm.

Streets within 25 m9
Intersections within 100 m10
Paths/walkways (50 m)9
Sidewalk segments (50 m)33
Transit stops (400 m)19
Estimated entrances17
Edge connections / 100 m perimeter0.66
Park perimeter1,360 m

Source: Toronto Centreline V2 + Pedestrian Network + OSM transit stops

Amenity Diversity

20% weightmeasured 75%
21.0 / 100

2 distinct amenity types in the park (playground, tennis). Diversity, not raw count, drives the score so a park with many distinct activity types can outrank a larger park that repeats the same use.

Source: Toronto Parks & Recreation Facilities + OSM amenity tags

Natural Comfort

15% weightmeasured 75%
50.4 / 100

Natural-comfort components for this park: 10.6% estimated tree canopy; nearest waterbody ~504 m; 29 city-mapped trees inside the polygon (5.7/ha). Reading: exposed. Source coverage: treed_area, waterbodies, street_trees. Impervious surface is approximated (Toronto's authoritative layer ships only as a raster GeoTIFF).

Canopy coverage10.6%
Canopy area0.55 ha
Inside ravine system0.0%
Water surface inside park0.0%
Nearest water (if outside park)504 m
Estimated green100.0%
City-mapped trees inside polygon29
Tree density5.7 / ha
Cover diversity (Shannon, 0 to 100)48.9
Sample points used216

Source: Toronto Treed Area + Ravine + Waterbodies + Street Tree Inventory

Enclosure / Eyes on Park

10% weightmeasured 80%
70.5 / 100

76 buildings within 25 m of the park edge (3 mid-rise, 59 low-rise, 14 tower); avg edge height 16.7 m (~6 floors); 5.6 buildings per 100 m of 1,360 m perimeter (strong frontage density); edges are at a Jacobs-scale walkable mid-rise (3 to 7 floors); 14 towers ≥ 40 m within 25 m of the edge. "Eyes on the park" come strongest from the 3 mid-rise edge buildings.

Buildings within 25 m76
Buildings within 50 m76
Avg edge height16.7 m (~6 floors)
Tallest edge building80.0 m
Mid-rise (3 to 7 floors)3
Low-rise (< 3 floors)59
Towers (≥ 13 floors)14
Frontage density5.59 per 100 m perimeter
Mid-rise share of edge4%
Tower share of edge18%
Blank-edge share (proxy)0%
Park perimeter1,360 m

Source: Toronto 3D Massing (building footprints + heights)

Border Vacuum Risk

10% weightpartial 60%
12.0 risk

Border-vacuum factors within 50 m of the park: parking_lot. Jacobs warned that highways, rail, parking lots and blank institutional edges act as "vacuums" that suppress foot traffic and isolate the park from its neighbourhood.

Source: Toronto Street Centreline (highways) + rail layer + OSM landuse + building footprints

Equity Context

contextinferred 15%
50.0 / 100

Equity Context requires inputs not yet loaded for this park (Toronto Neighbourhood Profiles). Score is held at a neutral 50 with low confidence. Read with caution.

Source: Toronto Neighbourhood Profiles

Amenities (2 types · 6 records)

  • playground
  • tennis

Nearby active-edge features (38)

  • transit stop: 20 Greydon Hall Drive3 m
  • transit stop3 m
  • transit stop16 m
  • transit stop16 m
  • parking lot46 m
  • transit stop48 m
  • transit stop50 m
  • parking lot65 m
  • parking lot65 m
  • parking lot66 m
  • parking lot69 m
  • parking lot75 m
  • parking lot83 m
  • parking lot87 m
  • parking lot88 m
  • parking lot94 m
  • parking lot97 m
  • parking lot103 m
  • parking lot104 m
  • transit stop: Duncan Mill Rd at Don Mills Road east side stop112 m
  • transit stop116 m
  • parking lot120 m
  • parking lot130 m
  • transit stop130 m
  • transit stop: Graydon Hall Drive145 m
  • parking lot150 m
  • highway: Don Valley Parkway150 m
  • transit stop: 2040 Don Mills Road154 m
  • parking lot160 m
  • parking lot163 m
  • transit stop: Duncan Mill Rd at Don Mills Road west side stop173 m
  • transit stop: Duncan Mill Road174 m
  • parking lot175 m
  • transit stop: Duncan Mill Rd at Don Mills Road west side stop177 m
  • transit stop: Underpass Gate at Fenelon Drive178 m
  • parking lot181 m
  • transit stop: Underpass Gate at Fenelon Drive194 m
  • parking lot197 m

Park profile

Five-axis radar across the structural dimensions.

Edge ActivationConnectivityAmenity DiversityNatural ComfortEnclosureGraydon Hall Park
Edge activation, connectivity, amenity diversity, natural comfort, and enclosure, each 0 to 100.

Citywide percentile ranks

Across all Toronto parks in the dataset.

  • Overall vitality
    79th
  • Edge activation
    23th
  • Connectivity
    93th
  • Amenity diversity
    70th
  • Natural comfort
    64th
  • Enclosure
    71th

Most similar parks

Closest in metric space across the five structural dimensions.

Most opposite parks

Furthest in metric space. Useful for recognising what kind of park this isn’t.

Human activity signals: not available

No activity signals have landed for this park yet. The model has scored its physical form but it can’t yet say how often it’s programmed, photographed, or walked through. See /data-ethics for what we will and will not collect.

Does this score feel accurate?

Your read of Graydon Hall Parkmatters. We’re testing whether the model lines up with how people actually use the park. Submissions are stored locally; no account needed.

Tell us how this park feels

We measure structure (canopy, edges, connectivity). You measure feeling. Both matter, and disagreement is itself useful civic data.

Rate this park on as many dimensions as you have an opinion about. 1 = not at all, 5 = strongly. Skip the ones you don't feel sure about. Aggregated only, no comments stored at the row level.

feels socially active
feels comfortable
feels safe
feels connected
feels welcoming
feels ecological / natural
feels good for lingering
feels family-friendly
feels culturally important
70%

What would improve this park?

Generated from the weakest measured dimensions: a starting point, not a prescription.

  • Activate the edges: encourage cafés, retail or community uses on the streets that face the park; replace blank or parking-lot edges where possible.
  • Diversify what people can do in the park (playground, washroom, water, shade, performance, sport, garden): even small additions raise this score.

Data sources

real Toronto data
  • City of Toronto Open Data: Parks (Green Space)
    Polygon boundaries, official names, types. Boundaries are reconciled against OpenStreetMap (ODbL) for new and updated parks.
  • Parks & Recreation Facilities
    Inventory of in-park amenities (washrooms, fields, rinks…).
  • Toronto Pedestrian Network
    Sidewalk segments around and through parks; estimated park entrances.
  • Toronto Centreline V2
    Street segments + intersection nodes near park edges; trails and walkways.
  • Toronto 3D Massing
    Building footprints + heights for edge-building counts, frontage density, and tower-in-the-park risk.
  • Toronto Treed Area
    Tree canopy share inside park polygons via stratified-grid sampling.
  • Toronto Waterbodies & Rivers
    Water surface inside parks + nearest-water distance for cooling.
  • Ravine & Natural Feature Protection
    Ravine overlap as a cooling / natural-comfort signal.
  • Toronto Street Tree Inventory
    Tree count + density inside park polygons.
  • Neighbourhood Profiles
    (Pending) Equity context proxy.
  • OpenStreetMap (Overpass API)
    Cafés, restaurants, retail, transit stops, parking, highways, rail.