How is this different from the Community Explorer page?

Community Explorer is a narrative page with 15 core communities and deep data (school districts, demographics, prices), but no interactive map. This page is an interactive map with three tiers and subdivision names, but no school/price data. The two complement each other.

交互式地图 · 双层叠加Interactive Map · Dual Tier

GTA 社区与小区地图GTA Community & Subdivision Map

Q: Why does the subdivision label density change with zoom?

Rendering all 470 labels at once would be unreadable, so the map auto-declutters by pixel distance: zoom 11 shows the ~15 most spaced-out, zoom 12 ~30, zoom 13 ~50, zoom 14+ all of them. Priority: suburb > neighbourhood > quarter.

Q: Is using TRREB community boundary data here legal?

Yes. TRREB publicly serves the community map tile API via torontomls.net/BingCommunitiesMap for member realtors to embed on their own sites — no MLS login required. Only community boundary tiles are displayed, not listing data, so no IDX rules apply.

底层：TRREB 官方社区边界（Area / Municipality / Community 三层切换）。叠加层：470+ OSM subdivision 名（密度随 zoom 自适应）—— 比如在 Aurora 的 Bayview Wellington community 内部，你能直接看到 Beacon Hall、Bayview Meadows、Bayview Greens 这些 subdivision 名字。 Base layer: TRREB official community boundaries (Area / Municipality / Community — switchable). Overlay: 470+ OSM subdivision names (density adapts to zoom). Inside Aurora’s Bayview Wellington TRREB community, you’ll see subdivisions like Beacon Hall, Bayview Meadows, Bayview Greens.

两个颗粒度 · 一张图Two granularities · One map

TRREB Community 是 MLS 系统挂牌时填的官方社区名（粗颗粒度，全 GTA 约 745 个）。OSM Subdivision 是 OpenStreetMap 上的开发商小区名（细颗粒度，比 TRREB community 还要细一层，York + Toronto 北部 470 个）。两者关系是嵌套：一个 TRREB community（例如 Aurora 的 Bayview Wellington）通常包含多个 OSM subdivision（Beacon Hall、Bayview Meadows、Bayview Greens 等）。 A TRREB Community is the official community name on MLS listings (~745 across GTA, coarser). An OSM Subdivision is OpenStreetMap’s builder-defined area name (470 across York + N-Toronto, finer — one TRREB community can contain several OSM subdivisions). For example: Aurora’s Bayview Wellington (TRREB) contains Beacon Hall, Bayview Meadows, Bayview Greens (OSM).

底图分区数据 © TRREB 公开 Bing Communities Map 服务；subdivision 坐标 © OpenStreetMap (ODbL)，抓取 2026-05-13；底图 © CARTO。 Boundary data © TRREB public Bing Communities Map service; subdivision points © OpenStreetMap (ODbL), fetched 2026-05-13; base tiles © CARTO.

跳转城市Jump to City

视图层级View Layer

大区Area 市/镇Municipality 社区Community

显示 subdivision 名Show subdivision names

密度随 zoom 自适应Density adapts to zoom

提示：默认显示 TRREB Community polygon 边界 + 名字 + OSM subdivision 标签。放大看更多 subdivision，缩小看大区。右上角面板切换层级或搜索城市跳转。 Default view: TRREB Community polygon boundaries + names + OSM subdivision labels. Zoom in for more subdivisions, zoom out for larger areas. Use the top-right panel to switch tiers or jump to a city.

怎么读这张图How to read this map

底层是 TRREB 三个层级（Area / Municipality / Community），叠加层是 OSM subdivision 名。两层独立切换。 Base layer: TRREB tiers (Area / Municipality / Community). Overlay: OSM subdivisions. Independently toggleable.

TRREB · LAYER 1

大区 · AreaArea

TRREB 把 GTA 分成 67 个 area code（W01–W14、C01–C15、E01–E18、N01–N20），按 MLS 编号。 TRREB divides GTA into 67 area codes (W01–W14, C01–C15, E01–E18, N01–N20), the MLS standard.

W01 Mimico · N09 Aurora · N16 Stouffville · E18 Pickering

TRREB · LAYER 2

市/镇 · MunicipalityMunicipality

城市/镇级别，对应行政划分。GTA 共 15 个主要 municipality。 City / town-level boundaries — 15 major municipalities across the GTA.

Aurora · Markham · Richmond Hill · Vaughan · Toronto · Mississauga

DEFAULT

TRREB · LAYER 3

社区 · CommunityCommunity

每个 municipality 内部的官方社区。Aurora 分 ~11 个，全 GTA 共 745 个。MLS 挂牌时填的就是这一层。 Official community subdivisions within each municipality. Aurora has ~11; 745 across GTA. This is the layer used on MLS listings.

Bayview Wellington · Rural Aurora · Hills of St Andrew · Stonehaven-Wyndham

OSM · OVERLAY (DENSITY ADAPTS)

Subdivision · 开发商小区Subdivision · Builder-named area

比 TRREB community 还细一层——开发商分期开发时切出来的”小区”，房子建造年份、户型、style 往往一致。Aurora 的 Bayview Wellington community 内部就细分为 Beacon Hall（90 年代 estate）、Bayview Meadows（2000 年代独立屋）、Bayview Greens 等。任何 zoom 都显示，密度自适应。 A tier finer than TRREB community — builder-defined clusters with consistent home era and style. Inside Aurora’s Bayview Wellington TRREB community, you’ll find Beacon Hall (90s estate), Bayview Meadows (2000s detached), Bayview Greens, etc. Shown at every zoom — density auto-adapts.

Beacon Hall · Bayview Meadows · Bayview Greens · College Manor · Glenway · Belfontain · Aurora Grove · Highland Gate

常见问题 · FAQFAQ

Q1 · TRREB Community 跟 OSM Subdivision 到底什么关系？Q1 · How are TRREB Community and OSM Subdivision related?

嵌套关系。TRREB community 是 MLS 系统挂牌时填的官方社区名（粗颗粒度，全 GTA 约 745 个，Aurora ~11 个）。OSM subdivision 是更细的开发商命名（York + Toronto 北部 470 个，Aurora ~40 个）。一个 TRREB community 通常包含多个 OSM subdivision——例如 Aurora 的 Bayview Wellington community 内部就有 Beacon Hall、Bayview Meadows、Bayview Greens、Aurora Grove 等 subdivision。 Nested. A TRREB community is the official name on MLS listings (~745 across GTA, ~11 in Aurora). An OSM subdivision is the finer builder-defined area (470 across York + N-Toronto, ~40 in Aurora). One TRREB community typically contains several OSM subdivisions — e.g., Aurora’s Bayview Wellington contains Beacon Hall, Bayview Meadows, Bayview Greens, Aurora Grove, etc.

Q2 · 为什么 subdivision 名密度按 zoom 变化？Q2 · Why does the subdivision label density change with zoom?

470 个标签同时显示会糊成一团，所以做了自动去重：每个 zoom level 按像素距离阈值过滤，zoom 11 只显示最 spaced-out 的 ~15 个、zoom 12 ~30 个、zoom 13 ~50 个、zoom 14+ 全部展开。优先级：suburb（大区）> neighbourhood（小区）> quarter（街区）。右上角 toggle 可整层关闭。 Rendering 470 labels at once would be unreadable, so we auto-declutter by pixel distance: zoom 11 shows the ~15 most spaced-out, zoom 12 ~30, zoom 13 ~50, zoom 14+ all of them. Priority: suburb > neighbourhood > quarter. The top-right toggle disables the layer entirely if needed.

Q3 · TRREB 这个数据合法用吗？Q3 · Is using TRREB data here legal?

合法。TRREB 通过 torontomls.net/BingCommunitiesMap 公开提供这套 community map tile 服务给经纪人在自家网站嵌入用，**不需要 MLS 登录**。Arthur 持有 TRREB 会员身份（Bay Street Group, Broker），按 TRREB 数据使用政策可以在执业相关的内容上展示。这里展示的只是 community 边界本身，不包含 listing 数据，所以不涉及 IDX 规则。 Yes. TRREB publicly serves this community map tile API via torontomls.net/BingCommunitiesMap for member realtors to embed on their own sites — no MLS login required. Arthur is a TRREB member (Bay Street Group, Broker). Only community boundary tiles are displayed here, not listing data — no IDX rules apply.

Q4 · 这跟 Community Explorer 有什么不同？Q4 · How is this different from the Community Explorer?

Community Explorer (12341) 是叙述性页面——15 个核心 community 配学区/人口/房价深度分析，不带交互地图。本页是交互式地图——能拖能放大、能切换三层粒度、能看 subdivision 名字，但不带学区/价格数据。两者互补：用本页定位”这套房在哪个 community”，用 12341 看那个 community 的深度数据。 Community Explorer (12341) is a narrative page — 15 core communities with school district, demographics, and price analysis, no interactive map. This page is an interactive map — pan/zoom, switch tiers, see subdivision names, but no school/price data. They complement: use this map to locate “which community is this house in?”, use Community Explorer for that community’s deep data.