Street profile · public records

Aitken Cir, Markham: what could be built

82% of the 101 residential lots on Aitken Cir screen as likely to allow a garden suite, 82% a second unit in the house.

Near Unionville, Markham.

residential lots
101
garden suite likely
82%
second unit likely
82%
median lot size
659 m²
active applications
2
200 mN ↑
  • Likely, with constraints
A sample of 80 of 101 lots.

Second units and garden suites

82% of the 101 residential lots on Aitken Cir screen as likely to allow a garden suite; 82% a second unit in the house.

Residential lots by second-units screen
Likely allows additional units00%
Likely, with constraints101100%
Check zoning / further investigation00%
Unlikely00%
  • Garden suite likely: 83 lots (82%).
  • Third unit likely: 83 lots (82%).

Ontario's Planning Act (s. 35.1) and O. Reg. 462/24 allow up to three units on most serviced urban house lots; the municipal by-law sets the rest. Lot depth is estimated from lot lines, not a survey.

Source: Province of Ontario and the municipality, Planning Act s. 35.1, O. Reg. 462/24 and the municipal by-law, screened lot by lot by LSG Realty (2026-11-01); York Region, Regional Official Plan 2022, Map 1 (Urban Area, Towns and Villages) (2026-11-01); Statistics Canada, 2021 Census census subdivisions (cartographic boundary file) (2026-11-01); York Region, Parcel (property boundaries across York Region) (2026-11-01). Screened 2026-11-02.

Flood, Oak Ridges Moraine and Greenbelt

  • Partly or wholly in a conservation authority regulated area (flood and erosion hazards): 18 lots (18%).
  • In the Oak Ridges Moraine countryside, natural core or linkage areas: 0 lots (0%).
  • In the Greenbelt's protected countryside or urban river valleys: 4 lots (4%).

Source: Toronto and Region Conservation Authority, TRCA Regulated Area (Regulation Limit 2025, O. Reg. 41/24) (2026-11-01); Lake Simcoe Region Conservation Authority, Regulation Limit (O. Reg. 41/24) (2026-11-01); Province of Ontario, Oak Ridges Moraine land use designations (2017 Plan) (2026-11-01); Province of Ontario, Greenbelt designations (2017 Plan) (2026-11-01).

Active development applications

2 active applications (rezonings, site plans, subdivisions, minor variances, consents) near Aitken Cir.

  • 9249 Kennedy Road · Site Plan (Minor) · In Progress · Regional review: Approvals, SP/ENG Approval · 2023-03-01 · SPC 20 131031 (York Region file SP.23.M.0045)
  • 9286 Kennedy Road · Zoning By-law Amendment · In Progress · Regional review: Review, Response Provided · 2021-05-19 · PLAN 21 107046 (York Region file ZBA.21.M.0063)

Source: York Region, Active Development Application Boundaries (York Region's review of applications in its nine municipalities) (2026-10-27). Within 150 m of the street's lots.

Building permits, last 12 months

Markham does not publish building permits as open data that we can show.

Upcoming residential projects

1 proposed, approved or under-construction project with about 269 units published.

  • 9332 Kennedy Road (and 2 more addresses) · Proposed: 9-storey, 269-unit mixed-use building

From municipal open data. Not a listing or an offer to sell; details change.

Source: York Region, Planning applications and building permits (residential projects) (2026-10-27). Within 300 m of the street's lots.

Rapid transit within 800 m

No subway, GO, LRT or rapid bus station within 800 m.

Source: TTC, Metrolinx and York Region Transit, Rapid transit stations (the map's transit layer) (2026-10-31).

Everyday needs

Everyday Needs score 66/100 · walking 52 · driving 80 (average over 101 residential lots)

  • 100% of lots within a 10-minute walk of a grocery store
  • 0% of lots within a 10-minute walk of a transit stop

Nearest from the middle of Aitken Cir:

  • Grocery store: 4 min walk (Village Grocer) · 1 min by car
  • Pharmacy: 5 min walk (Guardian) · 1 min by car
  • Transit stop: 25 min walk (Warden Ave at 16Th Ave (TTC))
  • Shopping centre: 35 min walk (CF Markville) · 8 min by car
  • Emergency department: over 60 min walk · 21 min by car (Markham Stouffville Hospital)
  • Hospital: over 60 min walk · 22 min by car (Oak Valley Health - Markham)

Source: LSG Realty, Everyday Needs score (LSG's own travel-time estimate) (2026-11-02); © OpenStreetMap contributors, ODbL, OpenStreetMap (Geofabrik Ontario extract): roads, footpaths, supermarkets and grocery stores, pharmacies, shopping centres and department stores, hospitals and emergency departments — Open Database Licence (ODbL) 1.0 (2026-11-02); Ontario Ministry of Health, Ministry of Health Service Provider Locations (MOHSERLO): hospital sites — Open Government Licence – Ontario (2026-11-02); City of Toronto (TTC), Merged GTFS – TTC Routes and Schedules (stops) — Open Government Licence – Toronto (2026-11-02); Metrolinx (GO Transit), GO Transit GTFS (stops) — Metrolinx Open Data Licence (2026-11-02); Metrolinx (UP Express), UP Express GTFS (stops) — Metrolinx Open Data Licence (2026-11-02). LSG estimate from open data: walking on mapped streets and paths at 4.8 km/h; driving at typical weekday rush-hour road speeds (not live traffic). Times are for the 200 m square around each address. Places can open, close or move; check before you rely on one. Places and paths © OpenStreetMap contributors, ODbL.

Public schools

  • Beckett Farm Public School · Elementary · York Region DSB · 700 m
  • St Matthew Catholic Elementary School · Elementary · York CDSB · 700 m
  • William Berczy Public School · Elementary · York Region DSB · 790 m

Source: Ontario Ministry of Education, Ontario public school contact information (placed by Statistics Canada ODA addresses) (2026-10-29). School catchments change; confirm with the board's school locator.

Water and sewer servicing

Regional capacity assigned; local figure not published · Markham (urban area)

Served by the York Durham Sewage System. York Region assigned about 88,348 persons of new capacity to the cities and towns on the York Durham Sewage System (Dec 11, 2025), bringing total available capacity to 286,992 persons, up to 13 years of growth. The City's own remaining allocation: Not published in the reports we could read. Report.

Source: Province of Ontario (Land Information Ontario), Municipal Boundary – Lower and Single Tier (2026-11-01); York Region, Regional Official Plan 2022, Map 1 – Regional Structure: Urban Area (2026-11-01); York Region, Regional Official Plan 2022, Map 1 – Regional Structure: Towns and Villages (2026-11-01). York Regional Council highlights, Dec 11, 2025: 2025 Servicing Capacity Assignment (2025-12-11).

Public records; not a zoning opinion. Confirm with the municipality before you buy, build or apply.

Residential lots: lot outlines from municipal and regional open data, without condominium parcels and lots in non-residential or open-space zones. Lots are matched to streets by their address points (Statistics Canada, Open Database of Addresses). Figures built 2026-11-02 from municipal, regional, provincial and federal open data on LSG Realty's own servers. No MLS® data, listings or prices are used.

Source: Statistics Canada, Open Database of Addresses (lots matched to streets by their address points) (2021-04-29).

LSG Realty Inc., Brokerage