Zoning, parcels, assessments, and transactions — drawn from the public data services of the authorities that maintain them, rendered on a single map.
Real estate is the largest industry in Canada, but one of the least transparent. Much of the data is public, but difficult to coordinate. It is maintained by hundreds of separate authorities, in different formats, across different systems.
Treadwell brings these fragments into a single, structured view so decision makers are more likely to have the context needed to make informed decisions.
An interactive map interface for querying Canadian property at the parcel level. Click any parcel and a panel reveals its identifiers, boundary geometry, zoning designation, assessment values, and transaction record alongside spatial context — floodplains, setbacks, adjacent holdings, and the administrative layers that apply.
Search by address, PID, or roll number. Select multiple parcels to compare or export. Pan across provincial boundaries without changing tools — the terminal adapts to each jurisdiction's data structure and renders a consistent view.
Nine provinces and territories publish province-wide parcel data. In the remaining provinces, coverage is built jurisdiction by jurisdiction as cities and counties publish through standard geospatial services.
Each layer originates with the authority responsible for that data: zoning from the municipality, parcels from the provincial land survey, assessments from the assessment agency. The terminal surfaces what these authorities already publish — it does not generate new records or amend existing ones.
Treadwell operates under the open-data licences that each source publishes. Attribution is preserved, authority is acknowledged, and the original service remains the record of truth. For legal, transactional, or authoritative use, consult the source directly.
Treadwell is an independent platform. It is not affiliated with, endorsed by, or operated on behalf of any government authority, municipality, assessment agency, or land registry. Information is presented for general reference and situational awareness, and is not a substitute for official records. Data may be cached, reprojected, or otherwise processed for display; the originating authority remains the authoritative record for legal, transactional, or regulatory purposes. Treadwell makes no warranty as to the accuracy, completeness, or currency of the information shown and accepts no liability for decisions made in reliance on it.