The method · version 4.1 · published Aug 2026
How the numbers are made
Every figure on Tidewater traces to a government record or a licensed feed — nothing here is a number we invented about your home.
- Assessmentscome from PVSC — the Property Valuation Services Corporation’s public roll — with up to 21 years of history where the record holds it.
- Sales come from the provincial land registry: every recorded transaction, public and ungated.
- Listings come from the NSAR MLS® feed, displayed under licence to registered users where the licence requires it.
- The market index pairs repeat sales of the same parcel — no appraisal model, no hedonic guesswork, and no consumer valuation anywhere on the site. Aggregate market figures are never a per-home price.
Where each record comes from, and how current ours is
We read only official publishers — the assessment authority, the land registry, the Province, the municipality, the federal agencies, and the licensed MLS® feed — and we map their records as they publish them. Accuracy is the publisher’s; keeping our copy current is ours. This is the list.
- NSAR MLS® feed (VOW) — Nova Scotia Association of REALTORS® — VOW data licence (Bridge Interactive feed). Published continuously; we refresh every 10 minutes (bridge-sync).
- PVSC assessed & taxable value history — Property Valuation Services Corporation (PVSC). Published once a year; we refresh nightly staleness check against the publisher's timestamp (the roll lands each January) — our copy last refreshed June 3, 2026.
- PVSC residential dwelling characteristics — Property Valuation Services Corporation (PVSC). Published once a year; we refresh nightly staleness check (January roll) — our copy last refreshed June 3, 2026.
- PVSC parcel sales history — Property Valuation Services Corporation (PVSC). Published monthly; we refresh nightly staleness check (the publisher posts the prior month in the first week) — our copy last refreshed August 8, 2026.
- PVSC commercial building characteristics — Property Valuation Services Corporation (PVSC). Published once a year; we refresh nightly staleness check (January roll) — our copy last refreshed August 30, 2026.
- PVSC parcel land sizes — Property Valuation Services Corporation (PVSC). Published once a year; we refresh nightly staleness check (January roll) — our copy last refreshed August 30, 2026.
- Active condominium corporations (the strata registry) — Service Nova Scotia — Land Programs. Published twice a year; we refresh nightly staleness check (the publisher posts in May and November) — our copy last refreshed August 30, 2026.
- Nova Scotia Property Records Database — parcel boundaries — Province of Nova Scotia — GeoNOVA / Nova Scotia Geomatics Centre. Published continuously; we refresh weekly incremental by the registry's own UPDAT_DATE, plus a rolling full reconcile — our copy last refreshed August 31, 2026.
- Nova Scotia Topographic Database — water features — Province of Nova Scotia — GeoNOVA / Nova Scotia Geomatics Centre. Published once a year; we refresh annual backfill (last 2026-08-30) — our copy last refreshed August 29, 2026.
- Nova Scotia Civic Address File — roads and communities — Province of Nova Scotia — GeoNOVA / Nova Scotia Geomatics Centre. Published monthly; we refresh compiled into the streetline and community layers.
- High Resolution Digital Elevation Model (contours) — Natural Resources Canada. Published as a fixed release; we refresh fetched on demand per sheet, cached 30 days.
- Census of Population 2021 — Statistics Canada. Published as a fixed release; we refresh one-time (apportioned to community boundaries).
- Relative risk of arsenic in bedrock water wells — Province of Nova Scotia — GeoNOVA / Nova Scotia Geomatics Centre. Published as a fixed release; we refresh one-time load (scripts/water/backfill-ns-arsenic.mjs); re-checked if GeoNOVA republishes.
- Flood risk mapping (Flood Damage Reduction Program) — Province of Nova Scotia — GeoNOVA / Nova Scotia Geomatics Centre. Published as a fixed release; we refresh one-time load (scripts/water/backfill-ns-flood.mjs); re-checked if GeoNOVA republishes.
- Municipal Deed Transfer Tax rates — Service Nova Scotia — Land Programs. Published once a year; we refresh verbatim transcription re-checked with the February tax-rates run (DL-60 W1a).
- Land Registry fees — Service Nova Scotia — Land Programs. Published once a year; we refresh verbatim transcription re-checked with the February tax-rates run (D22 §15, X-1).
- Municipal property tax rates — Province of Nova Scotia — Open Data. Published once a year; we refresh annual script (February).
Ratified for ingest, not yet live: HRM building permits · HRM civic addresses · HRM zoning boundaries · Registered heritage properties (province) · Designated flood risk areas · Relative risk of arsenic in bedrock wells; surficial aquifers. Each will appear here with its publisher and refresh date the day it lands.
Fee disclosure
Representation is the only thing we are ever paid for — and it is disclosed in writing, before any agreement. Nothing on this site is paid placement; no listing, agent, or service paid to appear, and we never sell your information or your enquiry.
The no-call promise
Registration never triggers a phone call. If you save a home we message only when something specific to it actually changes — and you decide if and when we ever talk.