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Official publishers · methods labeled

Global Property Metrics

Methodology

GPM publishes only official-source observations. This page explains how releases become stable datasets and why national, city, municipal and local scopes remain distinct.

Published countries
70
Official datasets
28
Normalized observations
688,860

Pipeline

From official release to published page

The same approved release serves the interface and documented data responses, so public values and source context stay aligned.

  1. 01

    Identify

    Each series starts with a named public-sector publisher, a documented dataset, geographic scope and reuse terms.

  2. 02

    Review

    GPM reviews the published definition, period, unit, property coverage and update cadence before a dataset is eligible for publication.

  3. 03

    Normalization

    Geographies, periods and units are mapped into stable public fields while source-specific index bases, currencies and scope remain visible.

  4. 04

    Validation

    Publication checks cover completeness, internal consistency, freshness and geographic fit. A failed check does not silently replace the current release.

  5. 05

    Publication

    One approved release serves pages and documented data responses so source, coverage, units and observation values stay aligned.

Publication

Public publication safeguards

GPM explains what readers can verify without exposing internal collection, parsing or operational controls.

  • Official publisher

    Every published dataset identifies the responsible statistical office, central bank, land registry or other public-sector publisher.

  • Defined coverage

    National, city, municipal and local records remain separate and retain the publisher’s stated property and geographic scope.

  • Comparable fields

    Periods, units and geography names are normalized, but source-specific currencies, bases and methodological qualifications are preserved.

  • Freshness shown

    Pages disclose the newest available source period and the date of the GPM release; these dates are not presented as the same thing.

  • Derived values labeled

    Calculations such as gross yield or rebased comparisons are identified as derived and retain their inputs and limitations.

  • No silent replacement

    A candidate update must pass publication checks before it replaces the current public release.

Interpretation rules

  • Index levels show movement from a stated base, not a currency price.
  • Mortgage rates are percentages per annum; changes are reported in percentage points.
  • Mortgage-rate populations and fixation terms are source-specific, so each page labels its exact loan scope.
  • City and municipal observations are never presented as national coverage.
  • Transaction averages and medians can move with the mix of homes sold.
  • Derived gross yields are labeled and do not include costs, vacancy, tax or financing.
  • Modeled rents retain model-quality fields and are not recorded lease values.

Provenance

Official source disclosure

28 reviewed source entries. Each names the organization, dataset, license, coverage and expected publishing cadence; source freshness still varies.

Access

Pages and APIs share one release

The data guide documents current read-only access, authentication and CSV support. Internal collection interfaces are not part of the public contract.

Official source coverage spans 2015 through 2026-Q3. The newest period differs by dataset and geography · GPM release generated Aug 11, 2026

API examples and downloads