What the snapshot shows
How complete is normalized listing-type classification?
United States — Classification coverage: Classified source rows: 8,777,887 / 8,779,502 Active source rows (Normalized classification coverage: 100%); Rows outside the seven normalized types: 1,615. Country cohorts use each source's dominant market, so a source total can include rows outside that country.
Separates normalized type-bucket rows from the dominant-market cohort's active source-row total and reports the unclassified remainder instead of assuming the seven buckets equal all rows.
- Normalized classification coverage
- 100%
- Classified source rows
- 8,777,887
- Rows outside the seven normalized types
- 1,615
| Normalized listing type | Active source rows | Share of represented source rows |
|---|---|---|
| Apartments for rent | 1,070,049 | 12.2% |
| Apartments for sale | 6,996,722 | 79.7% |
| Houses for rent | 82,885 | 0.9% |
| Houses for sale | 338,770 | 3.9% |
| Land for sale | 69,388 | 0.8% |
| Commercial property for rent | 6,279 | 0.1% |
| Commercial property for sale | 213,794 | 2.4% |
Evidence threshold
At least 1,000 active rows, at least 80% classification coverage, and 3 normalized types with at least 100 rows each. Every snapshot required by this study must be dated no later than the evaluation date and be no more than 90 days old.
Method
An active source row is an advertisement record represented in Landomo at the capture time. A represented source entry is one generated portal key; entries are not consolidated into unique publishers. A source entry is assigned to a country cohort by its dominant market, so its total is not a country-filtered national count. A row is not a unique property or a completed transaction.
Limitations
- The same property may occur on more than one portal, so source rows are not deduplicated homes.
- The snapshots cover sources represented in Landomo; they are not complete national inventories or portal market-share estimates.
- Country cohorts use each source's dominant market, so a source total can include rows outside that country.
- Asking prices are advertisements, not completed transaction prices.
- Portal and city snapshots were captured on different dates and are never added together.
- Generated source entries are portal keys, not deduplicated publishers; aliases or regional entries can belong to the same publisher.
Provenance
- Reviewed
- Portal catalogue snapshot