{"schema_version":"1.0","attribution":"Landomo","generated_at":"2026-09-05T03:04:58.453Z","catalog_reviewed_at":"2026-08-21","scope":"country","scope_country":"jp","content_status":"evidence-qualified","human_indexability":"index, follow","content_language":"en-JP","canonical_feed_url":"https://jp.landomo.com/research-feed.json","human_url":"https://jp.landomo.com/research/jp","country_count":1,"study_count":6,"methodology":{"unit_of_observation":"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.","country_assignment":"Country cohorts use each source's dominant market, so a source total can include rows outside that country.","city_scope":"The city catalogue filters active rows to the country and then groups them by the market's city or municipality field. Catalogue admission and selection of up to 60 cities use full active-row totals; the research tables rank cities and apply their 5,000-row study gate using sums across only the seven normalized listing-type buckets. Markets normally need at least 5,000 full rows and three clean places; cities normally need at least 300 full rows. A city in a reviewed Search Console demand cohort in Bosnia can enter with at least 20 full rows. This is a selected city sample, not national inventory.","price_interpretation":"Asking prices are advertisements, not completed transaction prices.","price_medians_published":false,"publication_gate":"The route is published so the framework and evidence status remain visible. It is excluded from indexing until refreshed evidence meets the thresholds stated below."},"countries":[{"country_code":"jp","country_name":"Japan","in_language":"en-JP","canonical_hub_url":"https://jp.landomo.com/research/jp","portal_snapshot_at":"2026-08-01T20:16:48.268Z","geo_snapshot_at":null,"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."],"evidence":{"represented_source_count":2,"active_source_rows":58967,"classified_source_rows":58967,"unclassified_source_rows":0,"classification_rate":1,"normalized_type_count":5,"type_counts":{"apartments-for-rent":56753,"apartments-for-sale":1000,"houses-for-rent":784,"houses-for-sale":318,"land-for-sale":112,"commercial-for-rent":0,"commercial-for-sale":0},"rental_rows":57537,"sale_rows":1430,"apartment_rows":57753,"house_rows":1102,"land_rows":112,"commercial_rows":0,"largest_source_share":0.966879780216053,"concentration_hhi":0.93595345834918,"effective_source_count":1.0684291949343125,"sampled_city_count":0,"sampled_city_source_row_bucket_sum":0,"diverse_sampled_city_count":0,"represented_sources":[{"source_id":"chintai-jp","source_name":"Chintai","source_domain":"chintai.net","active_source_rows":57014,"classified_source_rows":57014,"type_counts":{"apartments-for-rent":56251,"apartments-for-sale":0,"houses-for-rent":763,"houses-for-sale":0,"land-for-sale":0,"commercial-for-rent":0,"commercial-for-sale":0}},{"source_id":"suumo-jp","source_name":"SUUMO","source_domain":"suumo.jp","active_source_rows":1953,"classified_source_rows":1953,"type_counts":{"apartments-for-rent":502,"apartments-for-sale":1000,"houses-for-rent":21,"houses-for-sale":318,"land-for-sale":112,"commercial-for-rent":0,"commercial-for-sale":0}}],"sampled_cities":[]},"studies":[{"id":"jp:source-coverage","topic":"source-coverage","title":"Japan property-source coverage","question":"How broad is the represented source coverage?","answer_summary":"Japan — Source coverage: Represented source: Chintai — 57,014 / 58,967 Active source rows (Share of represented source rows: 96.7%); Represented source entries: 2. Country cohorts use each source's dominant market, so a source total can include rows outside that country.","interpretation_note":"Compares represented source entries and their source-row counts without presenting them as unique properties, complete portal inventories, unique publishers, or market share.","evidence_threshold":"At least 2 represented source entries, each with at least 500 rows, and 5,000 active source rows in total. Every snapshot required by this study must be dated no later than the evaluation date and be no more than 90 days old.","canonical_url":"https://jp.landomo.com/research/jp/source-coverage","indexability":"index, follow","required_snapshot_dates":["2026-08-01T20:16:48.268Z"],"required_snapshot_kinds":["portal"],"qualification":{"evidence_gate_passed":true,"freshness_gate_passed":true}},{"id":"jp:listing-type-mix","topic":"listing-type-mix","title":"Japan listing-type mix","question":"Which property and transaction categories dominate the snapshot?","answer_summary":"Japan — Listing-type mix: Normalized listing type: Apartments for rent — 56,753 / 58,967 Classified source rows (Share of classified source rows: 96.2%). Country cohorts use each source's dominant market, so a source total can include rows outside that country.","interpretation_note":"Groups source rows into the catalogue's seven stable listing types and reports their share of classified rows.","evidence_threshold":"At least 5,000 classified source rows, at least 90% classification coverage, and 4 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.","canonical_url":"https://jp.landomo.com/research/jp/listing-type-mix","indexability":"index, follow","required_snapshot_dates":["2026-08-01T20:16:48.268Z"],"required_snapshot_kinds":["portal"],"qualification":{"evidence_gate_passed":true,"freshness_gate_passed":true}},{"id":"jp:rent-versus-sale","topic":"rent-versus-sale","title":"Japan represented rental and sale listing mix","question":"Does the represented snapshot lean toward rentals or sales?","answer_summary":"Japan — Rent versus sale: Rental source rows: 57,537 (Share of represented source rows: 97.6%); For-sale source rows: 1,430 (Share of represented source rows: 2.4%); Active source rows: 58,967. Country cohorts use each source's dominant market, so a source total can include rows outside that country.","interpretation_note":"Adds the relevant classified source-row buckets within one portal snapshot; it does not estimate national housing stock or demand.","evidence_threshold":"At least 5,000 classified source rows, at least 90% classification coverage, and at least 500 rental and 500 for-sale rows. Every snapshot required by this study must be dated no later than the evaluation date and be no more than 90 days old.","canonical_url":"https://jp.landomo.com/research/jp/rent-versus-sale","indexability":"index, follow","required_snapshot_dates":["2026-08-01T20:16:48.268Z"],"required_snapshot_kinds":["portal"],"qualification":{"evidence_gate_passed":true,"freshness_gate_passed":true}},{"id":"jp:apartments-versus-houses","topic":"apartments-versus-houses","title":"Japan represented apartment and house listing mix","question":"Are apartments or houses more prominent in the represented sources?","answer_summary":"Japan — Apartments versus houses: Apartment source rows: 57,753 (Share of represented source rows: 97.9%); House source rows: 1,102 (Share of represented source rows: 1.9%); Active source rows: 58,967. Country cohorts use each source's dominant market, so a source total can include rows outside that country.","interpretation_note":"Compares apartment and house advertisement rows across rent and sale while excluding land and commercial categories.","evidence_threshold":"At least 90% classification coverage, 5,000 residential rows, 500 apartment rows, and 500 house rows. Every snapshot required by this study must be dated no later than the evaluation date and be no more than 90 days old.","canonical_url":"https://jp.landomo.com/research/jp/apartments-versus-houses","indexability":"index, follow","required_snapshot_dates":["2026-08-01T20:16:48.268Z"],"required_snapshot_kinds":["portal"],"qualification":{"evidence_gate_passed":true,"freshness_gate_passed":true}},{"id":"jp:source-concentration","topic":"source-concentration","title":"Japan represented-source concentration","question":"How concentrated is the represented source-entry snapshot?","answer_summary":"Japan — Source concentration: Represented source: Chintai — 57,014 / 58,967 Active source rows; Largest represented source share: 96.7%; Source-entry concentration (HHI, 0–1 scale): 0.936. Country cohorts use each source's dominant market, so a source total can include rows outside that country.","interpretation_note":"Reports the largest represented source entry's share, HHI on a 0–1 scale, and effective source-entry count. These describe Landomo's generated portal-key snapshot, not unique publishers or national portal market share.","evidence_threshold":"At least 2 represented source entries, each with at least 500 rows, and 5,000 active source rows in total. Every snapshot required by this study must be dated no later than the evaluation date and be no more than 90 days old.","canonical_url":"https://jp.landomo.com/research/jp/source-concentration","indexability":"index, follow","required_snapshot_dates":["2026-08-01T20:16:48.268Z"],"required_snapshot_kinds":["portal"],"qualification":{"evidence_gate_passed":true,"freshness_gate_passed":true}},{"id":"jp:classification-coverage","topic":"classification-coverage","title":"Japan listing classification coverage","question":"How complete is normalized listing-type classification?","answer_summary":"Japan — Classification coverage: Classified source rows: 58,967 / 58,967 Active source rows (Normalized classification coverage: 100%); Rows outside the seven normalized types: 0. Country cohorts use each source's dominant market, so a source total can include rows outside that country.","interpretation_note":"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.","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.","canonical_url":"https://jp.landomo.com/research/jp/classification-coverage","indexability":"index, follow","required_snapshot_dates":["2026-08-01T20:16:48.268Z"],"required_snapshot_kinds":["portal"],"qualification":{"evidence_gate_passed":true,"freshness_gate_passed":true}}]}]}