{"article":{"annotation":{"article_id":"norway-revised-housing-wealth-model-results-2015-2024","available_at":"2026-10-16T10:37:23.320563Z","geography_revision":"ef6ee0010dda5fe7b240fd514749b43e214c57da73222d2e40ec83b276dd0977","id":"42caedbdb1dd986e38aaabf1b5d1aa0df2e0fdca52cbacbcab6cb94e75c1ca0b","input_sha256":"1931c8ca513b6a8ba3a33e7be0d567205f534703c826db82b4e3bc03d1d489bb","limitations":["Rule-derived subjects are candidates, not verified editorial labels or calibrated model probabilities.","Coverage is distinct from event location. Unknown country/city/coordinates remain absent; no automatic geocoding.","Article geometries keep their stated precision and methodology; reproducing them is not independent coordinate verification."],"method":"controlled-rules-v1","places":[{"admin1":null,"city":null,"coordinate_note":null,"coordinate_reference_system":"OGC:CRS84","coordinate_source":null,"country":"NO","evidence":[{"field":"country","language":"en","note":"Explicit preserved editorial country/region; no city or national centroid inferred","source_urls":["https://www.ssb.no/priser-og-prisindekser/boligpriser-og-boligprisindekser/artikler/revidert-modell-for-beregning-av-boligformue-resultater-fra-modellkjoring-2015-2024/_/attachment/inline/de88a037-954f-449b-b8cc-525d7229d1f9%3A2957029d73f42108832efb0accbbec8044c9494b/NOT2026-37.pdf"]}],"geometry":null,"id":"iso3166-1:NO","kind":"country-or-area","labels":{"ar":"النرويج","en":"Norway","es":"Noruega","fr":"Norvège"},"match_status":"candidate","precision":"regional","role":"coverage","uncertainty_m":null}],"rules_sha256":"fb5ad3c27c91cb840f7a0a05f7f64a5cb26ad0374409ff9457f277c7092e22b4","schema_version":1,"subjects":[{"concept_id":"medtop:20000344","confidence":null,"confidence_method":null,"evidence":[{"field":"category+topics","language":"en","note":"Preserved editorial category/topic; broad candidate only","source_urls":["https://www.ssb.no/priser-og-prisindekser/boligpriser-og-boligprisindekser/artikler/revidert-modell-for-beregning-av-boligformue-resultater-fra-modellkjoring-2015-2024/_/attachment/inline/de88a037-954f-449b-b8cc-525d7229d1f9%3A2957029d73f42108832efb0accbbec8044c9494b/NOT2026-37.pdf"]}],"method":"controlled-rules-v1","rule_id":"economy-broad","status":"candidate"}],"taxonomy_revision":"1f2db31d811fca07e99b16d402c10e2cc2965c9df1c7b41d9be348b40a24e7fb","taxonomy_version":"IPTC Media Topics 2026-Q2"},"api_url":"https://newsverum.com/api/v1/articles/norway-revised-housing-wealth-model-results-2015-2024?lang=en","category":"economy","content":{"key_points":[],"paragraphs":["A report published by Statistics Norway (SSB) on 15 October details results and methodological changes in a housing-wealth model based on home sales from 2015 to 2024 and used for 2026 tax-card values. After filtering, 881,472 sales entered the model. The country’s 14,101 basic statistical units in 2024 were grouped into 1,272 calculation areas by housing type.","The revised approach groups smaller basic statistical units rather than relying on municipality borders. A decision-tree algorithm combines areas with similar price patterns, followed by a separate hedonic regression for each area and housing type. In 10-fold cross-validation, mean absolute percentage error was 12.53% for all homes, 18.04% for detached houses and 10.18% for apartments. An estimated 83.07% of values fell within 20% of observed sale prices. These results do not guarantee an individual valuation and depend on the model’s sample and filters."],"sections":[]},"corrections":[],"country":"NO","data":{"blocks":[{"columns":[{"key":"indicator","label":{"ar":"المؤشر","de":"Indikator","en":"Indicator","es":"Indicador","fr":"Indicateur","pt":"Indicador","tr":"Gösterge"},"language":"en","type":"text"},{"key":"value","label":{"ar":"القيمة","de":"Wert","en":"Value","es":"Valor","fr":"Valeur","pt":"Valor","tr":"Değer"},"type":"number","unit":"count"}],"description":{"ar":"نطاق بيانات نموذج الثروة السكنية؛ عينة المبيعات من يناير 2015 إلى نوفمبر 2024.","de":"Umfang der Datenbasis des Wohnvermögensmodells; Verkäufe Januar 2015 bis November 2024.","en":"Coverage of the housing-wealth model; sales sample January 2015–November 2024.","es":"Cobertura del modelo de patrimonio inmobiliario; ventas de enero de 2015 a noviembre de 2024.","fr":"Couverture du modèle de patrimoine immobilier ; ventes de janvier 2015 à novembre 2024.","pt":"Abrangência dos dados do modelo de riqueza habitacional; vendas de janeiro de 2015 a novembro de 2024.","tr":"Konut serveti modeli veri kapsamı ve bölge sayıları; satış örneklemi Ocak 2015–Kasım 2024."},"id":"housing-model-sample-and-areas","methodology":{"ar":"نُقلت الأعداد من جداول تقرير إس إس بي بشأن عينة النموذج وعدد الوحدات الأساسية في 2024؛ وليست تقديرات.","de":"Die Zahlen stammen aus SSB-Tabellen zur Modellstichprobe und den Grundeinheiten 2024; es handelt sich nicht um Schätzungen.","en":"Counts are transcribed from SSB report tables about the model sample and the 2024 base-unit count; they are not estimates.","es":"Las cifras se transcriben de las tablas de SSB sobre la muestra del modelo y las unidades básicas en 2024; no son estimaciones.","fr":"Les nombres sont repris des tableaux du rapport de SSB sur l’échantillon du modèle et les unités de base en 2024 ; ce ne sont pas des estimations.","pt":"Os números foram transcritos das tabelas da SSB sobre a amostra do modelo e as unidades básicas em 2024; não são estimativas.","tr":"Sayılar SSB raporundaki model örneklemi ve 2024 temel alan sınırıyla ilgili tablolardan aktarılmıştır; tahmin değildir."},"rowTranslations":[{"indicator":{"ar":"عمليات بيع المنازل بعد التصفية","de":"Nach Filterung berücksichtigte Wohnungsverkäufe","en":"Home sales retained after filtering","es":"Ventas de viviendas tras el filtrado","fr":"Ventes de logements après filtrage","pt":"Vendas de habitações após filtragem","tr":"Filtreleme sonrası modele alınan konut satışı"}},{"indicator":{"ar":"الوحدات الإحصائية الأساسية في 2024","de":"Statistische Grundeinheiten 2024","en":"Basic statistical units in 2024","es":"Unidades estadísticas básicas en 2024","fr":"Unités statistiques de base en 2024","pt":"Unidades estatísticas básicas em 2024","tr":"2024'teki temel istatistik alanı"}},{"indicator":{"ar":"مناطق الحساب لجميع أنواع المساكن","de":"Berechnungsgebiete, alle Wohnformen","en":"Calculation areas, all housing types","es":"Áreas de cálculo, todos los tipos de vivienda","fr":"Zones de calcul, tous types de logements","pt":"Áreas de cálculo, todos os tipos de habitação","tr":"Tüm konut tiplerinde hesaplama bölgesi"}},{"indicator":{"ar":"مناطق حساب المنازل المنفصلة","de":"Berechnungsgebiete für Einfamilienhäuser","en":"Detached-house calculation areas","es":"Áreas de cálculo de casas independientes","fr":"Zones de calcul des maisons individuelles","pt":"Áreas de cálculo de moradias isoladas","tr":"Müstakil ev hesaplama bölgesi"}},{"indicator":{"ar":"مناطق حساب المنازل الصغيرة","de":"Berechnungsgebiete für kleinere Häuser","en":"Small-house calculation areas","es":"Áreas de cálculo de casas pequeñas","fr":"Zones de calcul des petites maisons","pt":"Áreas de cálculo de casas pequenas","tr":"Küçük ev hesaplama bölgesi"}},{"indicator":{"ar":"مناطق حساب الشقق","de":"Berechnungsgebiete für Apartments","en":"Apartment calculation areas","es":"Áreas de cálculo de apartamentos","fr":"Zones de calcul des appartements","pt":"Áreas de cálculo de apartamentos","tr":"Daire hesaplama bölgesi"}}],"rows":[{"indicator":"Home sales retained after filtering","value":881472},{"indicator":"Basic statistical units in 2024","value":14101},{"indicator":"Calculation areas, all housing types","value":1272},{"indicator":"Detached-house calculation areas","value":395},{"indicator":"Small-house calculation areas","value":178},{"indicator":"Apartment calculation areas","value":699}],"sourceUrls":["https://www.ssb.no/priser-og-prisindekser/boligpriser-og-boligprisindekser/artikler/revidert-modell-for-beregning-av-boligformue-resultater-fra-modellkjoring-2015-2024/_/attachment/inline/de88a037-954f-449b-b8cc-525d7229d1f9%3A2957029d73f42108832efb0accbbec8044c9494b/NOT2026-37.pdf"],"title":{"ar":"عينة النموذج ومناطق الحساب","de":"Modellstichprobe und Berechnungsgebiete","en":"Model sample and calculation areas","es":"Muestra del modelo y áreas de cálculo","fr":"Échantillon du modèle et zones de calcul","pt":"Amostra do modelo e áreas de cálculo","tr":"Model örneklemi ve hesaplama bölgeleri"},"type":"table","updatedAt":"2026-10-16T10:14:10Z"},{"columns":[{"key":"indicator","label":{"ar":"المؤشر","de":"Indikator","en":"Indicator","es":"Indicador","fr":"Indicateur","pt":"Indicador","tr":"Gösterge"},"language":"en","type":"text"},{"key":"value","label":{"ar":"القيمة","de":"Wert","en":"Value","es":"Valor","fr":"Valeur","pt":"Valor","tr":"Değer"},"type":"number","unit":"%"}],"description":{"ar":"مقاييس أداء التحقق المتقاطع لبيانات معاملات إس إس بي 2015–2024؛ والتعريفات مطابقة للتقرير.","de":"Kreuzvalidierungsmaße für SSB-Transaktionsdaten 2015–2024; Definitionen entsprechen dem Bericht.","en":"Cross-validation performance measures on SSB’s 2015–2024 transaction data; indicator definitions follow the report.","es":"Medidas de validación cruzada sobre transacciones de SSB de 2015–2024; las definiciones siguen el informe.","fr":"Mesures de validation croisée sur les transactions SSB de 2015–2024 ; les définitions suivent le rapport.","pt":"Medidas de validação cruzada sobre transações da SSB de 2015–2024; definições conforme o relatório.","tr":"SSB'nin 2015–2024 işlem verisindeki çapraz doğrulama performans ölçüleri; değişken tanımları rapordaki ölçümlerle aynıdır."},"id":"housing-model-cross-validation","methodology":{"ar":"نُقلت النسب من جدول التحقق المتقاطع بعشر طيات لدى إس إس بي. يقيس MAPE حجم الخطأ؛ وتمثل PM10/20/50 حصة المساكن التي يقع تقديرها ضمن النطاق المئوي المقابل من سعر البيع المرصود.","de":"Die Prozentwerte stammen aus SSBs zehnfacher Kreuzvalidierung. MAPE misst die Fehlergröße; PM10/20/50 geben den Anteil der Wohnungen an, deren Schätzung innerhalb des jeweiligen Prozentbereichs des beobachteten Verkaufspreises liegt.","en":"Percentages are transcribed from SSB’s 10-fold cross-validation table. MAPE measures error magnitude; PM10/20/50 are shares of homes whose estimate falls within the corresponding percentage band of the observed sale price.","es":"Los porcentajes se transcriben de la tabla de validación cruzada de diez particiones de SSB. MAPE mide la magnitud del error; PM10/20/50 son las proporciones de viviendas estimadas dentro del margen porcentual respectivo del precio observado.","fr":"Les pourcentages sont repris du tableau de validation croisée à dix plis de SSB. Le MAPE mesure l’ampleur de l’erreur ; PM10/20/50 indiquent la part des logements dont l’estimation est dans la marge correspondante du prix observé.","pt":"As percentagens foram transcritas da tabela de validação cruzada de dez partições da SSB. MAPE mede a dimensão do erro; PM10/20/50 são as proporções de habitações cuja estimativa fica dentro da margem percentual correspondente do preço observado.","tr":"Yüzdeler, SSB raporundaki 10 katlı çapraz doğrulama tablosundan aynen aktarılmıştır. MAPE hata büyüklüğüdür; PM10/20/50 ise tahminin gözlenen satış fiyatından ilgili yüzde aralığında kaldığı konut payıdır."},"rowTranslations":[{"indicator":{"ar":"متوسط الخطأ المطلق النسبي لجميع المساكن","de":"MAPE, alle Wohnungen","en":"MAPE, all homes","es":"MAPE, todas las viviendas","fr":"MAPE, tous les logements","pt":"MAPE, todas as habitações","tr":"MAPE, tüm konutlar"}},{"indicator":{"ar":"متوسط الخطأ للمنازل المنفصلة","de":"MAPE, Einfamilienhäuser","en":"MAPE, detached houses","es":"MAPE, casas independientes","fr":"MAPE, maisons individuelles","pt":"MAPE, moradias isoladas","tr":"MAPE, müstakil evler"}},{"indicator":{"ar":"متوسط الخطأ للمنازل الصغيرة","de":"MAPE, kleinere Häuser","en":"MAPE, small houses","es":"MAPE, casas pequeñas","fr":"MAPE, petites maisons","pt":"MAPE, casas pequenas","tr":"MAPE, küçük evler"}},{"indicator":{"ar":"متوسط الخطأ للشقق","de":"MAPE, Apartments","en":"MAPE, apartments","es":"MAPE, apartamentos","fr":"MAPE, appartements","pt":"MAPE, apartamentos","tr":"MAPE, daireler"}},{"indicator":{"ar":"وسيط الخطأ المطلق النسبي لجميع المساكن","de":"MdAPE, alle Wohnungen","en":"Median absolute percentage error, all homes","es":"MdAPE, todas las viviendas","fr":"MdAPE, tous les logements","pt":"MdAPE, todas as habitações","tr":"MdAPE, tüm konutlar"}},{"indicator":{"ar":"القيم ضمن 10% من سعر البيع المرصود","de":"Werte innerhalb von 10 Prozent des beobachteten Preises","en":"Values within 10% of observed price","es":"Valores dentro del 10% del precio observado","fr":"Valeurs à moins de 10 % du prix observé","pt":"Valores até 10% do preço observado","tr":"Gözlenen fiyata yüzde 10 yakın tahminler"}},{"indicator":{"ar":"القيم ضمن 20% من سعر البيع المرصود","de":"Werte innerhalb von 20 Prozent des beobachteten Preises","en":"Values within 20% of observed price","es":"Valores dentro del 20% del precio observado","fr":"Valeurs à moins de 20 % du prix observé","pt":"Valores até 20% do preço observado","tr":"Gözlenen fiyata yüzde 20 yakın tahminler"}},{"indicator":{"ar":"القيم ضمن 50% من سعر البيع المرصود","de":"Werte innerhalb von 50 Prozent des beobachteten Preises","en":"Values within 50% of observed price","es":"Valores dentro del 50% del precio observado","fr":"Valeurs à moins de 50 % du prix observé","pt":"Valores até 50% do preço observado","tr":"Gözlenen fiyata yüzde 50 yakın tahminler"}}],"rows":[{"indicator":"MAPE, all homes","value":12.53},{"indicator":"MAPE, detached houses","value":18.04},{"indicator":"MAPE, small houses","value":10.69},{"indicator":"MAPE, apartments","value":10.18},{"indicator":"Median absolute percentage error, all homes","value":8.7},{"indicator":"Values within 10% of observed price","value":55.89},{"indicator":"Values within 20% of observed price","value":83.07},{"indicator":"Values within 50% of observed price","value":98.05}],"sourceUrls":["https://www.ssb.no/priser-og-prisindekser/boligpriser-og-boligprisindekser/artikler/revidert-modell-for-beregning-av-boligformue-resultater-fra-modellkjoring-2015-2024/_/attachment/inline/de88a037-954f-449b-b8cc-525d7229d1f9%3A2957029d73f42108832efb0accbbec8044c9494b/NOT2026-37.pdf"],"title":{"ar":"أداء التحقق المتقاطع، 2015–2024","de":"Kreuzvalidierungsleistung, 2015–2024","en":"Cross-validation performance, 2015–2024","es":"Rendimiento de validación cruzada, 2015–2024","fr":"Performance en validation croisée, 2015–2024","pt":"Desempenho da validação cruzada, 2015–2024","tr":"Çapraz doğrulama performansı, 2015–2024"},"type":"table","updatedAt":"2026-10-16T10:14:10Z"}],"version":1},"data_downloads":[{"formats":{"csv":"https://newsverum.com/api/v1/articles/norway-revised-housing-wealth-model-results-2015-2024/data/housing-model-sample-and-areas?lang=en&format=csv","json":"https://newsverum.com/api/v1/articles/norway-revised-housing-wealth-model-results-2015-2024/data/housing-model-sample-and-areas?lang=en&format=json"},"id":"housing-model-sample-and-areas"},{"formats":{"csv":"https://newsverum.com/api/v1/articles/norway-revised-housing-wealth-model-results-2015-2024/data/housing-model-cross-validation?lang=en&format=csv","json":"https://newsverum.com/api/v1/articles/norway-revised-housing-wealth-model-results-2015-2024/data/housing-model-cross-validation?lang=en&format=json"},"id":"housing-model-cross-validation"}],"data_types":["table"],"editorial_illustration":{"alt":"Conceptual illustration of the global economy and trade 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illustration of the global economy and trade 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Norway (SSB)","publishedAt":"2026-10-15","url":"https://www.ssb.no/priser-og-prisindekser/boligpriser-og-boligprisindekser/artikler/revidert-modell-for-beregning-av-boligformue-resultater-fra-modellkjoring-2015-2024/_/attachment/inline/de88a037-954f-449b-b8cc-525d7229d1f9%3A2957029d73f42108832efb0accbbec8044c9494b/NOT2026-37.pdf"}],"summary":"A report published by Statistics Norway (SSB) on 15 October details results and methodological changes in a housing-wealth model based on home sales from 2015 to 2024 and used for 2026 tax-card values. After filtering, 881,472 sales entered the model. The country’s 14,101 basic statistical units in 2024 were grouped into 1,272 calculation areas by housing type.","text":"A report published by Statistics Norway (SSB) on 15 October details results and methodological changes in a housing-wealth model based on home sales from 2015 to 2024 and used for 2026 tax-card values. After filtering, 881,472 sales entered the model. The country’s 14,101 basic statistical units in 2024 were grouped into 1,272 calculation areas by housing type.\n\nA report published by Statistics Norway (SSB) on 15 October details results and methodological changes in a housing-wealth model based on home sales from 2015 to 2024 and used for 2026 tax-card values. After filtering, 881,472 sales entered the model. The country’s 14,101 basic statistical units in 2024 were grouped into 1,272 calculation areas by housing type.\n\nThe revised approach groups smaller basic statistical units rather than relying on municipality borders. A decision-tree algorithm combines areas with similar price patterns, followed by a separate hedonic regression for each area and housing type. In 10-fold cross-validation, mean absolute percentage error was 12.53% for all homes, 18.04% for detached houses and 10.18% for apartments. An estimated 83.07% of values fell within 20% of observed sale prices. These results do not guarantee an individual valuation and depend on the model’s sample and filters.","title":"Norway rebuilds housing-wealth model using 881,000 sales","topics":[],"translations":[{"api_url":"https://newsverum.com/api/v1/articles/norway-revised-housing-wealth-model-results-2015-2024?lang=tr","language":"tr","url":"https://newsverum.com/tr/news/norway-revised-housing-wealth-model-results-2015-2024"},{"api_url":"https://newsverum.com/api/v1/articles/norway-revised-housing-wealth-model-results-2015-2024?lang=en","language":"en","url":"https://newsverum.com/en/news/norway-revised-housing-wealth-model-results-2015-2024"},{"api_url":"https://newsverum.com/api/v1/articles/norway-revised-housing-wealth-model-results-2015-2024?lang=ar","language":"ar","url":"https://newsverum.com/ar/news/norway-revised-housing-wealth-model-results-2015-2024"},{"api_url":"https://newsverum.com/api/v1/articles/norway-revised-housing-wealth-model-results-2015-2024?lang=fr","language":"fr","url":"https://newsverum.com/fr/news/norway-revised-housing-wealth-model-results-2015-2024"},{"api_url":"https://newsverum.com/api/v1/articles/norway-revised-housing-wealth-model-results-2015-2024?lang=es","language":"es","url":"https://newsverum.com/es/news/norway-revised-housing-wealth-model-results-2015-2024"},{"api_url":"https://newsverum.com/api/v1/articles/norway-revised-housing-wealth-model-results-2015-2024?lang=de","language":"de","url":"https://newsverum.com/de/news/norway-revised-housing-wealth-model-results-2015-2024"},{"api_url":"https://newsverum.com/api/v1/articles/norway-revised-housing-wealth-model-results-2015-2024?lang=pt","language":"pt","url":"https://newsverum.com/pt/news/norway-revised-housing-wealth-model-results-2015-2024"}],"url":"https://newsverum.com/en/news/norway-revised-housing-wealth-model-results-2015-2024"},"version":"1"}