# Norwegian residential construction costs rise 4.1% in year to September

> SSB’s national input-cost index for residential building construction rose 0.3% monthly and 4.1% annually.

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- Publisher: Newsverum
- Section: Economy
- Country: Norway
- Published: 2026-10-15T09:48:29+00:00
- Updated: 2026-10-15T09:48:29+00:00
- Event / data period: 2026-09
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Statistics Norway (SSB) released September figures for its residential construction cost index on October 13. The national index tracks prices of inputs used to build homes; it excludes changes in productivity and profit margins. The overall index stood at 160.3, with 2015 set to 100.

Total residential construction costs increased 0.3% from August and 4.1% from September 2025. Material costs rose 0.2% month on month and 2.5% year on year, while the index for multi-dwelling houses was up 5.4% annually. SSB says the index is used mainly to adjust costs in construction contracts.

## Data

### Official statistical indicators

Figures reproduce the official values published by the source for the stated reference period.

Methodology: Indicators are transcribed within the geography, period, measure and methodological scope stated by the source.

| label | value | unit | period | basis |
|---|---|---|---|---|
| Monthly change in residential construction costs | 0.3 | percent | 2026-09 | observed |
| Annual change in residential construction costs | 4.1 | percent | 2026-09 | observed |
| Annual change in residential building material costs | 2.5 | percent | 2026-09 | observed |

Sources: <https://www.ssb.no/en/priser-og-prisindekser/byggekostnadsindekser/statistikk/byggjekostnadsindeks-for-bustader> · Download data: [JSON](https://newsverum.com/api/v1/articles/norway-residential-construction-costs-september-2026/data/no-residential-construction-cost-index-september-2026?lang=en&format=json) · [CSV](https://newsverum.com/api/v1/articles/norway-residential-construction-costs-september-2026/data/no-residential-construction-cost-index-september-2026?lang=en&format=csv)

## Sources

- [Statistics Norway (SSB)](<https://www.ssb.no/en/priser-og-prisindekser/byggekostnadsindekser/statistikk/byggjekostnadsindeks-for-bustader>) (Source checked: 2026-10-15; Published: 2026-10-13)

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