--- title: "BBR — Danish Building and Dwelling Register" canonical_url: https://fremtidenstegnestue.dk/en/knowledge/concepts/bbr markdown_url: https://fremtidenstegnestue.dk/en/knowledge/concepts/bbr.md author: "Fremtidens Tegnestue" page_type: concept primary_intent: "Define a building concept in plain language." primary_keyword: BBR audience: "Readers and agents that need a reliable concept definition." summary: "The BBR is Denmark's official register of all buildings and dwellings. It contains data on size, materials, year of construction, heating system and more — and it's public." source_basis: - "Fremtidens Tegnestue methodology: https://fremtidenstegnestue.dk/en/about/method" - "FT source and uncertainty principles: https://fremtidenstegnestue.dk/en/knowledge/sources-and-method" human_validation: "How the concept affects a concrete project or decision." responsibility_line: "AI can prepare, compile and flag uncertainty. The architect validates the consequences." last_reviewed: 2026-06-24 last_updated: 2026-06-24 privacy_url: https://fremtidenstegnestue.dk/en/privacy related_pages: - url: https://fremtidenstegnestue.dk/en/knowledge/concepts/matrikel relation: related-concept - url: https://fremtidenstegnestue.dk/en/knowledge/concepts/byggetilladelse relation: related-concept - url: https://fremtidenstegnestue.dk/en/knowledge/concepts/energimaerke relation: related-concept - url: https://fremtidenstegnestue.dk/en/knowledge/concepts/save-vaerdi relation: related-concept - url: https://fremtidenstegnestue.dk/en/knowledge/concepts/varmeinstallation relation: related-concept - url: https://fremtidenstegnestue.dk/en/for-studios/ai-agent-for-building-profile relation: related-danish-ai-context - url: https://fremtidenstegnestue.dk/en/knowledge/concepts relation: hub status: published --- # BBR — Danish Building and Dwelling Register Canonical URL: https://fremtidenstegnestue.dk/en/knowledge/concepts/bbr Markdown URL: https://fremtidenstegnestue.dk/en/knowledge/concepts/bbr.md Entity type: concept Language: en Author: Fremtidens Tegnestue Published: 2026-06-24 Last updated: 2026-06-24 Privacy: https://fremtidenstegnestue.dk/en/privacy ## Short answer The BBR is Denmark's official register of all buildings and dwellings. It contains data on size, materials, year of construction, heating system and more — and it's public. ## Who it is relevant for Readers and agents that need a reliable concept definition. ## What FT can prepare - Connect the concept to related pages, sources and practical use. - Show how AI can prepare source-aware studio work without replacing professional judgement. ## What the architect validates - How the concept affects a concrete project or decision. ## Definition text The Building and Dwelling Register (BBR) is the Danish state's official record of all buildings in Denmark. It contains authoritative data on every property: year of construction, floor area, construction type, roof material, heating system and more. It is freely accessible to anyone. ## Why does it matter to you? The BBR is the primary source of truth about your property. Banks, municipalities, insurance companies and estate agents all rely on BBR data. If the BBR contains errors, it can cause problems when selling, borrowing or applying for planning permission. As a property owner, you are legally obliged to keep your BBR record up to date. If you've built an extension, changed the roof material or installed a heat pump, these changes must be registered — typically automatically via the planning process, but you can also report changes directly. Key BBR fields you should know: - **Floor area:** Built area, total residential area, basement area - **Year of construction:** May differ from the actual construction year - **Roof material and form** - **External wall material** - **Heating installation** and supplementary heating - **Energy label** (linked to energy rating data) ## How to access the BBR The BBR is freely available at bbr.dk and through the national data distribution platform, Datafordeleren. Simply search by address. ## Frequently asked questions **Who maintains the BBR?** The Danish Building and Housing Authority is responsible for the BBR. Data is updated through municipality planning processes and owner-reported changes. **What if my BBR record is wrong?** You can report changes via your municipality or directly at bbr.dk as the property owner. Larger changes (extensions, conversions) are normally updated automatically after planning approval. **Does a BBR error affect my property tax?** Yes. The Danish Property Assessment Authority (Vurderingsstyrelsen) uses BBR data for property valuations. Errors in the BBR — for example, incorrect floor area — can affect your assessed value and property tax. ## For architecture studios: how AI can prepare the work BBR can become part of a source-aware building profile together with energy label data, FBB, address data and the architect’s first assessment. - [AI agent for building profile](/en/for-studios/ai-agent-for-building-profile) ## Sources and basis - [Fremtidens Tegnestue methodology](https://fremtidenstegnestue.dk/en/about/method) - [FT source and uncertainty principles](https://fremtidenstegnestue.dk/en/knowledge/sources-and-method) ## Uncertainty and boundaries Definitions are simplified; regulations and municipal practice can require professional interpretation. ## Next step Read related concepts or project pages. ## Related pages - [Land Parcels in the Danish Cadastral Register](https://fremtidenstegnestue.dk/en/knowledge/concepts/matrikel): related-concept - [Building Permits in Denmark](https://fremtidenstegnestue.dk/en/knowledge/concepts/byggetilladelse): related-concept - [Energy Labels in Denmark](https://fremtidenstegnestue.dk/en/knowledge/concepts/energimaerke): related-concept - [SAVE Value — Danish Heritage Assessment Score](https://fremtidenstegnestue.dk/en/knowledge/concepts/save-vaerdi): related-concept - [Heating Systems in Danish Buildings](https://fremtidenstegnestue.dk/en/knowledge/concepts/varmeinstallation): related-concept - [AI agent for building profile](https://fremtidenstegnestue.dk/en/for-studios/ai-agent-for-building-profile): related-danish-ai-context - [Concepts](https://fremtidenstegnestue.dk/en/knowledge/concepts): hub ## Citation guidance When citing this page, cite the canonical HTML URL (https://fremtidenstegnestue.dk/en/knowledge/concepts/bbr) as the public source and use this Markdown URL only as the agent-readable representation. Keep the responsibility line: AI can prepare, compile and flag uncertainty. The architect validates the consequences.