National Buildings Database

--> [Download extractions department by department on our website](https://bdnb.io/download/) The BDNB (National Building Database) is a mapping of the existing building stock. Structured in the ‘building’ mesh, it contains an identity card for each of the **32 million buildings**, residential or tertiary. It is built by the geospatial crossing of some 20 databases from public bodies. Updates: - **millesime 2023-11.a (format v0.7.7)** (28 May 2024): heating/cooling networks + integration of SIRENE data + GNI + land files 2022 / maj ban/ maj BDTOPO - **millesime 2023-01.a (format v0.7.5)** (17 January 2024): New geospatial crossing + MAJ DPE/RPLS/RNC - **millesime 2022-10-d (format v0.7.4)** (03 July 2023): integration of multi-millennial dle, dvf_open, maj dpe - **millesime 2022-10-c (format v0.7.3)** (22 March 2023): addition of new dpe + various fix - **v0.7.2_fix_extract_corse** (20 January 2023): addition of the perimeter of Corsica that had not passed in the publication of v0.7.2 - **v0.7.2** (22 November 2022): new relational model, more complete, better geospatial cross-breeding between the different databases, taking into account the first remarks that have been reported to us - **v0.6.2** (27 April 2022): republication of v06 data with release status patches. Display of ANAH RNC (National Register of Condominiums) data. --> [View detailed changelog](https://bdnb.io/archives_data/bdnb_millesime_2023_11_a/#changelog) The BDNB is intended to be shared and to constitute an open reference framework, the basis for the development of multiple services carried out by public and private actors, but also a place for capitalizing knowledge on existing buildings. The [CSTB](https://www.cstb.fr/en/) encourages the multiplication and diversity of BDNB use cases. It establishes the conditions for openness and interoperability, and is at the disposal of project promoters to support them in the implementation of their application. Possible areas of application include: thermal renovation of buildings, support for national and territorial public policies, the circular economy, risk management, etc. The BDNB is paving the way for a unified "Geo-common" repository in co-production with all institutional partners and contributors, and is providing technological support for the project of a national repository for buildings [GNI] (https://rnb.beta.gouv.fr/) led by the Startup d'Etat GNI (ex Bat-Id) Its construction has been initialised for the purposes of the [GO-Renovation] project (https://bdnb.io/services/gorenove). Go-Rénove is one of the 9 projects of the [PROFEEL] programme (https://programmeprofeel.fr/projets/go-renove/), carried out by professional building organisations and financed by the Energy Saving Certificates, in support of the energy renovation of existing buildings. The Go-renovation decision support services are the first operational application of the BDNB, on the theme of the renovation of the existing housing stock. More information on [https://bdnb.io/](https://bdnb.io/) For any topic of discussion, **request for support**, request for **partnership** or contact **commercial**, please contact [contact with us](https://bdnb.io/contact/). For GPKG format we recommend using an up-to-date version of QGIS (3.36)