Ordinance on the Reference Database for Buildings and Dwellings (OBDR-BL) - Purpose and Scope (VRDB-GW)

**1. This Regulation sets out the implementing provisions for the Reference Database for Buildings and Dwellings (hereinafter: RDB-BD) in accordance with the Act on Reference Databases and the Harmonization of the Personal Register, the Business and Enterprise Register, as well as the Building and Dwelling Register (GRDB).**

**2. This Regulation applies to:**

a) the RDB-BD and the data contained therein;

b) the source databases of the RDB-BD;

c) the linkages between the RDB-BD and the other RDBs.

**3. The federal provisions remain reserved.**

1. The RDB-GW includes the following elements, which are listed in detail in Annex 1

a) the building identifier assigned by the FSO (EGID);

b) the dwelling identifier assigned by the FSO (EWID);

c) the building entry identifier assigned by the FSO (EDID);

d) the construction project identifier assigned by the FSO (EPROID);

e) the data on construction projects;

f) the data on buildings;

g) the data on dwellings.

1. The data recorded in the RDB-GW is stored according to its status.

a) Data with the status "active" is available in the RDB-GW;

b) Data with the status "inactive" is stored but may be destroyed after 10 years by decision of the RDB Competence Center (KRDB), in which case a protocol must be drafted for such destruction.

2. The change history of data regarding buildings and apartments is retained but may be destroyed without any expiration period by decision of the KRDB.

3. Logging data is retained for a minimum of 18 months.

4. Subject to the provisions of data protection law concerning individuals' rights over their own data.

1. The RDB-GW is composed of the following active source databases

a) the Swiss Federal Building and Housing Register (GWR);

b) the Valais Land Register;

c) the municipal cadastres;

d) the municipal registers of building permit applications;

e) the cantonal IT portal for official surveying;

f) the cantonal IT portal for land registry matters;

g) the source database with the taxable value of buildings and apartments;

h) the cantonal source database with building permit applications.

2. Appendix 2 lists the active source databases as well as the responsible parties or holders of the linked registers.

1. Applications by municipalities for the transfer of data used by the RDB-GW must be certified by the department responsible for information technology.

2. The applications must particularly meet the requirements in the areas of data security, exchange protocol, and data quality assurance.

1. Users must treat the data of the RDB-GW confidentially and in compliance with official secrecy, provided that this data is not published by the source database.