GDPR permits a general contractor to disclose personal information of the client who hired them for a home renovation to subcontractors, for their purpose of carrying out the renovation as well as for the correction of defects within the scope of the warranty.

The legal basis for this is that it is necessary for the performance of the contract with the client (Article 6(1)(b) of GDPR), says the Data Protection Authority of Austria.

Read the full opinion.