In its decision dated August 6, 2020, the Higher Regional Court (OLG) of Munich ruled on the requirement of written form for agreements in connection with refurbishing and extension work. In the given case, the landlord removed outside roller blinds and offered the tenant the installation of inside roller blinds, since he didn’t want to install new outside roller blinds for cost reasons. The tenant made partial use of the offer; a written agreement of this arrangement in line with the written form, however, was not made. Later, the tenant terminated the lease agreement due to a violation of the written form. In the opinion of the Higher Regional Court of Munich, the termination was justified because the understanding was essential to the lease agreement and would also have had an impact on an acquirer. The court confirms again how important it is to keep the lease agreement up to date in writing.