Yes, an EICR (Electrical Installation Condition Report) is needed to legally promote your private home in many jurisdictions

http://www.c9wiki.com/link.php?url=https://s3.us-east-005.backblazeb2.com/landlordpropertycertificates/eicr-certificates/eicr-the-essential-checklist-for-selling-your.html

Yes, an EICR (Electrical Installation Condition Report) is needed to legally sell your property in lots of jurisdictions