ArkivDigital now launches a digitally searchable building register. The register is still under construction, and so far it covers building drawings from Gotland, Jönköping, Kalmars, Kronoberg, Stockholm, Uppsala and Östergötland County. More searchable material will be added afterwards. On this page https://www.arkivdigital.se/online/register/bouppteckningar There is a list showing what quarters and town hall rights are currently searchable.
One of 1031 meets Sven Svensson. The register shows first name, last name, title / occupation, town / city, place (town; farm etc), building year and other information (which often contains information about surviving spouse).