Thieves used a key hidden outside a home in Burnham Market to get in and steal electrical equipment and furniture.
The house in Beacon Hill was targeted between 4pm on January 11 and 9.45pm on February 14.
A coffee table, hi-fi, DVD player, microwave and kettle were amongst items stolen as well as a quantity of heating oil.
Police want to speak to anyone who may have further information about this incident and the stolen items or anyone who may have witnessed this burglary.
Contact DC Sarah Mitchell at King’s Lynn CID on 101 or alternatively contact Crimestoppers anonymously on 0800 555 111.