Cash and gold jewellery were taken during a burglary in Northfield Avenue, Kettering, sometime between midday on Monday, June 15, and 5pm on Sunday, June 28.
The offenders forced their way through the rear window and once inside carried out a search. They stole the cash and jewellery and left by unlocking the front door from inside the property.
Anyone with any information can call Northamptonshire Police on 101.
Alternatively, they can call the independent charity Crimestoppers anonymously on 0800 555 111.