Thieves broke into a house in The Ridge, Great Doddington, sometime between 7.45am on Thursday, December 19, and 6.15pm on Tuesday, January 7, while the homeowner was on holiday.
A spokesman for Northants Police said a number of items were stolen.
Anyone with information or who may have witnessed this incident is asked to call the police on 101 quoting reference number 20000013315.