Burglars stole a set of keys and a purse from a home in Garsington Road while the resident was upstairs.
The offenders got in through a back door on Friday between 9pm and 10pm.
They searched the kitchen before leaving with the items. The purse included bank cards and cash.
Police are appealing for information. Call the non-emergency 101 number or the Crimestoppers charity anonymously on 0800 555111.