Police are appealing for witnesses after jewellery, cash, travellers cheques and a laptop were stolen from two homes.
Cash and travellers cheques were taken from a home in Churchill Road, Bicester, after thieves broke through rear patio doors.
It happened between Monday September 8 and Friday September 12.
Jewellery and a laptop were then stolen from a home in Turnbury Close, Bicester, after burglars broke through rear patio doors between 8am and 2.30pm on Tuesday September 16.
Anyone with information about the burglaries should call Sgt Stephen Willis on 101.
Alternatively, contact Crimestoppers anonymously on 0800 555 111.
Bicester neighbourhood officers are happy to provide free crime prevention advice to local residents on the best way of keeping their property safe and secure.
Advice can be arranged by contacting the Bicester neighbourhood team on 101.