Burglars stole jewellery when they forced their way into a home in Shenley Lodge last month.
The incident took place in Cadman Square between 4.30-8.15pm, on Tuesday, December 30.
Offenders used a ladder to access a balcony and then forced open the balcony doors.
Anyone with information should contact Det Con Samantha Reynolds, from Milton Keynes police station, via the 24-hour enquiry line 101.
Alternatively call Crimestoppers, anonymously, on 0800 555 111.