Burglars have targeted properties in Rockpool Road, Brandon Court, Ferriman Way and Botanical Drive, Truganina in a spate of break-ins between June 7 and 12.
Laptops, jewellery, perfume, sunglasses and cash were stolen.
The thefts occurred while occupants were at work.
Police said thieves entered via rear and side windows. Information to Crime Stoppers on 1800333000
