In virtually every case the offender had gained access to the property through an open window or an unlocked door, Mr Dearns said.
Residents needed to make sure their properties were secure 24-hours a day.
"Some of the properties targeted have been shared flats where occupants have left doors open for other flat-mates returning home," Mr Dearns said.
"Police ask that in these cases, occupiers and house owners are cautious and lock doors and windows even if someone is planning to return home later."
It was better for someone to have their sleep interrupted by a flat-mate returning home, than reporting a break in the next morning, he said.
"By taking simple precautions, making sure your windows are secure and your doors are locked, you dramatically reduce your chances of being a victim of burglary."
Police would also like Wellingtonians to be mindful of where things are situated on their property.
If items such as ladders or outdoor furniture had been moved, particularly from where they were normally situated, to against a building wall, this might be a sign that someone uninvited has been on your property, he said.
"We want to hear about those situations."
If anyone had any information regarding suspicious behaviour in Thorndon, Kelburn or Aro Valley they should contact Wellington Police on (04) 381 2198. Information could also be provided anonymously via Crimestoppers on 0800 555 111.