Kelly said the success had given councils confidence in taking such cases to court.
She was unsure how long exactly the owners of the 10 buildings had had to either bring them up to standard or demolish them, but it was at least a few years.
"You've had a number of years to do something," she said.
"Plenty of other building owners are in exactly the same situation, you know, and got on and did something with their building."
Three of the buildings are in Hutt Central, while there are two each in Petone, Naenae, and Alicetown, and one in Wainuiomata.
Council doesn't yet know what action they'll be taking against the owners.
Their notices expired in December, and council is now assessing the risk factors for each building to decide what should be done.
In a report to the Policy and Regulatory Committee, Kelly said prosecution was "likely" for some of the owners, given last year's success.
Today, she had a message for them: "get on and be a bit sincere about doing something - although it may be too late by now".