No one has yet been identified as responsible for any of the thefts.
Trust CEO Ricky Houghton said the intruders had smashed down the front doors to gain entry to the houses, doors that would now have to be replaced. He was far from conceding defeat, however.
"It's frustrating but we're not going to be put off," he said.
"We're committed to these families, and we will get them into their own homes. It's a bit regrettable because we don't have the money to fix the damage, but we don't have much choice.
"It's going well," he added, but district council bureaucracy was also proving to be frustrating and expensive.
Council costs had risen from the original budget of $1.7 million to $2.1 million, while money would have to be found to provide on-site storage for stormwater and to install a sewage pumping station that Mr Houghton said would send sewage "all around Kaitaia" until it returned to the housing complex 12 hours later and entered the main that had already been installed there.
"We've even had to install infrastructure for houses that aren't there," he said.
It had originally been hoped to install the first families in their homes in August /September, but the target now was Waitangi Day next year, Mr Houghton attributing three to four months of that delay to resource consent issues.