Mr McCully said the suggestion that "large sums of money" were being spent on swimming pools while jobs were under threat were "ridiculous".
"The document that I understand to be in question was an engineer's recommendation ... it was distributed to those who might tender for the outsourcing work should such outsourcing work proceed. There is no proposal to spend money at the moment."
Mr McCully said there had been a recommendation to upgrade the Niue residence, but Mr Blumsky had told him the idea was "barking mad" and he agreed, and passed that message on to the ministry.
"In January of this year, when it became clear to me that some jobs in the ministry were on the line, I asked to see the chief executive, and I told him that I thought all non-essential capital expenditure should cease if there was to be discussion about staff positions going," Mr McCully told Parliament.
Ministry of Foreign Affairs chief executive John Allen last week announced a proposal that would cut 305 ministry jobs, including 63 diplomatic and policy positions. He stressed that the plan was not a "done deal" and staff had a month to provide feedback.