Impossible to have an addition to rebuilt condo (7)

I believe the answer is:

nocando

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'impossible to' is the definition.
I know nothing about this answer so I can't judge whether this works.

'an addition to rebuilt condo' is the wordplay.
'addition to' is an insertion indicator.
'rebuilt' is an anagram indicator.
'condo' anagrammed gives 'nocdo'.
'an' going inside 'nocdo' is 'NOCANDO'.

'have' acts as a link.

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I've seen this clue in The Irish Times.

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