The Labour MP for West Dunbartonshire wants to see "continued investment" in Dumbarton after it was announced that spending plans to regenerate the area are "under review".
Scottish Secretary Ian Murray confirmed last week that many of the funding promises by the last prime minister “didn't have any cash attached".
He said there would be more information in next month’s budget and also in next year’s spending review.
West Dunbartonshire Council applied for the Levelling Up Funding in 2021 and was awarded £19.9million to deliver projects that enhance Dumbarton town centre.
At least £10million of this is earmarked for the Artizan Centre.
Plans also include the transformation of historic Glencairn House into a museum and improved pedestrian links to Dumbarton Central station.
The council has pledged £2.2million towards the project.
Work has already started to demolish the Artizan Centre.
However, it appears these plans could be at risk ahead of chancellor Rachel Reeves' budget on October 30, based on Murray's comments.
Despite the funding being one of the many things "under review" by the Westminster government, McAllister is still hopeful Dumbarton will continue to be supported.
He said: "I want to see continued investment in our town.
"A decision on future funding will be made following the spending review process and the Autumn Statement.
"Due to the absolute dire state the Tories left the public finances in, the UK Government inherited a £22billion in-year black hole in the accounts.
"The previous government spent the treasury reserves three times over by July of this year.
"After crashing the economy with unfunded spending plans, the Conservatives were ready to do it all over again.
"We are having to take tough decisions to balance the books after the mess the Tories made of things.
"This is about being honest with the country and respectful of taxpayer's money and not making promises we can’t keep."
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