Officers at Broadland District Council have raised some concerns over the local impact of the Norwich Airport masterplan while broadly welcoming the vision for expansion.
The airport's draft masterplan, which was revealed in July, covers its anticipated development up to 2045.
Its ambitions include increasing annual passengers numbers from 520,000 to 930,000 by 2030, and more than 1.4 million by 2045.
But that could lead to extended operational hours.
Managing director Richard Pace previously said the extension would be necessary so that planes could complete two return trips to holiday destinations further afield in a single day.
Reporting to the cabinet, Broadland officers said they have 'concerns over the vagueness of the impact of noise pollution on the surrounding areas.'
Concerns were raised over the 'small increase in the number of dwellings affected, suggesting that this number is significantly underestimated.'
They add more work should be done to assess the scope of potential disruption, and the future of the old Anglia Windows site on Holt Road in Horsford, subject of a planning application by the Community Sports Foundation, should be taken into account.
Officers said they support the project because the economic benefit is 'vast', and the airport 'plays a key role as a major local and regional gateway to tourism'.
It comes after Hellesdon residents raised concerns over the impact of late-night flying at a recent parish council meeting.
Speaking at the parish council meeting, Robert Wendrop, who lives on Holt Road, said: 'It's the night flights and aircraft size that worries me.
'The runway extension would allow much bigger planes to land, which would make much more noise.
'We are very near the flight path and it would have a massive impact on the house value.'
Meanwhile, councillor Graham Everett said his concern was that it would be Norwich City Council making a decision on any future plans.
'It is Broadland residents who are affected by this, but the decision will be made by Norwich City Council, and I think that is where the problem comes.'
Broadland District Council's cabinet will discuss the plans tomorrow. To view the plans, visit www.norwichairport.co.uk
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