The Scottish Premiership side submitted detailed plans in January for a 20,000-seat capacity stadium, football academy and community facilities at Kingsford.
However, the club has now confirmed that the application is likely to be presented at a full council meeting in October rather than June as initially expected.
The news follows recent requests from the city council and consultees for further information to inform their assessment, such as additional environmental surveys.
"Although this is later than we had hoped, we are confident that, if planning permission is granted in October, we will still meet the original target timescales of completing the community sports campus and football training academy in 2018 and the new stadium for the 2020/21 season,” said George Yule, executive vice-chairman of Aberdeen FC.
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The club has now provided the additional information requested within the allotted timescale, despite having already developed a comprehensive planning application package.
If approved, the project would be delivered in two phases, with the academy and various facilities constructed prior to the actual stadium.
"A delay of a few weeks at this stage is not unduly concerning as we can make specific adjustments to our project schedule,” added George.
“However, further slippage, beyond October, or a negative outcome will result in us missing our target timescales … this will have a material impact on the club's ability to recruit and retain talent and to maintain our current position within Scottish football at a time when our football staff are delivering success for the city, the local community and the club.”