Cardiff Civic Society has asked Planning Minster Carl Sargeant to "call in" a planning application for part of the Cardiff Central Square development.
Cardiff councillors are due to vote on the plans on Wednesday.
The Welsh government said it had yet to make a decision.
Cardiff planners have recommended the plans go ahead, saying concerns have been addressed.
BBC Wales plans to take the tenancy of the planned new media centre building in Central Square - where the current bus station is situated - from developers Rightacres Property Ltd.
Rightacres is also applying to demolish the nearby ageing Marland House office and retail building, build basement car parks and landscape the square.
A council report to the committee said the application seeks to "demonstrate that the development does not compromise the delivery of a new bus station on the Marland House/ NCP car park site, and that the environmental impact of relocating the bus station is acceptable".
However, the application does not include any plans for the permanent replacement of the bus station.
In its letter to ministers, the civic society said the application failed to address the need for a transport hub close to the railway station and asked for the decision to be taken out of the hands of councillors.
It claims the development will "destroy the central bus station with no replacement provided for at least two and a half years".
Paul McCarthy, chief executive of Rightacres Property, said although the current application did not include the transport plan, details of a new hub would be revealed in the near future.
A Cardiff council spokesperson said: "Any mention of the bus station in the current planning documentation for the demolition of Marland House and the BBC headquarters is incidental and lacks significant detail, as it isn't part of this application."
Network Rail has also raised concerns about the loss of current taxi parking and passenger pick-up and drop-off points, as a civic square could be built between the planned development and Cardiff Central rail station.
In a statement to planners, it said: "This proposed development will remove a key rail customer facility on the northern side of the rail station and will necessitate its relocation away from the station's main entrance."

A 234-unit nursing home in Elkana, 30 houses in Beit Arye and 20 in Givat Zeev got the go-ahead on Tuesday.
Retrospective permits were also issued for 179 existing homes in Ofarim.
The US said it was "deeply concerned" and warned that settlement expansion posed a "very serious and growing threat" to peace with the Palestinians.
About 570,000 Israelis live in more than 100 settlements built since Israel's 1967 occupation of the West Bank and East Jerusalem. The settlements are considered illegal under international law, though Israel disputes this.
Peace Now reported that the latest planning decision by the Israeli military-run Civil Administration in the West Bank meant 2,623 housing units at settlements had been approved so far this year. The figure includes 756 illegally-built homes that have been retrospectively "legalised".
A senior US official told the AFP news agency that settlement expansion - as well as continuing demolitions of Palestinian homes - "fundamentally undermines the prospects for a two-state solution and risks entrenching a one-state reality of perpetual occupation and conflict".
"We are particularly troubled by the policy of retroactively approving illegal outposts and unauthorised settlement units," the official said.
"These policies have effectively given the government's green light for the pervasive advancement of settlement activity in a new and potentially unlimited way."
On Tuesday, Israel reacted angrily to similar criticism of its settlement activities by the UN special co-ordinator for the Middle East peace process, Nickolay Mladenov.
"It is difficult to read in these actions a genuine intention to work towards a viable two-state solution. This appears to reinforce a policy, carried out over decades, that has enabled over half a million Israelis to settle in territory that was occupied militarily in 1967," he told the UN Security Council.
A spokesman for Israeli Prime Minister Benjamin Netanyahu accused Mr Mladenov of distorting history.
"Jews have been in Jerusalem, Judea and Samaria for thousands of years and their presence there is not an obstacle to peace," David Keyes said, using the biblical names for the West Bank.
There have been numerous rounds of peace talks between Israel and the Palestinians since the early 1990s, with the last collapsing in acrimony in 2014.
Permission for a new BBC Wales headquarters in Cardiff city centre should not be granted until plans for a new bus station are in place, a conservation group says.
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Israel has approved the construction of 285 new homes at Jewish settlements in the occupied West Bank, according to the settlement watchdog Peace Now.