The plans could take two to three years to finalise
Bosses at Liverpool's famous Philharmonic Hall are planning to build a second concert theatre to take the venue "into the 21st Century".
They are currently looking to raise the £40m needed to erect the new building, on a car park that runs adjacent to the Hope Street art deco building.
The city council has been informed, but plans are at a "very early stage" a Philharmonic spokeswoman said.
The concert hall attracts millions of music lovers every year.
'Range of options'
Philharmonic chiefs are also considering leaving the building on Hope Street if a suitable new site became available.
"We want to take the Philharmonic into the 21st Century," a spokeswoman said.
"By doing this and enlarging our venue we will have many more options and be able to accommodate a larger range of musicians and artists.
"However, plans are in their beginning stage, we haven't put a planning application in and we are still considering a range of options.
"It may even take two to three years to put the plans in place, when building work will start," the Philharmonic Hall spokeswoman added.