Ireland wants to host the T20I series against Bangladesh in England.
Ireland Cricket CEO Warren Deutrom said the board was looking for venues in England, reports ESPNcricinfo.
Bangladesh will arrive for three ODIs at Stormont in May.
"There is no doubt that this will remain one of the biggest home seasons for Ireland, with the hosting of the number one T20I side in the world, and the runners-up at the most recent 50-over World Cup," Deutrom said.
"However, this has also undoubtedly been our most complex match allocation process ever, given the multiple challenges we are working through. Chief among these is the loss of access to one of our international grounds for at least 2020, with Clontarf undergoing extensive renovations."
"With this venue loss, we have been reduced to 12 pitches available across our three remaining international grounds that need to cater for 15 matches. Given the ICC's high standards of expectation regarding pitch quality, this has influenced several of the match allocations. Also key to our deliberations has been the need to provide a high volume of white-ball cricket given the T20 World Cup in October and the start of the World Cup Super League."
Deutrom said, the T20Is to be played against Bangladesh in May could end up being hosted outside of Ireland.
"The outstanding fixtures that remain unallocated at this stage are the T20 Internationals against Bangladesh," he said. "We are currently investigating venue options that will fit with our limited scheduling windows and fresh pitch availability - this includes looking at an option of hosting the Bangladesh T20Is in neutral venues in England as a temporary option until our venue and pitch capacity is back at full strength."
Ireland fixtures for 2020
May 14 - 1st ODI v Bangladesh, Stormont
May 16 - 2nd ODI v Bangladesh, Stormont
May 19 - 3rd ODI v Bangladesh, Stormont