It indicates that over 5,000 rooms are due to come on-stream
A new report on accommodation capacity in Dublin has found that pressures are due to "significantly ease" by 2019.
The Fáilte Ireland report examines visitor accommodation between 2015 and 2020.
It indicates that 5,382 rooms are due to come on-stream.
Some 3,444 rooms will be in new hotels, with a further 1,938 in existing hotel extensions.
Fáilte Ireland say the report presents the most up-to-date projections of additional hotel capacity set to come on-stream in the capital.
It says of the anticipated new rooms, most will be located in Dublin 1, 2 and 4.
Fáilte Ireland's head of research, Caeman Wall, said: "Despite the over 50% growth in tourist arrival into Dublin and significant growth in corporate travel since 2010, the stock of tourist accommodation is largely unchanged to date.
"With further visitor growth anticipated and the importance of Dublin as a gateway to the rest of Ireland, Dublin’s shortage of tourism accommodation is one of the biggest challenges facing the continuing growth of Irish tourism.
"The hotel rooms identified that are due to come on stream in today’s report represent private sector investment worth €800m or more based on current market valuations and are very welcome.
"We need do whatever we can to help ensure the current pipeline of development is delivered in full as quickly as possible.
"This extra capacity will not only increase availability but also significantly help moderate price increases."
However, the report says there will be ongoing pressures until the new rooms arrive.
"It is critical that the hotel industry keep a watchful eye on competitiveness. If we damage our overall value for money perception with international visitors and buyers, we will create a problem that will take a long time to fix."