Residential developers Quintain said it had received planning permission from Dun Laoghaire County Council for 168 new homes in its Cherrywood Village development in South Dublin.
Quintain said it will start construction on these homes and a previously approved phase of 136 homes once the Covid-19 health restrictions on construction activity are eased.
The 304 new homes will be in a development called Cherry Lane, close to Tully Park and Ticknick Park.
Quintain plans to deliver a total of 1,300 new homes at Cherrywood Village by 2025, and to complete this phase by the middle of 2023, with the first launch of homes for sale expected in autumn of this year.
Cherry Lane will comprise a mixture of 167 houses, 36 apartments and 101 duplexes, and has a gross development value of about €150m.
Quintain also recently announced plans to begin construction of over 700 homes in Adamstown, as part of their plans to deliver over 9,000 homes around the greater Dublin area.
Eddie Byrne, Joint Managing Partner Quintain Ireland, said that the Covid-19 pandemic has reinforced people's desires to live in well-connected communities with essential amenities right on the doorstep.
Mr Byrne said the interest in Cherrywood Village since its launch has underscored that need, with over 5,000 prospective homeowners registering their interest.
"The construction of new housing supply is vital, and the 1,300 homes we are planning at Cherrywood Village will cater to a range of different housing needs with a particular focus on young families," he added.