New data shows 34,198 new residential addresses were recorded in the 12 months to June this year.
A report from GeoDirectory shows 22,390 residential buildings were under construction in June - an 18.4% increase compared to the same time last year.
Of the total number 17.4% were located in Dublin, 14.2% in Kildare and 12% in Cork.
Notably, the year-on-year increase of buildings under construction in Kildare was 74.4%.
While the number of vacant residential properties fell by 5.9% in the same 12 months.
Source: GeoDirectoryA total of 86,708 dwellings were classified as vacant nationally.
The vacancy rate decreased in all but one county: Wicklow.
The highest vacancy rates were in the west and north-west of the country.
At 12.8%, Leitrim was the county with the highest vacancy rate - along with Mayo (11.4%), Roscommon (11.0%) and Donegal (9.7%).
Dublin was the county with the lowest vacancy rate at 1.5% - closely followed by Kildare (1.6%), Meath (2.5%), Waterford (2.6%) and Louth (2.6%).
While the number of derelict addresses also dropped - down 3.8% from June 2021.
Source: GeoDirectoryThe average residential property price was €338,394 in May this year, with price increases recorded in every county.
The highest average property price was seen in Dublin (€514,796) - and the lowest was in Longford (€154,306).
When Dublin is excluded, the average property price nationally fell to €267,351.
Property sales
The number of residential property sales increased by 13.5% in the 12 months to May - representing an additional 5,500 transactions.
Of the 46,328 residential property sales nationally, 16.7% were new dwellings.
Dara Keogh, CEO of GeoDirectory, says: "The level of residential construction has increased significantly over the past 12 months as COVID-19 public health measures on the construction sector were gradually eased then removed.
"This activity indicates a strong pipeline of residential properties that we would expect to enter the market in the months ahead.
"The GeoDirectory Residential Buildings Report found that the number of vacant properties has also fallen in the last year, although when combined with derelict properties, there are still over 100,000 potential properties which could re-enter the market."
GeoDirectory was established by An Post and Ordnance Survey Ireland (OSi) to create and manage Ireland's only complete database of commercial and residential buildings.
