Covering one acre, the site is in the grounds of Adare Manor and was sold by manor owner Tom Kane to a Limerick purchaser.
It was one of 20 sites in the manor grounds which had outline planning permission.
The other 19 sites of just less than an acre sold for prices ranging from €650,000 to €750,000.
The sites are about 200 metres from the Manor Hotel and the price includes life membership of the Adare Manor Hotel Golf Course where Tiger Woods will play next July in the JP McManus Golf Classic.
A spokesperson for the manor said: “The sites are overlooking the driving range. They were put on the market 18 months ago with outline planning permission. We have just completed the sale of the last one for €900,000.”
The purchasers will have to submit their house plans to architects appointed by Mr Kane and these will have to comply with certain specifications set down by Adare Manor and Limerick County Council.
The manor spokesperson said: “All 20 sites have been purchased by Limerick people and they are clustered together in an area of the estate known as The Demesne. The area will have its own security gate and all services.”
People wishing to buy a site and build in the Adare area must have family connections with the area.
But the manor sites were exempt from this specification as the sites are connected to the village water and sewerage system.
One-acre sites in the Adare area usually fetch about €400,000.
Adare Manor has also received full planning permission from Limerick County Council for 276 houses on land adjacent to the manor, known as Hourigans Field.