Roomy family home in Dublin 18

Built in 2007, this five-bedroom detached property is set on an acre of land and includes a heated indoor pool and a screening room

Brandywyne House is a staggeringly large property with 792 sq m (8525sq ft) of space. It could certainly make for a roomy family home.

Built in 2007, the current owner bought it three years ago when it was still a shell with just floors and walls for €1.1 million and invested between €500,000 and €600,000 finishing it, hiring Christine Grech of Angel Designs, a decorator who featured on RTE's Showhouse TV series to complete the works.

A portico of salvaged granite columns sets the tone for the house’s dramatic interior. In the enormous open-plan living space there is a diningroom with a 12m high ceiling, a huge kitchen with marble countertops and a living area that overlooks the southwest facing back garden.

Embedded into the limestone floor like gemstones are two large panes of thickened glass through which you can see the turquoise heated swimming pool below.

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Each pane is surrounded by tiny peridot green lights that frame them when lit.

From here a series of double doors lead out to a gargantuan wooden deck complete with all-weather speakers to broadcast the party to the dance floor.

The cinema room is the size of a small suburban screening room that is so dark when the blinds are down that you have to make like Marcel Marceau to feel your way out. On the ground floor there a further three rooms to explore.

Set on about on acre of grounds the house has a geothermal heating system combined with underfloor heating, solar panels and a B2 Ber, essential pieces of kit when you’re faced with heating a house of this scale.

There’s a lift to transport you down to the basement, 272sq metres of wellness that includes an 11m long indoor swimming pool, a sauna big enough to fit a five-aside football team and a gym that looks out on to the azure blue swathe of mosaic tiled water.

Upstairs there are five sizeable bedrooms. The master suite has a dressingroom, a huge en suite and balcony where you can drink in views of the Witch’s Hat atop Killiney Hill, Sorrento House in Dalkey and a triangle of blue sea that makes it the property’s most bewitching feature.

The house is asking €2.5 million through agents DNG.

Shankill House, a three-storey period property that is being sold through Colliers in several lots, is situated next door. The house, which is in need of refurbishment, includes a mews and studio and is on 3.2 acres. It is asking €1.5 million.