Edged into Bartley's Hill and taking in 180 degree views of Brisbane City, the only visible element from the lower street level of 128 Crosby Rd, Ascot is a Batman-like tunnel stretching 50m to the elevated home.

Currently listed for sale with Queensland Sotheby’s International Realty, the architecturally designed home is extremely private, yet manages to capture the remarkable views of Moreton Bay through to Mt Coot-tha.

Reminiscent of a Hollywood film set, the 50m concrete enclosed tunnel, one of two entrances to this secretive Ascot site, extends upwards to an underground bunker-like garage capable of accommodating eight to ten cars.

The tunnel, internal lift system and house is a complex feat of engineering which has to be seen to be believed.

Current owner, Brett Walker, who co-designed the home with a local architect, said there were a few hurdles to overcome when it came to the engineering of the street entrance and the home’s position on Bartley’s Hill.

“We had to go down as low as we could with the tunnel to get the right gradient to be compliant with Council’s requirements, while at the same time going up as high as we possibly could to meet the height of the home above,” Mr Walker said.

The result is a contemporary six bedroom, six bathroom home perfect for raising a family or entertaining guests.

Comprising 1409sq m of total living area, bi-folding walls blur the divide between the internal and external zones to extend an already lavish entertaining space centred by a Gaggenau and marble kitchen, with scullery and bar.

“The house lends itself to entertaining. There is a view from almost every room, even the entry level has a view of the city,” Mr Walker said.

The extensive list of luxuries attached to this property also features a theatre, study, billiard room, wine cellar, enormous storage space, two swimming pools, a gymnasium spanning half a level, a zen room, outdoor kitchen and two laundries.

The property is being marketed jointly by Stephen Weber and Tyson Clarke of Queensland Sotheby’s International Realty.

Tyson Clarke said, imposing scale and vast indulgences aside, the home has been built as a family estate and offers much versatility in this regard.

“Although the home offers the opportunity to entertain in a wonderful and extravagant manner, the sheer size of it is perfect for a family to grow in,” Mr Clarke said.

Mr Weber said the home’s location in Ascot, a well-established community with schools, shops and cafes all close by, makes 128 Crosby Road the ideal family home.