128 Crosby Rd, Ascot.The only element visible from the street of this Ascot home is a 50m tunnel that leads up to the palatial property.Built into the edge of Bartley’s Hill at Ascot, the property at 128 Crosby Rd, is hard to see into, but not to see out of, with views over the Brisbane CBD, across Moreton Bay and to Mt Coot-tha. The city skyline is visible from every room in the home.One of two swimming pools. The massive temperature controlled wine cellar.Owner Brett Walker (pictured) and his wife have owned the property since 2000. It was the location which really attracted them at the start. “There was an old pre-war home on the land there and we knocked that over and built this and it was completed in 2009,” Mr Walker said.He said the home was ideal for entertaining, particularly with the views as a backdrop.However, the recent arrival of their third daughter means the couple have decided to sell up in favour of something with a bit of a yard for their children to play in.You don’t even have to leave the home to go to the movies.More from newsMould, age, not enough to stop 17 bidders fighting for this home3 hours agoBuyers ‘crazy’ not to take govt freebies, says 28-yr-old investor3 hours agoMr Walker said the property was “all house” and they had bought another home nearby on a large block of land with a yard.The massive home is now being offered for sale for offers of more than $10 million.The entrance tunnel from the street leads to an underground bunker-like garage that can house up to 10 cars.Comfy, contemporary and cosy, this bedroom ticks all the boxes.From there, an internal lift services every level of the home, which has seven bedrooms.The main bedroom, which is on the third floor, has its own terrace.On the lower floor of the home are self-contained sleeping quarters suitable for guest accommodation.Brett Walker at his Ascot property where there is a 50m batman like tunnel leading to the entry of the home.The property features a theatre, study, billiards room, wine cellar, and storage space. There is a large gym room which covers half of one level of the home, and a zen room, plus two laundries.There is also a temperature-controlled wine cellar in the home, which has 1288sq m of internal living space on a 1120sq m block.The property has two-street access, from both Crosby Rd and Morgan St.The tunnel entrance to the home.It is well set up for entertaining, with marble features in the internal kitchen, which has a scullery and bar, and an outdoor kitchen to service the large outdoor entertainment spaces.The home has not one, but two, swimming pools – a large main pool plus a plunge pool in a courtyard that also has a cubby house.The latest technology was incorporated into the build, with ducted/zoned airconditioning, C-Bus home smart automation and a fully-alarmed security system.It is being marketed through Sotheby’s International Realty for offers of more than $10 million.