Many up-market homes today feature a smaller pool as part of the deck. This type of design is an excellent choice for several reasons, but mainly for its convenience to the main house. You can simply emerge onto the deck and dive into the pool on a warm morning or evening. It is often more sheltered from the wind and more private.
A pool in the deck is one of the great features Sam Sorgiovanni has used for many of the luxury superyachts such as Nirvana and others he has designed. On a yacht, there is no other place for the pool but on the deck; in a luxury home you have a choice of deck or garden and both are good, but the deck pool offers many advantages. As mentioned above, it offers a sheltered place that is also more private, but the sheer convenience of having your pool as part of the deck means it can easily be included in entertaining guests as well.