http://www.katrinaleechambers.com/slowly-updating-our-pool-area/ Have a look at this blog, their pool area looks great but very doable.

we can't read the dimensions on the plans but it appears that the block isn't flat so the placement of access to the rear is affected by the slope and the reason for access...do you want/need to have an extra garage with driveway into the far back yard or just vehicle access for occasional gardening or pool maintenance? and this plan has the most exposure to the east and west which, depending on your climate, can be the most challenging to manage ...are there any changes possible to the plan or have you considered other plans for this block?

I would talk to your pool builder about the pool detail. They are the experts.

for the banquette to be wide enough to lay on it would need to be at least as deep as a narrow single bed which makes it too wide to sit on comfortably without a very thick back rest or a giant pile of cushions to clutter up the space...why not consider a back and sideless freestanding daybed so the primary purpose is laying down and the sitting to dine is only short term and doesn't need a backrest ....this example or similar with taller legs would be a simple economical way to add the day bed feeling without expensive built ins and two along the window wall could look quite inviting with a simple throw and scatter cushion