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Immediately outside will be a patio, long term possibly one that's covered by a pergola with wisteria on it as a bit of screening/summer shade. The garden is west facing and people with similar setups have suggested they can get quite warm in summer.
Where the compass is will be a seating area, probably with a chair or sofa against the wall with the non-opening window in it.
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Needs a bit more context; what do have/plan to have immediately outside? Patio/landscaping/funky business?
How are you planning on laying out/using the space inside? Where's the kitchen & dining area going? Bench seating?
Figure out how you'd like to use the opening first, then work backwards to spec glazing to suit.