If your shed is 310 cm wide, then the garage will not fit.
It would then have a maximum external dimension of 250 cm, so a maximum internal dimension of 215 cm, and no car fits in there.
Some value is also incorrect or the position on the property is not right.
17 m width - 310 cm on the right as edge development - 930 cm house width = 460 cm remaining width ... visually there should be more greenery on the left than the strip on the right of the house.
A complete site plan would also be interesting .. with visible neighboring properties, etc. South terraces are not always the main goal, better are east and west-north-west terraces. Light should come from the south, especially in winter.
And, for assessment, it is always useful to present house floor plans with your own furnishing ideas, because only then can you really judge whether these plans work. For example, I consider 360 cm in the living area quite sufficient ... it depends on the TV size. The distance no longer has to be as large as with the good old tube TVs.
It is also always useful to consider the planned sill height of the windows .. a sofa in front of a floor-to-ceiling window is rather pointless.