http://forum.square-enix.com/ffxiv/t...ry-(10-30-2013)

1:42:37
Q: Will we be able to see the sunlight coming through the windows and also be able to view the scenery from within a house?

A: We've made adjustments for the amount of light that enters though the windows, but you will not be able to see the scenery outside. I understand there have been requests for this, but there are a lot of other houses outside and a lot of people passing by, so if we were to make this possible it would cause an increase in the limitations for the objects that can be placed in your houses. We decided to prioritize allowing you to place as many things in your house as possible.

tl;dr: Read Live Letters.