Yeah, I assume so! Their plot is about 6 inches higher than ours, if they stood on their door step they'd easily look in.
where the door is and the fence at the office window i wouldnt worry to much about, i cant really see them peeking over the fence to purposely look into the window, you could always fit some trellis ontop of the fence.
the office which will be a bedroom, it looks like its already quite close to a building/wall of some sort, are they planning on building closer?