Another Art Nouveux house, I posted about one the studios on Talgarth Road, in London a while back.
This is one of those images you find on Pinterest and think, ooh where is that, and find no original link or anything. Which can be very annoying. However, when it comes to finding the origins of images on the internet, I am quite a good detective.
This house is positioned on Rue du Lac in Brussels and was designed by Ernest Delune (1859-1947), However that is as far as I got, no pictures of the interior or anything. Boooo.