The Fairy-tale Gingerbread House was the most directly related to fairy tales:
There is also a castles listing:
Les Duves in Belgium
And a fairy tale studio in LA
I also found this list of Fairytale Abodes: 15 Tiny Storybook Cottages.
The site says: "Humble and beautiful in their imperfection, little cottages with hand-made details call to mind the tales of the Brothers Grimm and other fairy stories, making us long for an adorable abode to call our own. These tiny houses provide inspiration to simplify and live smaller, and they’re definitely fun to look at. So make yourself a mug of hot cocoa, settle into some blankets and get ready to daydream about cozy snow-covered cottages brimming with the magic of storytelling."
And if you like these, a simple Google Image search reveals many more enchanting little cottages: