I'm reminded a lot of Spiderwick Chronicles, a young adult series by Holly Black and Tony DiTerlizzi. I followed it because I'm a fan of DiTerlizzi and his Brian Froud/Rebecca Guay inspired art, and have a whole shelf of books he's illustrated. The series itself was pretty cool and got a summer film during the era of Harry Potter, Golden Compass, and Lemony Snicket. There's also an audiobook collection narrated by Mark Hamill, which I have but never really listened to... might be a good way to inspire a fairy character!
The first Spiderwick series is loosely set around an old house like the one you have. It's been inherited by a divorcee and her three kids after the previous owner, a loopy old homebound aunt who purported to see fairies, was institutionalized. The premise is that the titular character and the kids' great-grandfather, Arthur Spiderwick, discovered the world of fairies and began to document it as a naturalist. His notes, which lay hidden for decades, are wanted by the story's evil ogre because he believes they contain the secrets of diverse fairykind (and fairies have a lot of secrets).
I would love to play a floral sprite in the vein of some of Spiderwick's fantastically creative creeps, and the tiny world of mouse steeds and leaf hammocks is something I've not yet had a chance to write about on E. During the summer I go out and help college students survey insect and plant life, and I've found I can literally talk for days about any given order of insect. Even though I'm working in water sanitation now, my heart is always going to be on a blade of grass with a ladybug, out in the field.