At home, I found the developer's website with a video of the interior. A vaulted entrance hall, painted a chilly blue. Long corridors and a chapel, littered with fallen plaster. A ward full of slanted light, marked for conversion into an apartment, the outlines of rooms chalked on the floor. Dining area. Lounge.
My pictures are less dramatic, but I'm glad I went there, stood in the grounds, before its old purpose is tidied away.
I never knew my grandmother, but this place did.