Sanchoen is a tea shop that was an minor landlord holding.  The old part of the compound was rebuilt in 1818, the tea house was built after a major earthquake in 1896 and various warehouses (kura) and other parts were added at various times.  The front building, the shop, was rebuilt about 50 years ago …

The first several posts are descriptions of the buildings and gardens.  Sanchoen is a tea shop with a formal Japanese garden and several (actually, nine) additional gardens of various kinds.