This is a small store (closed, for the moment – no interior, sorry) inspired by some shops in the historical quarter of Ise (Mie prefecture).
Unfortunately, I don’t find the inspiration source for this machiya on my saved maps anymore (sorry! 申し 訳 ありません！). However, I’ve found some of the inspiration photos used for it, like this house or this one (both are inns located in Kyoto).
This example is a separate house, but also a dependence of the restaurant seen in MS_Machiya_16. Also the real world houses that inspired the main restaurant building have a dependence like this one nearby. Actually, the dependence is located in the middle of the two buildings (see here for the seafood restaurant side and here for the soba one) .