Shinmonzen Street, running east to west through the Higashiyama Ward of Kyoto, a city visited by tourists from around the world, still maintains the traditional atmosphere and charm of the old townscape. MOMOTARO JEANS' new flagship store, MOMOTARO JEANS KYOTO, is located in a corner of this tranquil neighborhood. The store is a renovated machiya (a type of traditional Japanese townhouse), designed by the architectural unit AS. "I didn't want to cut off the building’s history," said architect Masatoshi Shinagawa, who leads AS alongside Jun Aoki. We have explored the true meaning behind these words, and taken a look behind-the-scenes of how this unique space came to be.
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―It only opened half a year ago, but it already blends into Kyoto's townscape as if it has always been there.
Shinagawa: This building is actually a traditional machiya that's over 70 years old. Until recently, it was an actual home that had evolved over time to meet the needs of its residents. We want to preserve these traces of life while adding a new layer of history.
―I see. Now that you mention it, I can sense vestiges of that past here and there.
Shinagawa: Yes, indeed. Nevertheless, it has changed dramatically from its original form. When we first received the offer, it was already decided that we would be renovating a machiya in this location, so we said, "Let's actually go see it." At that point, it had been vacant for several years, with exposed dirt floors and a dusty, dark interior. But there was a small skylight—which we have worked into the current shop—through which light was streaming in, making me think it could become something attractive.
―Was this an unusual project for AS?
Shinagawa: Yes. This was our first hands-on project with a traditional Kyoto machiya, so we relied heavily on the expertise of our contractors. We worked with Kisyo, master craftspeople specializing in Kyoto machiya construction. They taught us techniques like ash leaching—a traditional method they used to transform these wooden pillars from pitch black with iron oxide to the lighter, natural finish you see today.
―It looks so natural, as if it looked like this from the beginning.
Shinagawa: If you look up when you're in the store, you can see some pillars and beams that are still pitch black, which is how you can tell. On the other hand, the pillars attached to the walls are new additions. They were originally bright, clean wood, but we applied kakishibu paint (traditional Japanese persimmon tannin) to give them a subdued color, ensuring they don't contrast too strongly with the older pillars. We learned each and every one of these techniques from Kisyo’s craftspeople.
―So even for people like yourself, who have been involved in architecture for years, this was quite a new endeavor?
Shinagawa: The MOMOTARO JEANS KYOTO project was completely different from our usual work. Unlike modern buildings with CAD-precise measurements, this historical structure revealed its secrets only as we peeled back its layers. The traditional construction methods were new territory for us, so we adopted an on-site collaborative approach with the carpenters. No matter how meticulously we prepared drawings at the office, they could never be followed exactly as planned.
―It's amazing that these pillars supporting the entire building are just resting on stones.
Shinagawa: When we first examined the building, I was shocked to discover several pillars that weren't even touching the ground—they were literally floating! When I mentioned this to local Kyoto architects, they just laughed and said, "That's perfectly normal here!" (laughs). What makes Shinmonzen Street special is how it preserves an authentic atmosphere where shops selling ezoshi (traditional illustrated storybooks) and antiques coexist with everyday local life. I wanted to take this atmosphere to heart. Though it's near the tourist hub of Gion, it maintains a distinctive tranquility. Preserving this unique character became central to our approach.

―The mood around Kyoto changes wherever you go, despite being one big city. Was it difficult for you to understand the unique character of this area?
Shinagawa: In terms of my connection with Kyoto, we had been working on the renovation of the Kyoto City KYOCERA Museum of Art for about four or five years, so we were familiar with this area. And although they differ greatly in scale and structure, both projects involve renovating buildings that are over 70 years old. In that sense, we felt a connection with the area.
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