This late spring, Tokyo turns into a living textbook of architecture and everyday urban life.
First launched in 2024, the Tokyo Architecture Festival was created “to feel people through architecture and understand the city through its buildings”, opening spaces that are usually off-limits so architects, locals and visitors can finally share the same inside view of Tokyo.
The third edition, Tokyo Architecture Festival 2026, runs from May 16 to 24 and rallies around 151 buildings across neighbourhoods including Ueno, Nihonbashi, Marunouchi, Minato and Shibuya, spanning embassies, historic schools, corporate HQs, hotels and private homes. Around 70 of these are normally closed to the public but will unlock their doors for nine days of special openings, joined by more than 120 architect‑, curator‑ and researcher‑led tours, exhibitions, kids’ workshops and even architecture‑themed cruises – turning Tokyo into a city‑wide festival of built form.
#1 Mitsui Main Building, Nihonbashi
Right at the main crossing in Nihonbashi, the Mitsui Main Building is one of Japan’s first office blocks to be designated an Important Cultural Property and is often cited as a textbook example of early modern commercial architecture. Designed by an American architectural team, its colonnaded stone facade projects old‑school financial gravitas while the detailing stays surprisingly restrained rather than showy. During the festival, parts of the interior that are normally staff‑only will open on guided tours, giving you a close‑up look at how this brand of “understated grandeur” once defined the mood of Tokyo’s business district in the early twentieth century.
#2 Tokyo Station Hotel & Marunouchi Red‑Brick Station Building, Marunouchi
Tokyo Station’s Marunouchi red‑brick building is a national icon in itself, but inside it hides the Tokyo Station Hotel – a heritage property woven into one of the city’s busiest transport hubs. For the festival, tours will take you into areas that are usually hard to access on your own, including the richly decorated domes, long hotel corridors and guest rooms created within the original roof structure. It’s one of the few places where railway history, imperial‑era urban planning and contemporary hotel design all overlap in a single building, and a neat example of how Tokyo handles its most photographed landmarks.
#3 Embassy of Canada, Aoyama
Tucked into the Aoyama area, the Embassy of Canada is partly open year‑round, but the festival gives you a rare chance to explore the complex in a more structured way. The building blends offices, a gallery, landscaped garden and event spaces; the architecture and interiors quietly channel North American modernist vibes while speaking to the surrounding Tokyo streetscape. Join a guided tour to see how an embassy building balances security, openness and cultural programming – and to glimpse yet another facet of Tokyo’s life as a genuinely international city.
#4 SunnyHills at Minami‑Aoyama, Minami‑Aoyama
Designed by Kengo Kuma, SunnyHills at Minami‑Aoyama wraps a Taiwanese pineapple cake brand in an intricate timber lattice that looks like a woven basket dropped into a side street. The facade uses traditional jigoku‑gumi joinery with no visible metal fittings, creating a porous skin where light, air and scent can filter through the structure. During the festival, special tea‑time tours let you study the timber grid and its shifting shadows up close, then sit down with sweets and tea – a gentle way to experience how architecture and hospitality can share the same warm, crafted atmosphere.
#5 NOA Building, Roppongi / Azabudai area
Often described as a late masterpiece by “philosopher‑architect” Seiichi Shirai, the NOA Building is a stark outlier in Tokyo’s skyline of glass towers. Its dark, sculpted mass, sharply cut brick surfaces and minimal openings give it a mysterious, almost monolithic presence amid the bright façades of Roppongi and Azabudai. Normally closed to the public, this office block will partially open during the festival so architecture fans can finally get near its inward‑looking facade and feel just how powerful a deliberately introverted building can be.
#6 Keio University Old Library, Mita
As one of Japan’s earliest modern universities, Keio’s Mita campus has long been defined by its Old Library, a red‑brick and stone structure with tall windows and a dignified, almost European academic profile. The building’s exterior volumes and classical details set the tone for the campus, while inside, book stacks, arches and timber staircases layer on a strong sense of scholarly history. The festival’s special opening invites the public into spaces usually reserved for students and researchers, letting you literally walk through one of Tokyo’s most symbolic “houses of knowledge”.
#7 Kanda Port Building, Kanda
Kanda Port Building is a compact but ambitious hub in the Kanda‑Nishikicho area’s ongoing neighbourhood‑renewal project, bringing together gallery spaces, a café, bookstore and co‑working areas. Rather than going for a flashy icon, the architecture focuses on how stairs, terraces and shared interiors can gently anchor new cultural rhythms in an everyday business district. During the festival, tours led by the design team guide you from facade to furniture, showing how a small‑footprint mixed‑use building can carve out pockets for conversation, lingering and community life
#8 Izutsuya Machiya Restoration Tour, Shintomicho
Surviving both war and earthquakes, Izutsuya is a rare 100‑year‑old copper‑clad machiya townhouse just off Shintomicho station, now hemmed in by modern mid‑rises. It’s instantly recognisable by its unusual gambrel roofline and painstaking kikkō‑bari hexagonal copper cladding – a craft technique with almost no living successors. For the festival, the architect behind its recent restoration, Satoshi Itasaka, leads tours that move from facade to interior, exploring how Taisho‑era doors, windows and lighting were revived and how structural reinforcement and smart‑home tech were woven in to carry the house into its second century.
#9 Nihombashi Mitsukoshi Main Store & Mitsukoshi Theater, Nihonbashi
Just a block from the Mitsui Main Building, the Nihombashi Mitsukoshi Main Store turns the idea of a department store into a grand urban living room where shopping, art and craft meet. Inside, you’ll find a soaring central hall, sculptures, murals and art deco‑inspired details running through the elevators and interior finishes, while the upstairs Mitsukoshi Theater preserves the rich scale and ornament of a Showa‑era playhouse. With festival guides, you’ll switch from “browsing the racks” to “reading the rooms”, seeing how Tokyo layers cultural space into a working retail icon.
#10 Tokyo University of the Arts, Red‑Brick Building No.1, Ueno
In Ueno, the Tokyo University of the Arts Red‑Brick Building No.1 is steeped in Meiji‑era academic symbolism and has formed the everyday backdrop for generations of art and music students. Its red‑brick walls and crisp white trim create a rhythmic, almost cinematic facade, while simple corridors and staircases stitch together studios and classrooms inside. During the festival, special access and campus tours let visitors experience how an art school uses architecture to project its identity, all without disrupting the students’ daily routines.
