The University of Tokyo Hongo Main Gate and Guardhouse

The Gate That Is Not the Red Gate

The Hongo Main Gate and Gatehouses of the University of Tokyo (東京大学本郷正門及び門衛所, Tōkyō Daigaku Hongō Seimon oyobi Mon'eijo) is a granite-faced ceremonial gate with flanking guardhouses on Hongo-dori in Bunkyo Ward, Tokyo, completed in 1912 and entered on Japan's register of Tangible Cultural Properties on 9 October 1998.

Visitors arriving with a guidebook often walk straight past it. The building they have come to photograph is the Akamon, the vermilion gate a few hundred metres south, which was built in 1827 for a daimyo household and predates the university on this site. The Akamon is the famous one. The main gate is the one the university actually uses, and it is the one on the cultural property register under this entry.

The design came out of a specific institutional moment. Faculties had moved to Hongo from Kanda-Hitotsubashi during the 1880s, and the campus needed a proper front on the public road. The eighth president of Tokyo Imperial University, Hamao Arata, set the brief. The basic design was by Ito Chuta, professor in the architecture department; site management is credited to Yamaguchi Kokichi, head of the university's building office.

Ito is an unusual figure to find at the head of a university gate project. He is better known for arguing that the swelling columns of Horyuji shared an ancestry with Greek entasis, for his travels across China and Central Asia, and for buildings such as Tsukiji Honganji. He held that Japanese architecture should evolve rather than imitate, and this gate is a small, dense demonstration of the argument.

Japanese Form, Western Structure

The gate follows the kabukimon type, a traditional Japanese form in which two heavy posts are tied together by a horizontal beam, the kabuki, running through them near the top. No roof. The form is old and unambiguously domestic in origin.

What Ito did with it was to hollow it out and rebuild it in modern materials. The posts have steel cores faced with thick slabs of granite, quarried at Inada in what is now Ibaraki Prefecture. The doors combine several grades of iron. The university describes the result as an object of Japanese taste built with Western technique, which was the governing formula of the period, and the gate makes the formula legible in a way few buildings manage.

The ornament rewards standing still for a minute. Along the top of the kabuki beam runs a sun rising between auspicious clouds. The door panels carry seigaiha, the stacked concentric arcs that represent breaking waves, set against vertical bars and arabesque scrollwork. All of it is worked in metal, all of it derived from motifs a Japanese viewer of 1912 would have recognised immediately from textiles and lacquer rather than from architecture.

The pieces now in place are not the originals. In 1988 the large doors and the kabuki beam were replaced with aluminium-alloy replicas, and the university reports that the originals are kept in storage at its Komaba campus. Anyone examining the metalwork closely should know they are looking at a careful copy of a 1912 design rather than the 1912 fabric itself.

The gatehouses stand to either side in mirror symmetry, low buildings whose gable ends show a mukuri roof, the convex profile that curves gently upward at the ridge instead of sagging in the concave line more common on temple roofs. The Agency for Cultural Affairs record gives the registered structure as reinforced concrete, single storey, copper-sheet roofing, building area 46 square metres. Some accounts published by the university newspaper describe brick walls and Shirochoba stone in the guardhouses; the Agency figure is the authoritative one, and the difference may reflect facing materials rather than structural fabric.

The Agency's description notes that the granite gate is said to have been designed around the kabukimon as a base idea, and that the gate and gatehouses together hold to traditional formal patterns while pursuing a character belonging to the new era. The registration criterion applied was that the work is a model of its kind in design terms, and it is classified not as a building but as a structure of other type.

Seeing It Properly

Approach on foot along Hongo-dori rather than emerging from the campus, because the gate was composed to be read from the street. From the pavement the symmetry of gate, brick wall and paired guardhouses resolves into a single frontage. Walk south along the same pavement and the long brick boundary wall continues towards the Akamon; sections of it date to the 1890s and around 1910, and the two phases differ subtly in bond and colour.

The gate frames the ginkgo avenue and, at its far end, Yasuda Auditorium about 300 metres away. That view is the reason people stop here in late November, when the ginkgos turn. The gate itself photographs best in the morning, when the granite faces the light.

Entry is free and requires no application for parties of fewer than about fifteen. Groups of fifteen or more register through the university's online form at least seven days in advance. General visiting hours are 7:00 to 18:00. The main gate keeps those hours on weekdays; on Saturdays, Sundays and public holidays the main leaves are closed and pedestrians use the small door beside them, which is open far longer. The campus is closed to visitors on the national entrance examination days in mid-January and on the university's own second-stage examination days in late February.

Outdoor photography is permitted for personal use only; the university asks that images not be published in print or on social media. There is no visitor parking, and tour buses are asked not to stop on the surrounding streets, the area around the main gate having become a particular problem. Nearest stations are Hongo-sanchome on the Marunouchi and Oedo subway lines, about eight minutes on foot, and Todaimae on the Namboku line, about five.

One thing to check before travelling: the Akamon has been under seismic strengthening work since 2025, with completion announced for around September 2027, so the two gates cannot currently be photographed as a pair.