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National Diet Building

Government and Civic Buildings

The National Diet Building stands in central Tokyo and has housed both houses of Japan's national legislature, the House of Representatives and the House of Councillors, since its completion in 1936 after roughly seventeen years of construction. Its design was chosen through a public architectural competition held in 1918, and the finished building took the form of a symmetrical structure with two nearly identical wings flanking a stepped, pyramidal central tower, a distinctive silhouette unlike the classical domes common to other national legislatures of the period. Every stone used in the building's construction was quarried within Japan, with granite drawn from quarries across the country's prefectures, a deliberate choice to make the building a showcase of Japanese materials and craftsmanship. The building survived the bombing of Tokyo during the Second World War largely intact and remains the seat of the Japanese Diet today.

Facts
Building Type
Legislative Building 1
Location
Nagatacho, Chiyoda, Tokyo, Japan 1
Completed Year
1936 2
Height (m)
65.45 1
Classification
Standing Status
Standing 1
Building Type
Building Type (category)
Government / Parliament Building 2
Connections

Has Building Type

Parliament Building, Concepts

Entity-backed identity for the building-type enum value this building already carries, resolved to an architecture concept by an explicit value-to-entity map (phase 3 bucket conversion, docs\design_entity_backed_browse_buckets_20260928.md). The building-type fact itself stays on the building unchanged.

In Style

Art Deco, Styles and Movements
Source National Diet Building - Wikipedia
In the Other Atlases
  • Also in Geography Atlas: Japan, located there.
Sources
1. National Diet Building - Wikipedia
  • General information, first sentence
    is the building where both houses of the National Diet of Japan meet.
  • General information, second sentence
    It is located at Nagatacho, Chiyoda, Tokyo.
  • Infobox, Completed field
    Completed: 7 November 1936
  • Central tower section
    The central tower measures 65.45 meters (214.7 ft) in height
  • Entity description and the lead/infobox of the Wikipedia article
    The National Diet Building stands in central Tokyo and has housed both houses of Japan's national legislature, the House of Representatives and the House of Councillors, since its completion in 1936 after roughly seventeen years of construction. Its design was chosen through a public architectural competition held in 1918, and the finished building took the form of a symmetrical structure with two nearly identical wings flanking a stepped, pyramidal central tower, a distinctive silhouette unlike the classical domes common to other national legislatures of the period. Every stone used in the building's construction was quarried within Japan, with granite drawn from quarries across the country's prefectures, a deliberate choice to make the building a showcase of Japanese materials and craftsmanship. The building survived the bombing of Tokyo during the Second World War largely intact and remains the seat of the Japanese Diet today.
  • In Style: Art Deco, infobox architectural_style field: Art Deco
View the Source
2. Wikidata: National Diet Building
  • Wikidata Q1338856, class allow-list match (w-wdresolver-0926)
  • Wikidata Q1338856, P571 claim (w-bbfill-artsarchag-0926)
View the Source
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