How Tokyo Was Built and Evolved Over Time

Tokyo’s built form is the product of fire, earthquake and a building code.

The wooden city

Edo was built almost entirely of wood, with tiled or thatched roofs and paper screens, in districts separated by firebreaks that never worked. Nothing substantial survives from it in the city proper, which is why visitors looking for old Japan go to Kyoto.

Earthquake engineering

After 1923, and again after later quakes, Japan developed some of the most advanced seismic building standards anywhere. Modern Tokyo towers sit on base isolation bearings that let the ground move underneath them, or carry tuned mass dampers, and the Skytree borrows a principle from pagoda construction with a central column that moves out of phase with the outer structure. Buildings sway visibly in a quake by design.

Short lives

The average Japanese house is demolished after about thirty years and rebuilt. Land holds value; buildings depreciate to nothing. The result is a city that renews itself continuously and has very little architectural continuity.

Density without height

Much of Tokyo is low-rise, built to the plot line on very small parcels, with narrow lanes and no setbacks — which is why the residential streets feel intimate despite the population.

No street names

Addresses work by district, block and building number, with the numbers often assigned in order of construction rather than position, and most streets have no name at all. It made the city genuinely hard to navigate before smartphones, and it is why every shop and bar publishes a small map and why police boxes exist partly to give directions.

The station city

Development clusters around rail stations, with department stores and shopping built over and under them by the railway companies that own them.