Tokyo to Ban Overhead Power Lines in New Developments Amid Earthquake & Disaster Concerns
Tokyo’s metropolitan government is considering an ordinance that would prohibit overhead power lines in new housing developments, a move aimed at improving disaster resilience and aesthetics. The proposed rule, announced in late September 2025, reflects ongoing efforts to mitigate risks associated with Japan’s frequent natural disasters and modernize the city’s infrastructure.
While underground power lines are more expensive to install - costs can be several times higher than overhead lines – they are less vulnerable to damage from earthquakes, floods, and landslides. Accessing and repairing subterranean grids can be hampered by debris after disasters, delaying restoration efforts and hindering residents’ return home.
Currently, the Tokyo government offers subsidies to developers who choose to install underground lines, up to 40 million yen depending on project specifics. Though,Tokyo Governor Yuriko Koike has expressed dissatisfaction with the current pace of conversion,stating,”We will be taking measures to accelerate the reduction of existing overhead power lines and prevent the installation of new ones.”
Some developers continue to opt for overhead lines despite the subsidies, suggesting the financial assistance isn’t always sufficient to cover the full cost of underground systems. the ordinance could potentially increase housing costs as developers pass along these expenses to renters and homebuyers.
The Tokyo Metropolitan Assembly is accepting public comments on the proposed ordinance until October 24, after which a final decision will be made. The initial phase will focus on areas within Tokyo’s 23 wards inside Route 7, regions particularly vulnerable to earthquake damage, with plans for eventual expansion citywide.
Source: Mainichi Shimbun via Jin, NHK News Web
