千代田区
The Imperial Palace ward. Government offices, embassies, and Akihabara. Expensive but ultra-central. Few residential options but they're high-end.
Based on MLIT government transaction data (2025-Q2). Higher yield = landlords more motivated to fill vacancies.
Based on a 1K at ¥141,215/month
42% of Chiyoda listings have zero key money — your actual cost could be lower.