For stays of one month or longer in Japan, renting a furnished apartment (monthly mansion) or a camper is more cost-effective than extended hotel or Airbnb stays. In Ota Ward, 30 minutes from Haneda Airport, studio units (1R/1K) rent for 100,000–180,000 yen per month, often including utilities and Wi-Fi; initial costs for cleaning and agency fees are around 20,000–50,000 yen. Larger family apartments can exceed 200,000–300,000 yen per month but offer a kitchen and washing machine. Contracts are available from 30 days. Alternatively, camper rental starts at 150,000–200,000 yen per month for a compact camper, 250,000–350,000 yen for a converted van (e.g., HiAce), and 300,000–450,000 yen for a full cab conversion (after a 20–30% long-term discount). Additional costs include insurance and deductible (tens of thousands of yen), fuel, tolls, and campsite fees.
