Two Tokyo listings can look equally appealing for different reasons. One is a bright, newer flat near the station. The other is older, cheaper, and bigger, with a balcony you like. Neither photo tells you how the place will feel in winter or what the summer bills will look like.
Choosing a rental shapes how you use energy and manage waste at home, while its location can affect whether walking, cycling, or public transport can fit your routine. You can adjust your habits after moving in, but changes to windows and fixtures may need the owner’s approval.
The checks below cover what to confirm before booking and during the viewing.
Start with the journeys you make every day

The apartment’s location affects your regular travel, and you can’t change it after moving in. Check whether the address makes walking, cycling, and public transport practical for your routine.
Map your normal week. Write down the trips you make most often: work or campus, the supermarket, the gym, and friends you see regularly. Then test each candidate address against that list. A flat beside a station but two transfers from your office can mean a longer commute than one slightly farther from a platform on the right line. Check the whole journey, including transfers and the walk at each end.
Walk the actual route. Advertised walking times to the station are a useful guide, but walk the route yourself at the hour you would use it. Note hills, crossings, and whether there is a food shop on the way home. If you cycle, ask about bicycle parking at the building and check whether you can access it easily.
Build a workable shortlist. Once you know which lines and areas suit your week, narrow by budget and size. When you browse Tokyo apartments for rent through Tokyo Portfolio, compare the advertised monthly rent in yen, floor area in square metres, and walking time to the nearest station. Confirm those details and current availability with the agent before booking a viewing.
Check comfort and energy performance at the viewing

Listing photos offer limited clues about insulation and running costs. Ask for performance information, then use the viewing to identify questions that still need answers.
Ask for the label. Japan’s energy-performance labeling system sets advertising requirements for newly built homes. For existing buildings, MLIT (the Ministry of Land, Infrastructure, Transport and Tourism) recommends displaying a label rather than requiring it. An older apartment’s lack of a label tells you little about its insulation, so ask what other information is available.
Where a label exists, it shows energy-consumption performance as stars and insulation performance as a grade. It also states whether the performance was self-assessed by the seller or rental business or evaluated by a third-party assessment body. Check which assessment applies before treating a displayed label as independent certification. This gives sustainable renting in Tokyo a more concrete basis than a green-sounding building name.
Look closely at the windows. MLIT describes insulation through how readily heat escapes a building and how readily solar heat enters it. In everyday terms, will the apartment hold warmth in winter and limit heat in summer? Tokyo Metropolitan Government guidance points renters toward windows, doors, and walls. At the viewing, ask whether the glazing is single or double, look for shading, and note condensation marks around frames. Ask whether the windows have been upgraded and whether supporting paperwork exists.
Check the equipment. Note the air conditioner’s age and ask when it was last serviced. Find the ventilation controls, and look for damp stains or smells around windows and closets. If solar panels are advertised, ask whether their electricity serves your unit and how that appears on your bill. These checks can help you decide what needs further explanation; they don’t replace a professional assessment.
Tokyo also has an owner-facing energy-assessment and insulation-retrofit program. Ask the agent whether the owner has completed or planned improvements. The owner or an eligible representative handles the application, so renters should raise the possibility with the owner rather than assume personal eligibility.
Treat bill estimates as estimates. Some labels show an estimated annual utility cost. MLIT calculates this under set assumptions and warns that actual bills differ. Your usage, appliances, and supplier contract affect what you pay. Use the figure as a comparison aid and allow for those differences when planning your budget.
Make sure low-waste living will fit
Check what comes with the apartment. RISE’s rental equipment guide notes that most rental apartments and houses in Japan are unfurnished. Ask the agent for an inventory and measure the spaces for a fridge, washing machine, and bed before buying anything. Check whether your existing furniture will fit, and consider secondhand options for anything missing. Listings usually give floor area in square metres; bring a tape measure to check the walls and spaces your furniture needs.
Find the waste instructions. Ask for the collection guide for your address and the building’s rules about where and when to put waste out. Minato City, for example, directs residents to book large-item collection online or by phone through its designated center. Obtain the instructions for your own ward or city before disposing of furniture. At the viewing, check whether the kitchen has room to separate waste according to the local rules.
Also find a place for a drying rack and ask whether the lease allows laundry on the balcony. Consider where the rack will go when you need to dry clothes indoors, without blocking access to windows or furniture.
Check permissions before making changes. RISE’s restoration guidance advises getting landlord permission before the wall treatments it discusses. Check the lease and obtain approval before changing fixtures or surfaces. Plan around items you can take with you, such as curtains, rugs, and lamps, and ask before attaching anything to the building. Once you know what fits, these portable decor ideas can help you make the space feel like yours without permanent changes.
Before you leave a viewing, run through this list:
- Can I reach my regular destinations without long transfers?
- Is there an energy label, and is it self-assessed or third-party evaluated?
- Have the windows been upgraded, and is there evidence of recurring condensation?
- Which appliances are supplied, and what sizes will fit?
- Where do bins, drying racks, and bicycles go?
- What changes need the landlord’s approval?
FAQs
Do I need a newly built apartment?
No. An existing apartment may lack a label because display is recommended rather than required. Ask about insulation, window upgrades, and any owner retrofit work instead of judging by age alone.
What should I ask about the windows?
Ask whether the glazing is single or double, whether the windows have been upgraded, and whether documents are available. If you see condensation marks, ask whether moisture has been a recurring problem and how the apartment is ventilated.
Can I make changes after moving in?
Check your lease and get the landlord’s approval before changing walls, fixtures, or surfaces. Confirm removal and restoration requirements before installing anything, including products described as removable.
Does an energy label predict my exact bill?
No. MLIT calculates the label’s utility-cost estimate under fixed assumptions. Actual bills depend on your usage, equipment, and supplier contract.