Tokyo investment property due-diligence checklist

Why due diligence is different in Tokyo

Tokyo is not one market — it is dozens of ward and neighborhood micro-markets that behave very differently on resale. A unit can look cheap per square metre and still be hard to sell, because liquidity is driven by the specific station, the walk time, the building's age band and the management's financial health rather than by the headline price. The job of due diligence is to separate a genuinely under-priced unit from one that is cheap for a reason.

Most of the decision-making information exists, but it is fragmented across the registry (登記簿), the building's important-matters explanation (重要事項説明書), the management association's accounts and the local hazard map. Buying remotely, you cannot walk the street or read the room. A structured scorecard is how you compensate: every property is measured on the same dimensions, so a unit you have never visited can be compared fairly against one you have.

Treat everything below as factual due-diligence guidance, not tax or legal advice. Where tenure, tax or zoning is decisive, we coordinate confirmation through the licensed brokerage partner and, where appropriate, a Japanese tax or legal professional before you commit.

Location signals: ward, neighborhood & station

The single biggest driver of future resale is location liquidity — how readily a comparable unit changes hands in that ward and neighborhood. Central wards and established residential pockets tend to clear faster than peripheral ones, which matters enormously the day you want to exit.

Distance to the nearest station is quoted in walk-minutes (徒歩◯分), calculated at 80 metres per minute. The difference between a 4-minute and an 11-minute walk is not cosmetic: it moves both rentability and resale price, and the gap usually widens in a softer market. Verify the quoted minutes against the actual route, not a straight line, and note which lines the station serves.

• Ward and neighborhood resale liquidity — how often comparable units actually trade
• Walk-minutes to the nearest station, checked against the real route
• Which train lines serve that station, and the commute to major hubs
• Whether nearby supply (new towers, redevelopment) could compete with your exit

Tenure & the building: freehold, leasehold & the 1981 line

Confirm tenure before anything else. Most Tokyo apartments are sold freehold (所有権), where you own an undivided share of the land under the building, but some are leasehold (借地権), where you own the structure and pay ground rent to a separate landowner. Leasehold can be perfectly sound, but it changes financing, ongoing cost, resale appeal and exit — it is never something to assume. Always read the tenure off the registry, never off the listing summary.

Then check the building's age and seismic standard. Japan tightened its earthquake code with the 新耐震 (new earthquake standard) that applies to buildings whose construction was approved from June 1981 onward. Units in pre-1981 旧耐震 (old standard) buildings carry materially more structural and resale risk, can be harder to finance, and may face costlier future retrofits. A pre-1981 building is not automatically disqualifying, but it raises the bar on the engineering and the price.

• Tenure confirmed from the registry: freehold (所有権) or leasehold (借地権)
• For leasehold, the ground-rent terms, remaining lease and landowner consent rules
• Construction-approval date relative to the June 1981 新耐震 seismic cutoff
• For pre-1981 旧耐震 buildings, any seismic retrofit history or assessment

Management health: fees & the repair reserve

An apartment is only as healthy as the association that runs the building. Two monthly figures matter: the management fee (管理費), which covers day-to-day running, and the repair reserve fund contribution (修繕積立金), which saves toward major periodic works such as roof, exterior and pipe renewal.

The danger sign is an under-funded reserve. If the accumulated 修繕積立金 is thin relative to the building's age and the long-term repair plan (長期修繕計画), owners can face a sudden special levy, a steep increase in monthly contributions, or deferred maintenance that drags on resale. Read the association's balance, the planned works schedule and any record of arrears among owners — a building where many owners are behind on payments is a building with a problem.

• Monthly management fee (管理費) and how it compares to similar buildings
• Repair reserve balance (修繕積立金) versus the building's age and repair plan
• The long-term repair plan (長期修繕計画) and the date of the next major works
• Any history of special levies, planned fee increases, or owner arrears

The numbers: price per m², yield & costs

Anchor the asking price to resale comparables expressed as price per square metre (㎡単価) for similar units in the same building and neighborhood. This is the most honest way to tell whether you are paying a fair price, a premium, or genuinely below market — and it travels across units you cannot visit.

On the income side, look at rental demand and realistic gross-to-net yield for that unit type, not the optimistic headline. If you are weighing short-term rental, note that licensed minpaku operation is tightly regulated — it depends on the building's own by-laws (many associations prohibit it), local rules and registration, so feasibility must be confirmed building-by-building, never assumed.

Finally, budget the full cost stack. One-off closing costs in Tokyo typically run about 6–8% of the price (acquisition tax, registration and judicial-scrivener fees, brokerage commission, stamp duty and related items), on top of which sit ongoing management fees, the repair reserve, property tax and any management or vacancy costs. A yield that ignores these is not a real yield.

• Price per m² (㎡単価) against recent comparables in the building and area
• Realistic net rental yield after fees, reserve, tax and vacancy
• Short-term-rental (minpaku) feasibility checked against building by-laws and local rules
• Closing costs budgeted at roughly 6–8%, plus the full ongoing holding cost

Hazard & exit: risk you can see in advance

Pull the local hazard map (ハザードマップ) and check the address for flood, river-overflow, storm-surge, landslide and liquefaction exposure. Tokyo publishes this at ward level; a property in a marked flood or liquefaction zone is not necessarily off-limits, but it affects insurance, financing and resale, and you want to price that in rather than discover it later.

Underlying every signal above is exit risk: the honest question of who buys this unit from you, and how quickly, when you decide to sell. A unit that scores well on liquidity, walk-time, tenure, seismic standard, reserve health and price per m² is a unit with a wide pool of future buyers. One that fails several of those dimensions can still cash-flow today and yet be slow and costly to exit — which is exactly the outcome a scorecard is built to catch before you commit.

• Flood, storm-surge, landslide and liquefaction status on the ward hazard map (ハザードマップ)
• How any hazard exposure affects insurance, financing and resale
• A clear-eyed view of the likely future buyer pool and time-to-sell
• An overall exit-risk read that ties every other dimension together