FOR INTERNATIONAL INVESTORS

Evaluate any Japanese property with the official data: land prices and tax records, read and explained for you in English.

Built on official MLIT transaction records, IPSS demographics, and official land valuations.

Make Japanese real estate easier to understand, compare, and evaluate.

Tatemono IQ reads the Japanese documents behind a property and returns one clear page: yield, comparables, and the risks flagged before you commit.

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2-week free trial · No credit card required

The price check the ads promise

Real evaluation of a Tokyo listing in Azabu-Juban, Minato-ku.

Tatemono IQ Assessment for an Azabu-Juban condo: advertised gross yield 7.20% vs calculated 4.73% on the same rent and price
7.20% → 4.73%
advertised vs calculated gross yield

The listing advertised a 7.20% gross yield. On the same rent and asking price, Tatemono IQ calculated 4.73%.

Investing in Japan can feel harder than it should.

For international investors, the challenge is not only finding opportunities. It is understanding them well enough to evaluate them with confidence. Language, market conventions, fragmented materials, and inconsistent explanations often create friction before trust.

Information is fragmented
Property materials are hard to interpret
Local context is not always obvious
Risk is easy to miss
Comparison is harder than it should be

The biggest risk isn't a bad property. It's a decision you couldn't check.

Investment regret usually comes from a number you couldn't verify or a risk you couldn't see, not from a lack of data. Tatemono IQ puts the evidence behind every figure, so you can check the work, not just the conclusion.

More data doesn't make a better decision. Being able to check it does.

What it does

Tatemono IQ reads the Japanese-language documents behind a property, pulls in official land and tax data, and gives you one clear page per property: yield, comparables, and the legal and structural risks flagged before you commit.

Translate & structure

Reads and structures the Japanese documents (maisoku, listing) into one view.

Score & rank

Scores and ranks properties side by side on yield and risk, not gut feel.

Catch what the listing does not say

Flags legal, leasehold, and seismic concerns before you commit.

Export & share

Exports a shareable evaluation you can hand to partners. Viewable by link, no account needed.

Tatemono IQ Property Scorecard with star ratings for location, building condition, financial returns, risk profile, and rental appeal, alongside a calculated 2.77% net yield

Every property distilled to one clear verdict page, including a calculated 2.77% real net yield.

Tatemono IQ Natural Disaster Hazard Risk Assessment panel: Overall Low Risk, Flood Moderate, Storm Surge Low, Tsunami None, Landslide None, Internal Flooding None

Natural-disaster exposure scored per site before you commit: overall Low Risk, one Moderate flood flag, and None for tsunami and landslide.

Everything you need to evaluate a Japan property, without flying there.

Capture any listing in one click

Browser extension

Stop retyping listing data. Open any property on SUUMO, Athome, Rakumachi and 10 more portals, and it's imported and structured instantly.

See the numbers that actually decide the deal

Cashflow & proforma

Long-term cashflow modeling with financing, depreciation, vacancy, and exit scenarios (loan term configurable up to 35 years). The real return, not a one-line gross yield.

Risk assessment

Flood, tsunami, landslide, and storm-surge exposure scored for due diligence. Before you commit, not after.

Maps & POI

Street View, walking times, and 41 points-of-interest categories. Judge the location from anywhere.

Shortlist with confidence

Lists & comparison

Organize properties into lists, rank them by AI cash-flow, and compare side by side instead of juggling a folder of PDFs.

Make it personal, and get answers fast

Investor profile & Fit Score

Tell it your strategy (budget, target return, risk tolerance, horizon) and every property comes back with a personalized fit score.

Ask Aki & follow-up Q&A

Ask anything in plain language. Track the questions you send brokers, record their answers, and auto-apply them to the property.

What becomes easier for the investor

  1. 01

    Shortlist properties faster

  2. 02

    Compare opportunities more logically

  3. 03

    Identify concerns earlier

  4. 04

    Ask better questions

  5. 05

    Explain decisions more confidently

From fragmented property information to structured evaluation.

Before

  • Separate files and documents
  • Market-specific terminology
  • Unclear comparison
  • Hidden or delayed concerns
  • Subjective interpretation

After

  • Organized property information
  • Easier understanding
  • Side-by-side comparison
  • Earlier visibility into risk
  • More explainable decisions

Run this on the property you're looking at now.

Start Free Trial

2-week free trial · No credit card required

In a data-rich market, judgment is the edge.

What matters isn't how much information you have. It's whether you can organize it, compare it, and stand behind the decision. Tatemono IQ is the foundation under that judgment.

What reduces regret isn't more information. It's better judgment.

Before you decide

Explorer plan

$29

2-week free trial · No credit card required

See full pricing →

Who's behind this

Tatemono IQ is built by Charles Parra, who brings extensive experience building large-scale data platforms and deep expertise in real estate data.

Meet the team →

See your first property evaluated free.

Paste a listing or upload the Maisoku, and get a structured risk-and-yield report in minutes.

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2-week free trial · No credit card required

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