The decision support platform for Japan real estate.

Evaluate any Japan property on the same objective criteria — in minutes, not days

Japanese listings are scattered, in Japanese, and impossible to compare. Tatemono IQ turns raw property data into one structured, side-by-side analysis — so you can compare any two listings on the same terms.

No credit card required.

Built on 2.48M official MLIT transactions, IPSS demographics, official land valuations.

Works on SUUMO, Athome, Rakumachi and 9 more Japanese portals.

Setagaya · 1K Apartment
¥38,000,000 · 24.8㎡ · 2019
Fit A−
4.8%
Cap rate
¥2.4M
NOI
3.2%
Vacancy
5 decision layers
  • LocationA
  • BuildingB+
  • ProfitabilityA−
  • Legal riskB
  • FeaturesA

It's not the language. It's a different investment framework.

A Japanese broker hands over a one-page maisoku and a single gross-yield figure. An international buyer needs NOI, a multi-year pro forma, and sold comps. Both are right — they're reading the same property through entirely different lenses, and cross-border deals die in that gap. Tatemono IQ puts both frameworks on one page, so nothing gets lost between them.

Scattered Data
PDFs, spreadsheets, emails
No common standard
Hard to compare
Tatemono IQ
Organized Output
Structured analysis
Clear comparisons
Decision-ready

5 Decision Layers

A single overlooked layer — a hidden leasehold, an aging structure — can turn a 4.8% gross yield into a real loss. Every analysis checks all five, so nothing slips past you.

Layer 1
Location
Demand, access, and hazard exposure — not just the address.
Layer 2
Building
Age, structure, and depreciation that quietly erode the real return.
Layer 3
Profitability
The full picture: financing, vacancy, and exit — not a one-line gross yield.
Layer 4
Legal Risk
Leasehold, zoning, and registry concerns flagged before you commit.
Layer 5
Features
The specifics that move value, captured and compared consistently.

How It Works

From listing to decision in three steps.

1

Import

One-click browser extension on SUUMO, Athome, Rakumachi and 9 more portals — or drop any Maisoku PDF and let OCR + AI extract and structure it. No retyping.

2

Analyze

Tatemono IQ pulls in points-of-interest, hazard risk, and official data, then runs all five decision layers.

3

Decide

Rank properties side by side, make the call, and hand partners or clients a clear summary they can read without an account.

Fits Into Your Existing Process

No new system to learn — Tatemono IQ slots into how you already source, compare, and brief. You just stop translating and re-typing by hand.

Find Property
Browse listings as usual
Organize Info
Tatemono IQ structures the data
Compare
Review options side-by-side
Decide & Share
Act with confidence

For Investors

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

See investor features

For Agents

Turn fragmented Japanese listings into clear, client-ready comparisons and risk reports — so your proposals close, not stall.

See agent features

What You Get

Three outputs you can act on.

Investment Analysis Report

One page per property you can read in a minute: the verdict up top, the evidence — yield, comparables, hazard and structural flags — underneath.

Comparison Dashboard

Properties ranked side by side on the same objective criteria — no more juggling a folder of PDFs.

Shareable Summary

A clean evaluation you can hand to partners or clients — viewable by link, no account required.

AI doesn't replace your judgment — it puts everything in front of you.

See your first property evaluated free.

Paste a listing or upload the Maisoku, and get a structured risk-and-yield report in minutes — every number grounded in real market evidence.

No credit card required.