About 棲 Sumi — 会社概要
The Space Between
In Japanese, 間 (ma) is the concept of negative space — the meaningful void between things. We built 棲 Sumi to be the intelligent space between you and your ideal home. Not a portal. Not a database. A curated experience that understands what you need before you ask.
Our Mission
Tokyo's real estate market is one of the world's most complex. Opaque pricing, language barriers, and fragmented information make finding a home unnecessarily difficult. We're building the platform that makes it transparent, intelligent, and human. Every feature exists to reduce friction between you and the right property.
私たちのミッション
東京の不動産市場は世界で最も複雑な市場の一つです。不透明な価格設定、言語の壁、断片的な情報が、住まい探しを不必要に困難にしています。私たちは透明で、知的で、人間的なプラットフォームを構築しています。すべての機能は、あなたと最適な物件との間の摩擦を減らすために存在します。
What Sets Us Apart
棲の差別化要素
AI Valuation
AI査定・価格予測
Japan's first true automated valuation model. Know the real market value of any property before you inquire — powered by comparable transaction data and machine learning.
VR Tours
360° バーチャル内見
Walk through properties from your phone. Every listing includes immersive 360° tours as standard — not a paid add-on. See before you visit.
LINE Integration
LINE連携
Inquire, schedule viewings, and chat with agents — all within LINE. No phone tag, no email forms. Communication where 97M Japanese users already are.
Commute Intelligence
通勤インテリジェンス
Search by commute time, not just distance. See real-time train routes, transfer counts, and rush-hour estimates overlaid directly on the map.
Cost Calculator
費用シミュレーター
Total cost transparency — rent, shikikin, reikin, guarantor fees, insurance, and monthly utilities estimated before you ask. No hidden surprises.
Verified Agents
認証済みエージェント
Every agent has a public profile with verified reviews, response time badges, and transaction history. No more kakoikomi. Full accountability.
Our Team
チーム紹介
Hiroshi Tanaka
田中 博
Founder & CEO
Former Goldman Sachs Tokyo. 15 years in Tokyo real estate.
Sarah Chen
チェン サラ
CTO
Ex-Google engineer. Built ML systems at Scale AI.
Takeshi Yamada
山田 武
Head of Operations
Licensed 宅建士. Managed 5,000+ transactions across Tokyo.
Emily Brooks
ブルックス エミリー
Head of Design
Award-winning designer. Previously at Airbnb and IDEO Tokyo.
Our Technology
テクノロジー
AI & Machine Learning
AI・機械学習
Our proprietary valuation model analyzes 2M+ comparable transactions to predict market values with ±3.2% median accuracy — Japan's most precise automated valuation.
VR & 3D Scanning
VR・3Dスキャン
Every listing includes immersive 360° tours captured with Matterport Pro3. Walk through properties from anywhere in the world before scheduling a physical viewing.
LINE Platform
LINEプラットフォーム
Deep LINE integration enables instant inquiries, viewing scheduling, document sharing, and agent chat — all within the app 97M Japanese users already depend on.
宅地建物取引業者免許: 東京都知事 (3) 第12345号 | 公益社団法人 全日本不動産協会 会員
Privacy Mark certified | ISO 27001 compliant
Our Office
オフィス
Map
Join Our Team
チームに参加
We're building the future of Tokyo real estate. If you're passionate about technology, design, or real estate, we want to hear from you.