Why Marokama?
Certified & Reliable
All content is curated by a Takken Shi (Licensed Real Estate Agent). We ensure accuracy and reliability so you can make informed decisions with confidence.
Koto-ku Specialist
Deep local insights into Toyosu, Ariake, and the Tokyo waterfront area. We find the best homes that major portals often miss.
No Language Barrier
All guides, data, and tools are in English — making Japan real estate accessible and understandable for international buyers and investors.
Our Credentials
Licensed Real Estate Agent (Takken Shi)
Our content is curated by a Takken Shi-certified professional. All market data is sourced directly from official Japanese government databases, ensuring accuracy and trustworthiness.
- License Category: Licensed Real Estate Agent (Takken Shi)
- Registry: Tokyo Metropolitan Government
- Specialization: Koto-ku Waterfront Residential Leasing
How It Works
Browse our in-depth guides on Toyosu, Ariake, and Tokyo's waterfront districts. Understand each neighborhood before making any decisions.Use our interactive charts powered by government data to understand price trends, transaction volumes, and investment potential across Tokyo neighborhoods.We curate a list of properties that meet your needs. We can arrange both in-person and online viewings for your convenience.Armed with data and local insights, connect with trusted agents in the Koto-ku area when you are ready to take action.Latest Guides & News
Featured Guide (Toyosu)
FAQ
Q: Can I apply for an apartment from overseas?
A: Yes, we support online viewings and digital applications for many properties in Koto-ku.
Q: Do you handle properties outside of Toyosu?
A: While we specialize in the waterfront area, we can assist with any residential property in Tokyo.
Q: Is there an English-speaking support fee?
A: Yes, all our data, guides, and tools are completely free. No registration or fees required.
Ready to explore Tokyo real estate data?
Our Complete Guide Library
All guides are free, written by a licensed real estate agent (宅建士), and updated for 2026.
🏠 Renting in Japan
- How to Rent an Apartment in Japan as a Foreigner — Complete step-by-step guide to the entire rental process
- Japan Apartment Initial Costs Explained — Every upfront fee decoded, with a worked cost example
- Japan Guarantor System Explained — Options for foreigners who need a guarantor
- Japan Lease Agreement Explained in English — Key clauses, rights, and what to watch out for
📍 Neighborhoods
- Best Neighborhoods in Tokyo for Expats — Comprehensive area comparison with rent ranges and lifestyle profiles
- Living in Toyosu: Complete Expat Guide — Deep dive into Tokyo’s top waterfront expat neighborhood
- Moving to Koto-ku: An Honest Expat Review — On-the-ground review of Koto-ku from a local resident
🏢 Buying in Tokyo
- Buying Property in Tokyo as a Foreigner — Complete guide: process, costs, mortgages, and legal requirements
- Japan Property Purchase Costs Explained — Every fee decoded, with a full cost table for a ¥30M purchase
- New vs. Resale Property in Tokyo — Honest comparison: yields, earthquake standards, inspection rights
- How to Get a Mortgage in Japan as a Foreigner — Which banks lend, what LTV to expect, what to do without PR
- Japan Property Sales Contract Explained in English — Every key clause of the 売買契約書 in plain English
📈 Investment
- Tokyo Real Estate Investment Guide — Yields, property types, financing, taxes, and exit strategy for foreign investors
- Tokyo Rental Yield by Ward: 2026 Data — Gross yield data across all 23 wards, by unit type
- Managing Tokyo Property as a Non-Resident — Management companies, sublease pitfalls, tax representative setup
- Japan Real Estate Tax Guide for Foreign Investors — Withholding tax, capital gains, depreciation strategy, and tax treaties