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1

1stkey.co.jp

Overall Rating
★★★☆☆ 6.0/10
China Access
★★★ China direct-connect friendly
Quick Check
Data source
ai_fine · Last updated 2026-08-01

⚡ Score breakdown

5-dim weighted · /10
Performance25% 6.0
Value20% 6.0
China access20% 10.0
Reputation20% 5.6
Support15% 5.5

Dimension scores are derived from public data and fields; weighted into the composite. Reference only.

Editorial Highlights

Editorial notes are currently written in Chinese - English translation is in progress. View Chinese version →
部分房源免中介费,覆盖笹塚等多个核心区域

In-Depth Review TG4G Review ·2026-06-25 · For reference only

Basic Platform Info

1stkey.co.jp is a regional real estate brokerage website operated by First Key Co., Ltd. (Japan), focusing on property rental and sales information services for core areas including Sasazuka, Shibuya-ku, Tokyo and the surrounding Shinjuku-ku. It holds an official Japan宅建 license and operates as a compliant local real estate agency.

Core Functions and Services

The core function of the website is to publish and allow filtered searches for rental and resale properties listed by the agency. It supports precise filtering by location, rent budget, floor plan, and special conditions (free agency fee, zero key money, pet-friendly, close to subway station, etc.). It also offers online inquiries, in-store appointment booking, property search requests and other services, plus a dedicated entry for real-time property search, with new listings updated daily. The website's current main advantage is that it offers a large number of rental properties with free agency fees and zero key money, lowering the initial move-in cost for tenants.

Access Experience and Adaptation

The website can be accessed directly from China. The entire site uses a Japanese-only interface with no Chinese support, and is only intended for users who are proficient in Japanese and have housing needs in the Tokyo area.

Advantages, Disadvantages and Target Users

Advantages: detailed property information, timely updates, clear discount terms, and intuitive filtering logic. Disadvantages: service coverage is limited to small local areas of Tokyo, no multilingual support, and some fee rules require offline consultation. It is suitable for Japanese-proficient users who plan to look for rental housing or invest in real estate around Shinjuku and Shibuya, Tokyo. Domestic users who plan to move to Japan for housing can also use this site to get an initial understanding of the local property market.

⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on 1stkey.co.jp official site.

About this entry

1stkey.co.jp is an Japan Real Estate provider. TG4G tracks its product information, an overall rating of 6.0/10, and a China-accessibility score of China direct-connect friendly. Click "Visit Official Site" to reach 1stkey.co.jp directly.

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Price not disclosed
Visit 1stkey.co.jp official site →
External link · prices subject to vendor site

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Frequently Asked Questions

What is 1stkey.co.jp?
1stkey.co.jp is a Japan-based Real Estate provider.
Is 1stkey.co.jp good? Is it worth it?
1stkey.co.jp scores 6.0/10 on TG4G — a solid rating, based in 日本. See the in-depth review below for pros, cons and China accessibility.
Is 1stkey.co.jp usable in China?
1stkey.co.jp offers good direct-connect performance in mainland China and works in most regions without a proxy. The provider is headquartered in Japan and primarily serves overseas markets.
How do I sign up for 1stkey.co.jp?
Visit the 1stkey.co.jp official site to complete sign-up. Registration typically requires an email (Gmail/Outlook recommended) and a payment method. Most overseas services accept credit card / PayPal / crypto. See the "Visit Official Site" button on this page for the direct link.

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