The Yokohama Municipal Green Line is a subway-style route connecting the northern Yokohama area, particularly the well-developed Kohoku New Town.
Running between Hiyoshi and Nakayama, it links residential districts, commercial zones, and green parks—making it one of the most popular family-oriented lines in the city.

🏛 1. Basic Information & Overview

Official Name: Yokohama Municipal Rapid Transit Line 4 (Green Line)
Line Color: Green
Total Length: Approx. 13.0 km
Number of Stations: 10
Terminals: Hiyoshi Station (Kohoku Ward) ⇄ Nakayama Station (Midori Ward)
Operator: Yokohama City Transportation Bureau
Opened: March 30, 2008
Through Services: None (connected to the Municipal Blue Line)

📜 2. History & Background

・Developed to eliminate transportation gaps in northern Yokohama, especially the Kohoku New Town area.
・Constructed based on strong demand from local residents, and opened as a relatively new subway system.
・The line serves residential zones, educational districts, and redevelopment areas—highly favored by families.
・Future extension plans (Hiyoshi–Shin-Tsunashima–Tsurumi / Nakayama–Futamatagawa) may further increase convenience and value.

🌟 3. Strengths (Merits)
✅ 1. Clean, Modern, and Comfortable Facilities

・Being a new line (opened in 2008), stations and trains are modern and well-kept.
・All stations are equipped with platform screen doors, elevators, and full barrier-free access.
・Safe and easy to use for children, seniors, and families.

✅ 2. Covers Popular Family-Friendly Residential Areas

・Areas like Kitayamada, Center-Kita, and Center-Minami feature malls, parks, child-care facilities, and safe residential environments.
・Highly rated by families seeking comfort, convenience, and greenery.

✅ 3. Easy Connections to Tokyu, JR, and Blue Line

・Transfer at Hiyoshi (Tokyu Toyoko Line), Nakayama (JR Yokohama Line), Center-Minami (Blue Line).
・Provides flexible access to major destinations in Yokohama, Kawasaki, and beyond.

✅ 4. Less Crowded Compared to Other Major Lines

・Relatively low congestion levels even during rush hours.
・Many riders find it easier to secure a seat than on other metropolitan lines.

⚠️ 4. Weaknesses (Demerits)
❌ 1. Fewer Trains & Longer Travel Times (Transfers Needed)

・Even during rush hours: approx. 8 trains/hour (every 7–8 minutes).
・No through operations, so commuting to central Tokyo often requires transfers.
・Travel times may feel longer compared to direct routes.

❌ 2. Higher Fares for a Short Distance

・Full-length IC fare is around ¥360 (as of 2025), which feels expensive for a short route.
・Total fare becomes even higher when combined with Tokyu/JR transfers.

❌ 3. Limited Tourist Spots & Nightlife

・Mainly residential, with few business districts or entertainment areas.
・Used mostly as a “daily life” route for commuting, school, and shopping.

🧺 5. Daily Convenience Along the Line

Transportation:
・Convenient transfers to Tokyu, JR, and Blue Line.
・However, most routes to central Tokyo require transfers.

Shopping/Commercial:
・Center-Kita & Center-Minami have large shopping malls with everything from groceries to fashion.

Safety:
・Very calm residential atmosphere; overall high safety levels.

Childcare Environment:
・Abundant parks, nurseries, and schools—ideal for families with kids.

Nature:
・Many green areas and walking paths; great for jogging and outdoor activities.

🏠 6. Real Estate Perspective (2025 Estimates)
💴 Rent Range (Monthly)

Hiyoshi
・1R / 1K：￥85,000〜￥110,000
・2LDK〜（Family）：￥170,000〜￥250,000
・Note：Popular student and business hub; higher price range.

Kitayamada
・1R / 1K：￥75,000〜￥90,000
・Family：￥140,000〜￥200,000
・Note：Quiet, family-focused residential district.

Center-Kita
・1R / 1K：￥80,000〜￥105,000
・Family：￥160,000〜￥230,000
・Note：Multiple malls and top-tier convenience.

Center-Minami
・1R / 1K：￥80,000〜￥100,000
・Family：￥150,000〜￥220,000
・Note：Administrative and commercial facilities concentrated.

Nakayama
・1R / 1K：￥70,000〜￥90,000
・Family：￥140,000〜￥200,000
・Note：Easy JR connection; nature-rich suburban feel.

🏘 Housing Characteristics

・Low-rise condominiums and modern residential developments dominate the line.
・Center-Kita/Center-Minami areas are seeing gradual growth in tower apartments.
・The main demographic is families; singles and DINKs also find it comfortable.

🎯 7. Who Is the Green Line Ideal For?

・Families seeking a safe, calm residential environment in northern Yokohama
・People who want a balanced lifestyle with nature, shopping, and childcare facilities
・Commuters who frequently transfer to Tokyu, JR, or the Blue Line
・Residents who value future redevelopment potential and stable property value

📌 8. Summary

The Yokohama Municipal Green Line is a family-oriented subway route connecting residential and commercial areas throughout northern Yokohama.
It offers a strong balance of safety, comfort, greenery, and convenience, supported by modern facilities and well-planned town development.

While issues like higher fares and the need for transfers remain,
the overall quality of life along the line is high—making it a highly attractive option for families and long-term residents.