🌸 Overview
Line name: Seibu Tamagawa Line
Operator: Seibu Railway Co., Ltd.
Section: Musashi-Sakai (Musashino City, Tokyo) – Koremasa (Fuchu City, Tokyo)
Length: Approx. 8.0 km
Stations: 6 (Musashi-Sakai / Shin-Koganei / Tama / Shiraitodai / Kyoteijo-mae / Koremasa)
Opened: 1917 (originally as the Tama Railway)
Connections: JR Chuo Line (Musashi-Sakai), Keio Line (Musashinodai – walkable), not connected to other Seibu main lines
Feature: The only “stand-alone” Seibu Line / serves as both a local commuter and Central Line feeder
📜 History & Background
1917: Opened as Tama Railway, later integrated into Seibu Railway.
Originally designed as a leisure route to the Tamagawa River.
As the population along the line increased, it evolved into a community-based commuter line.
Among all Seibu lines, this is the only one not connected to any other Seibu line.
🚉 Major Stations
Musashi-Sakai: Connected to JR Chuo Line. Lively hub with shopping centers and restaurants.
Tama: Renovated in 2020. Closest station to Musashino Forest Park, Tokyo University of Foreign Studies, and Fuchu Forest Art Theater.
Koremasa: Terminus station by the Tamagawa River. Quiet, green residential area.
🌟 Highlights (Merits)
✅ 1. Direct Connection to the JR Chuo Line
Easy transfer at Musashi-Sakai → Excellent access to Shinjuku and central Tokyo.
Also walkable to the Keio Line (Musashinodai), providing flexible transit options.
✅ 2. Calm Residential Neighborhoods with Rich Nature
Dominated by detached houses and low-rise apartments.
Surrounded by nature spots such as Musashino Forest Park and the Tamagawa River.
✅ 3. Mild Crowding Even During Rush Hours
Less crowded than the Chuo Line / Mainly used by students and local residents / Peaceful community vibe.
⚠️ Weak Points (Demerits)
❌ 1. No Connection to Other Seibu Lines
Physically separated from the Seibu Ikebukuro and Shinjuku Lines → Less integrated within the group network.
❌ 2. Limited Train Frequency
Approx. 1 train every 12–15 minutes during the day.
Slightly longer waiting times, though extra runs operate during rush hours.
❌ 3. Few Large Commercial Facilities
Outside Musashi-Sakai, stations mainly have convenience stores or small supermarkets.
For full-scale shopping, residents head to Musashi-Sakai or Fuchu.
🧺 Living Convenience (Livability)
Transport Access: ★★★★☆ / Excellent access to central Tokyo via Chuo & Keio Lines
Shopping Environment: ★★★☆☆ / Local shops sufficient for daily needs
Education & Healthcare: ★★★★☆ / Nearby universities and public schools well-established
Nature & Environment: ★★★★★ / Abundant greenery – Tamagawa River, Musashino Forest Park, Chofu Airfield
Safety: ★★★★★ / Calm, safe, and family-friendly atmosphere
🏠 Real Estate Perspective
💴 Rent Range (as of 2025)
Musashi-Sakai: 1R/1K ¥70,000–¥90,000 / 2LDK+ ¥140,000–¥180,000 / Central access + shopping convenience
Tama: 1R/1K ¥60,000–¥75,000 / 2LDK+ ¥110,000–¥130,000 / Quiet, renovated, good balance of price and environment
Koremasa: 1R/1K ¥55,000–¥65,000 / 2LDK+ ¥100,000–¥120,000 / Surrounded by nature, good value for money
🏘 Housing Trends
Low-rise housing dominates / mix of single and family rentals.
Rising number of renovated and newly built detached homes, especially around Shiraitodai and Koremasa.
🎯 Who It’s Perfect For
✅ Families & seniors seeking a quiet, natural environment
✅ Commuters working in central Tokyo who value Chuo or Keio Line access
✅ Parents prioritizing parks, schools, and child-friendly neighborhoods
✅ Those seeking an affordable, relaxed lifestyle in a suburban setting
📌 Summary
The Seibu Tamagawa Line stands out as Seibu Railway’s only independent local line,
offering a unique balance of community living + Chuo Line connectivity.
While modest in scale, its green surroundings, easy access to Tokyo, and calm neighborhoods
make it a hidden gem for comfortable suburban living in western Tokyo.