Rail lines and operators
Keio Line
Keio Corporation
2025 PUBLIC TRANSACTIONS · 1.5 KM
Roka-Koen Station 1.5 km Area Land Prices
Published residential-land transactions are aggregated across 6 full neighborhoods whose representative points lie within 1.5 km straight-line distance of the station. The neighborhood breakdown appears below.
Median transaction price per m² (2025)
JPY 650,375 / m²JPY 650.375K / m²
Approx. ¥650,000 / m²
2025 245 years 164
Estimated price for 100 m²
JPY 65.04M
Simple estimate using the displayed median
Estimated land + building budget
JPY 104.3M
100 m² building using the 2025 benchmark
The 1.5 km rule applies to neighborhood representative points. It is not a property-level distance or walking-time catchment; prices cover each included neighborhood in full.
Prices by neighborhood
| Neighborhood | Median / m² | Latest year · samples |
|---|---|---|
| Minamikarasuyama | JPY 816,750 / m²JPY 816.75K / m² | 2025 · 1 |
| Kami-Takaido | JPY 393,250 / m²JPY 393.25K / m² | 2025 · 1 |
| Kasuya | JPY 786,500 / m²JPY 786.5K / m² | 2025 · 7 |
| Hachimanyama | JPY 484,000 / m²JPY 484K / m² | 2025 · 1 |
| Kamikitazawa | JPY 665,500 / m²JPY 665.5K / m² | 2025 · 5 |
| Kitakarasuyama | JPY 574,750 / m²JPY 574.75K / m² | 2025 · 9 |
MinamikarasuyamaJPY 816,750 / m²JPY 816.75K / m²2025 · 1›Kami-TakaidoJPY 393,250 / m²JPY 393.25K / m²2025 · 1›KasuyaJPY 786,500 / m²JPY 786.5K / m²2025 · 7›HachimanyamaJPY 484,000 / m²JPY 484K / m²2025 · 1›KamikitazawaJPY 665,500 / m²JPY 665.5K / m²2025 · 5›KitakarasuyamaJPY 574,750 / m²JPY 574.75K / m²2025 · 9›
Each neighborhood uses its most recent transaction year within the five-year dataset, which may differ from the station-area year shown above. The 1.5 km rule uses representative-point distance.
Roka-Koen Station profile
Main rail line
Keio Line
Lines
1
Neighborhood radius
1.5 km
Neighborhoods covered
6 neighborhoods
Station area map
The green circle is a 1.5 km radius; orange points are neighborhood representative points.
Loading map…
Nearest published station areas
Chitose-Karasuyama Station 0.79 km · JPY 574,750 / m²JPY 574.75K / m²
Kami-Kitazawa Station 1.37 km · JPY 665,500 / m²JPY 665.5K / m²
Sakura-Josui Station 2.11 km · JPY 816,750 / m²JPY 816.75K / m²
Station location, lines and operators come from the MLIT N02 railway dataset. Station distances are straight-line distances between representative coordinates.
Published land transaction examples (2025)
| Date | Neighborhood | Price | Area | Price / m² | Zoning |
|---|---|---|---|---|---|
| 2025-10 | Kamikitazawa | JPY 90M | 135.0 m² | JPY 665,500 / m²JPY 665.5K / m² | — |
| 2025-10 | Minamikarasuyama | JPY 69M | 85.0 m² | JPY 816,750 / m²JPY 816.75K / m² | — |
| 2025-10 | Kasuya | JPY 19M | 40.0 m² | JPY 484,000 / m²JPY 484K / m² | — |
| 2025-10 | Kitakarasuyama | JPY 68M | 75.0 m² | JPY 877,250 / m²JPY 877.25K / m² | — |
| 2025-10 | Kitakarasuyama | JPY 95M | 160.0 m² | JPY 605,000 / m²JPY 605K / m² | — |
| 2025-10 | Kitakarasuyama | JPY 53M | 95.0 m² | JPY 574,750 / m²JPY 574.75K / m² | — |
| 2025-07 | Kamikitazawa | JPY 180M | 220.0 m² | JPY 786,500 / m²JPY 786.5K / m² | — |
| 2025-07 | Kasuya | JPY 110M | 105.0 m² | JPY 1,058,750 / m²JPY 1,058.75K / m² | — |
| 2025-07 | Kasuya | JPY 90M | 105.0 m² | JPY 847,000 / m²JPY 847K / m² | — |
| 2025-07 | Kasuya | JPY 68M | 85.0 m² | JPY 816,750 / m²JPY 816.75K / m² | — |
| 2025-07 | Kasuya | JPY 89M | 115.0 m² | JPY 786,500 / m²JPY 786.5K / m² | — |
| 2025-07 | Kitakarasuyama | JPY 88M | 180.0 m² | JPY 484,000 / m²JPY 484K / m² | — |
| 2025-04 | Kami-Takaido | JPY 72M | 185.0 m² | JPY 393,250 / m²JPY 393.25K / m² | Category I exclusively low-rise residential zone |
| 2025-04 | Kamikitazawa | JPY 920M | 800.0 m² | JPY 1,149,500 / m²JPY 1,149.5K / m² | — |
| 2025-04 | Kamikitazawa | JPY 59M | 90.0 m² | JPY 665,500 / m²JPY 665.5K / m² | — |
| 2025-04 | Kasuya | JPY 93M | 220.0 m² | JPY 423,500 / m²JPY 423.5K / m² | — |
| 2025-04 | Hachimanyama | JPY 63M | 130.0 m² | JPY 484,000 / m²JPY 484K / m² | — |
| 2025-04 | Kitakarasuyama | JPY 62M | 90.0 m² | JPY 665,500 / m²JPY 665.5K / m² | — |
| 2025-04 | Kitakarasuyama | JPY 100M | 180.0 m² | JPY 574,750 / m²JPY 574.75K / m² | — |
| 2025-04 | Kitakarasuyama | JPY 57M | 150.0 m² | JPY 393,250 / m²JPY 393.25K / m² | — |
| 2025-01 | Kamikitazawa | JPY 81M | 125.0 m² | JPY 635,250 / m²JPY 635.25K / m² | — |
| 2025-01 | Kasuya | JPY 52M | 70.0 m² | JPY 726,000 / m²JPY 726K / m² | — |
| 2025-01 | Kitakarasuyama | JPY 59M | 160.0 m² | JPY 363,000 / m²JPY 363K / m² | — |
| 2025-01 | Kitakarasuyama | JPY 60M | 190.0 m² | JPY 302,500 / m²JPY 302.5K / m² | — |
Land prices by direction from the station
| Direction | Neighborhoods | Public samples | Median / m² |
|---|---|---|---|
| North | Kami-Takaido | 1 | JPY 393,250 / m²JPY 393.25K / m² |
| East | Hachimanyama · Kamikitazawa | 6 | JPY 665,500 / m²JPY 665.5K / m² |
| South | Kasuya | 7 | JPY 786,500 / m²JPY 786.5K / m² |
| West | Minamikarasuyama · Kitakarasuyama | 10 | JPY 574,750 / m²JPY 574.75K / m² |
Directions use each neighborhood representative point relative to the station. They do not classify individual transaction coordinates.
Terrain and hazards at the station point
Station elevation
46.1 m
Elevation range within 250 m
2.7 m
Micro-landform
Valley lowland
AVS30
227 m/s
Ground amplification
1.62
How should these values be interpreted?
How to read the landform
Valley lowland is a broad terrain classification. Use it as context for drainage and ground conditions, not as a property-level safety determination.
How to read elevation
The elevation range within 250 m is about 2.7 m. Absolute elevation alone does not determine flood risk; compare the property with nearby roads and mapped inundation.
How to read ground values
AVS30 (227 m/s) indicates average ground stiffness to 30 m depth. The amplification factor (1.62) compares shaking tendency; neither determines a building's seismic performance or need for ground improvement.
How to read hazards
At the station representative point, mapped flood status is outside and landslide-warning status is outside. Verify the exact property on official maps because conditions vary within the 1.5 km area.
These values describe the Roka-Koen Station representative point, not every property in the station area. Check official hazard maps, disclosure documents and plot-specific ground investigations before purchase.
Zoning at station
Category I residential zoneFlood map
Outside mapped areaLandslide map
Outside mapped areaLiquefaction
Moderate liquefaction susceptibilityThese values apply to the N02 station representative point. They do not represent every property within the 1.5 km station area. Elevation range uses the center plus four points 250 m north, south, east and west.