Rail lines and operators
Seibu Ikebukuro Line
Seibu Railway
Published residential-land transactions are aggregated across 8 full neighborhoods whose representative points lie within 1.5 km straight-line distance of the station. The neighborhood breakdown appears below.
| Neighborhood | Median / m² | Latest year · samples |
|---|---|---|
| Inariyama | No data | No data in five years |
| Koyodai | No data | No data in five years |
| Unoki | JPY 89,238 / m²JPY 89.238K / m² | 2025 · 2 |
| Kurosu | JPY 169,400 / m²JPY 169.4K / m² | 2025 · 2 |
| Kawaramachi | JPY 96,800 / m²JPY 96.8K / m² | 2025 · 1 |
| Irumagawa | JPY 99,825 / m²JPY 99.825K / m² | 2025 · 11 |
| Oaza-Kurosu | JPY 39,325 / m²JPY 39.325K / m² | 2025 · 1 |
| Toyoka | JPY 131,588 / m²JPY 131.588K / m² | 2025 · 4 |
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.
The green circle is a 1.5 km radius; orange points are neighborhood representative points.
Seibu Ikebukuro Line
Seibu Railway
Sayamashi Station 1.89 km · JPY 107,388 / m²JPY 107.388K / m²
Iriso Station 2.86 km · JPY 96,800 / m²JPY 96.8K / m²
Shin-Sayama Station 4.51 km · JPY 42,350 / m²JPY 42.35K / m²
Station location, lines and operators come from the MLIT N02 railway dataset. Station distances are straight-line distances between representative coordinates.
| Date | Neighborhood | Price | Area | Price / m² | Zoning |
|---|---|---|---|---|---|
| 2025-10 | Unoki | JPY 11M | 150.0 m² | JPY 72,600 / m²JPY 72.6K / m² | — |
| 2025-10 | Kurosu | JPY 21M | 130.0 m² | JPY 157,300 / m²JPY 157.3K / m² | — |
| 2025-10 | Irumagawa | JPY 24M | 190.0 m² | JPY 127,050 / m²JPY 127.05K / m² | — |
| 2025-10 | Irumagawa | JPY 5.5M | 55.0 m² | JPY 99,825 / m²JPY 99.825K / m² | — |
| 2025-07 | Kurosu | JPY 24M | 130.0 m² | JPY 181,500 / m²JPY 181.5K / m² | — |
| 2025-07 | Oaza-Kurosu | JPY 38M | 980.0 m² | JPY 39,325 / m²JPY 39.325K / m² | — |
| 2025-07 | Irumagawa | JPY 22M | 200.0 m² | JPY 108,900 / m²JPY 108.9K / m² | — |
| 2025-04 | Unoki | JPY 20M | 185.0 m² | JPY 105,875 / m²JPY 105.875K / m² | — |
| 2025-04 | Kawaramachi | JPY 13M | 130.0 m² | JPY 96,800 / m²JPY 96.8K / m² | — |
| 2025-04 | Irumagawa | JPY 46M | 280.0 m² | JPY 166,375 / m²JPY 166.375K / m² | — |
| 2025-04 | Irumagawa | JPY 180M | 1900.0 m² | JPY 93,775 / m²JPY 93.775K / m² | — |
| 2025-04 | Toyoka | JPY 6.8M | 35.0 m² | JPY 193,600 / m²JPY 193.6K / m² | — |
| 2025-04 | Toyoka | JPY 29M | 400.0 m² | JPY 72,600 / m²JPY 72.6K / m² | — |
| 2025-01 | Irumagawa | JPY 21M | 135.0 m² | JPY 154,275 / m²JPY 154.275K / m² | — |
| 2025-01 | Irumagawa | JPY 25M | 230.0 m² | JPY 105,875 / m²JPY 105.875K / m² | — |
| 2025-01 | Irumagawa | JPY 11M | 155.0 m² | JPY 69,575 / m²JPY 69.575K / m² | — |
| 2025-01 | Irumagawa | JPY 13M | 240.0 m² | JPY 51,425 / m²JPY 51.425K / m² | — |
| 2025-01 | Irumagawa | JPY 1.5M | 60.0 m² | JPY 24,503 / m²JPY 24.503K / m² | — |
| 2025-01 | Irumagawa | JPY 2.5M | 990.0 m² | JPY 2,511 / m²JPY 2.511K / m² | — |
| 2025-01 | Toyoka | JPY 27M | 165.0 m² | JPY 163,350 / m²JPY 163.35K / m² | — |
| 2025-01 | Toyoka | JPY 13M | 130.0 m² | JPY 99,825 / m²JPY 99.825K / m² | — |
| Direction | Neighborhoods | Public samples | Median / m² |
|---|---|---|---|
| North | Unoki · Irumagawa | 13 | JPY 99,825 / m²JPY 99.825K / m² |
| South | Koyodai · Oaza-Kurosu · Toyoka | 5 | JPY 99,825 / m²JPY 99.825K / m² |
| West | Inariyama · Kurosu · Kawaramachi | 3 | JPY 157,300 / m²JPY 157.3K / m² |
Directions use each neighborhood representative point relative to the station. They do not classify individual transaction coordinates.
Loam terrace is a broad terrain classification. Use it as context for drainage and ground conditions, not as a property-level safety determination.
The elevation range within 250 m is about 3.2 m. Absolute elevation alone does not determine flood risk; compare the property with nearby roads and mapped inundation.
AVS30 (289 m/s) indicates average ground stiffness to 30 m depth. The amplification factor (1.32) compares shaking tendency; neither determines a building's seismic performance or need for ground improvement.
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 Inariyama-Koen Station representative point, not every property in the station area. Check official hazard maps, disclosure documents and plot-specific ground investigations before purchase.