[Assessed 120.9%] Detached house in Abiko, Chiba — 20 min from Abiko Sta.
Property Overview
| Location | Abiko, Chiba |
| Nearest Station | JR Joban Line Abiko Sta. |
| Walk | 20 min walk |
| Assessed Ratio | 120.9%Assessed 120.9% |
| Price | ¥11,800,000 |
| Type | Detached house |
| Structure | Wooden |
| Built | Built Sep 1972 (54 years old) |
| Land Area | 179.34㎡ |
| Building Area | 98.14㎡ |
Where This Property Is Listed
This property appears on the sites below. Listings matching on location, land area and building area are merged into a single article as the same property.
| athome | ¥11,800,000View listing |
Assessed Value Breakdown
| Land assessed value | ¥14,267,700 |
| Building assessed value | ¥0 |
| Total assessed value | ¥14,267,700 |
| Asking price | ¥11,800,000 |
| Assessed ratio | 120.9% |
Calculation basis
- Land assessed value was entered manually by the operator.
- Building = replacement cost ¥220,000/m² × floor area 98.14m² × remaining life 0y ÷ statutory life 22y
- Built Sep 1972 (54 years old)
Official Road Price Trend (last 3 years)
Cumulative change 2024 → 2026: +7.1%| Year | Road price (JPY/m²) | YoY |
|---|---|---|
| 2024 | 84,000 | — |
| 2025 | 87,000 | +3.6% |
| 2026 | 90,000 | +3.4% |
※ Based on inheritance-tax road prices published each July — a reference for the trend in land collateral value.
How We Checked This Property
Because the property backs onto a wooded slope, we checked the height differences around the lot against the 2026 route price maps, all 16 listing photos and GSI elevation data.
What We Could Not Confirm
- We have not confirmed whether the property sits below the slope (cliff) behind it, or whether cliff-related rules would apply when rebuilding.
- The lot number is not disclosed, so the location is estimated from aerial photos. The route price and elevation readings may change depending on the actual lot.
- The form of the 20.81 ㎡ private-road share (co-ownership or not) and the road type (designated road or not) are not stated.
- The full north and west boundaries are not visible in the photos, so retaining heights have only been partly checked.
- The lot straddles two zoning districts, and the listing does not say which part of the lot falls in which.
※ Rather than reproducing the listing as-is, we verified the figures against public sources such as the official road price maps and the listing photos. This is not based on a site visit, so please confirm on site and with the seller before deciding.
Neighborhood ① Shopping Near the Station
Neighborhood ② Dining Near the Station
About This Property
⚠️ The back (north side) of the property is a wooded slope. A cross-section of the Geospatial Information Authority of Japan's 1 m elevation data at the estimated location suggests a slope (cliff) that rises about 8 m just beyond the north boundary. The lot number is not disclosed, so the location is an estimate based on aerial photos, but if the house sits below the cliff, Chiba Prefecture's building ordinance provisions on cliffs may require measures such as a retaining wall when rebuilding. The listing mentions no cliff or retaining wall, and the block wall at the rear visible in the photos retains less than 1 m of soil. Please confirm with the agent and Abiko City before considering a purchase.
A pre-owned detached house in Kotobuki 2-chome, Abiko, a 20-minute walk from Abiko Station on the JR Joban Line (or a 7-minute bus ride from the station to the Shiyakusho stop, then a 1-minute walk). The KEIHOKU Kotobuki and Kasumi supermarkets are roughly 300 m from the centre of the block, so daily shopping is within walking distance (distances are straight-line from the centre of the block).
The two-storey wooden house was built in September 1972, with 98.14 ㎡ of floor area and a 4SLDK layout. The interior (floors, walls, ceilings and fittings) was fully renovated in May 2026; there are two toilets, parking for two cars and a garden, and the main windows face south. The 179.34 ㎡ freehold lot (registered area) straddles a Category 1 Low-rise Exclusive Residential Zone and a Category 2 Residential Zone (60% building coverage, 150% floor-area ratio), is registered as residential land and is level. It fronts a 4.0 m private road to the south, with a private-road burden of 20.81 ㎡. The house is vacant and available for immediate handover.
The building has passed the 22-year statutory useful life for wooden structures, so its assessed value is zero and the valuation rests on the land alone. The 2026 route price is ¥90,000/㎡, up about 7% from ¥84,000/㎡ two years earlier. On the local roads of Kotobuki 2-chome, ¥90,000 and ¥92,000/㎡ are tied as the most common values, so we used the lower ¥90,000. The listing does not say whether the 20.81 ㎡ private-road burden is included in the lot area, so we assumed it is and deducted it, valuing 158.53 ㎡ (assessed ratio 120.9%). Without the deduction the ratio is 136.8%. Even at ¥73,000/㎡, the lowest value in the block, it is about 98%.
The land value exceeds the price, and the house has a newly renovated interior ready for use. On the other hand, the listing does not show whether the slope behind affects rebuilding, nor the form of the private-road share and the road type. We recommend checking these on site and with the local authorities.
Estimated Financing
Suggested Lenders
※ General tendencies of lenders covering this area, for information only. This does not guarantee or suggest any specific financing outcome.
Learn About Assessed Value and Financing
Our blog explains the basics you need to read the numbers on this page.
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