[Assessed 80.3%] Detached house in Sayama, Saitama — 10 min from Shin-Sayama Sta.

⚠️ The listing has no on-site photos, so we have not been able to check for retaining walls, any step between the lot and the front road, whether it is a flag-shaped lot, whether it is a row house (nagaya), or the condition of the building exterior. The only image in the Rakumachi and Kenbiya listings is the same single floor plan. With that caveat, this is a used detached house in Kamiokutomi, Sayama. The nearest station is Shin-Sayama Station on the Seibu Shinjuku Line, listed as a 10-minute walk. The lot faces a 4.00 m wide private road on the east. The listing gives no names or distances for nearby shops, so the nearby places below were found on OpenStreetMap, and their distances are straight-line distances from the point for Kamiokutomi 77 obtained from the GSI address search.

The price is 4.8 million yen. It is a two-story wooden 3DK house built in July 1972, with 44.05 m² of floor area on 47.56 m² of land (registered, freehold). It is in a Category 1 Low-Rise Exclusive Residential zone within the urbanization promotion area, with a 50% building coverage ratio and 80% floor area ratio. ⚠️ The floor area of 44.05 m² exceeds the 38.05 m² allowed by multiplying the 47.56 m² of land by the 80% floor area ratio by about 6 m², so the building may exceed the floor area ratio. The listing does not say whether it is a legally nonconforming existing building or a violation; a rebuild may not be able to reach the same size, and financing may be affected. The owner currently lives there and handover is negotiable, so the expected annual income of 600,000 yen and gross yield of 12.50% are estimates, not actual rental results.

The building is 54 years old and past its 22-year statutory useful life, so it is valued at zero, and the assessed ratio of 80.26% comes from the land alone. For the road price we used 81,000 yen/m² (2026), the most common value on the local streets of Kamiokutomi. ⚠️ This ratio is a narrow margin right around 80%. The private road burden field is blank; if a share of the private road is included in the 47.56 m² of land, the effective area shrinks, and the ratio falls below 80%: 79.9% with about 0.2 m² and 78.6% with 1 m². The lot also faces a private road with no road price; land along a private road is valued with a special road price, which is usually lower than that of the road the private road leads to (83,000 yen/m²). One step lower, at 79,000 yen/m², the ratio would be 78.3%.

The listing also says nothing about whether there is a share in the private road or its size, consent for passage and excavation, or the road type (whether it is a designated road). Together with the lack of photos, this property should be considered on the assumption of an on-site check and inquiries with the agent.