[Assessed 97.5%] Detached house in Sayama, Saitama — 20 min from Iriso Sta.

⚠️ Please note the frontage. The athome listing leaves the road-access field blank; we rely on the same property's SUUMO listing by another broker, which states "north-west, 4 m wide, no private-road burden". Neither listing mentions non-rebuildable status or access via a passage, but the road type (public road or designated road) is not given. The SUUMO listing's restrictions also mention a "residential land development regulation area". In the photos the whole neighbourhood is flat, with the frontage road and both neighbours at the same level as the lot.

The property is a detached house at Kita-Iriso 743-27, Sayama, Saitama, a 20-minute walk from Iriso Station on the Seibu Shinjuku Line (the alternative listing shows an 11-minute bus ride to the Mizuoshi-Jutaku-mae stop plus an 11-minute walk). Shinjuku is roughly 60 minutes from Iriso on the Seibu Shinjuku Line. Sayama lies along Route 16, and this site already carries an article in the same Kita-Iriso district. Yaoko Kita-Iriso, McDonald's and Fujiya are about two minutes' walk away, so daily shopping is on foot.

The building is a two-storey wooden house, 3DK (DK 5 mats, Western rooms of 7, 6 and 6 mats), built in October 1973 (52 years old), floor area 62.10 m², land 73.15 m² (registered), freehold with no private-road burden. It is vacant, handover negotiable, asking price JPY 6 million, no parking. Zoning is Category 1 low-rise exclusive residential (50% coverage / 80% floor-area ratio), urbanisation promotion area, with public water, mains sewer and individual LP gas. No rent estimate is given, so income depends on letting after purchase.

For the assessment we traced every local street in Kita-Iriso on the 2026 land-value map and took the most common value, JPY 80,000/m² (leasehold ratio D). The same street moved 78,000 → 79,000 → 80,000 yen from 2024 to 2026, up 2.6% in two years. Land: 73.15 m² × 80,000 = JPY 5.85 million; building: JPY 0 at 52 years old; 97.5% of the price. The lot number lets us place the block on the map, and the local street it fronts to the north-west reads JPY 77,000/m²; that band gives 93.9%, and even the lowest band in the district, 69,000, gives 84.1%.

We checked the athome exterior photo plus two frontage-road photos and one exterior photo from the SUUMO listing. The frontage road is a paved road about 4 m wide at the same level as the lot; the two or three courses of block at the front (0.4–0.6 m) have the same ground level on both sides and are not a retaining wall, and both neighbouring lots are level with the site with no retaining walls. It is not a flag lot and fronts the road directly. The 52-year-old house is sold as-is and would need a repair estimate before letting, but it is a low-priced house where the land value alone covers almost the entire price.