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[Assessed 96.5%] Detached house in Nishi Ward, Saitama City, Saitama — 11 min from Sashiogi Sta.
Assessed 96.5%Detached houseNishi Ward, Saitama City, SaitamaSashiogi Sta. 11 min walk

[Assessed 96.5%] Detached house in Nishi Ward, Saitama City, Saitama — 11 min from Sashiogi Sta.

Published: Sep 26, 2026Updated: Sep 26, 2026

Property Overview

LocationNishi Ward, Saitama City, Saitama
Nearest StationJR Kawagoe Line Sashiogi Sta.
Walk11 min walk
Assessed Ratio96.5%Assessed 96.5%
Price¥31,800,000
TypeDetached house
StructureWooden
BuiltBuilt Feb 2023 (3 years old)
Land Area131.19㎡
Building Area96.67㎡

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.

SUUMO¥31,800,000View listing

Assessed Value Breakdown

Land assessed value¥12,331,860
Building assessed value¥18,367,300
Total assessed value¥30,699,160
Asking price¥31,800,000
Assessed ratio96.5%

Calculation basis

  • Land = road price ¥94,000/m² × land area 131.19m²
  • Building = replacement cost ¥220,000/m² × floor area 96.67m² × remaining life 19y ÷ statutory life 22y
  • Built Feb 2023 (3 years old)

Official Road Price Trend (last 3 years)

Cumulative change 2024 → 2026: +5.6%
YearRoad price (JPY/m²)YoY
202489,000—
202591,000+2.2%
202694,000+3.3%

※ 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 lot number is not disclosed, we narrowed down the location using the listed facility distances, photos and aerial photographs, and checked the figures against the 2026 road price map and GSI elevation data.

Listing check

The lot number is not disclosed. The map position in the listing is about 200 m in a straight line from Sashiogi Station, which does not match the listed 850 m / 11-minute walk, so we did not use it. We narrowed the area to where the listed facility distances (station 850 m, Sashiogi Hospital 1,000 m, Tsuchiya Junior High 1,700 m, Mamiya-Higashi Elementary 2,300 m) are all satisfied, then overlaid aerial photographs and the street photo (the ramp embankment appears at the end of the road) and estimated the site to be a housing development beside a Route 16 ramp west of Sashiogi Station. Which lot within the development has not been determined.

Locating the road price

On the 2026 road price map (sheet 31123, with 31108 and 31124 as supplements), most of Oaza Nishi-Asuma is a multiplier-rate area; road prices are set only for the blocks southeast of the Route 16 Nishi-Omiya Bypass and north of the Saitama-Kasukabe Line. In this zone the most common value on local streets is ¥94,000/m² (leasehold ratio D), with other bands from ¥88,000 to ¥98,000; the ¥98,000 on the prefectural road and the ramp was not counted because they are arterial roads. The same road went from ¥89,000 (2024) to ¥91,000 (2025) to ¥94,000/m² (2026). The frontage road the site faces is ¥96,000/m², but because the lot has not been pinned down we used the modal value.

View source
Effective land area

The land area of 131.19 m² is the registered figure, and there is no private road burden. Because the site faces the 11 m southwest road for 10.7 m, we judged that it is not a flag-shaped lot and used the listed area as is. The frontage on the 6 m north road is 2.7 m, so the northern part of the site may be a narrow strip (see the open points below).

On-site check from photos

We checked the three photos (street view including the road in front, exterior and garden), enlarging the backgrounds, and supplemented them with GSI 1 m elevation data and aerial photographs. The road inside the development to the north is flat, and the parking space and entrance approach are at the same level. On the southwest, a mesh fence at the edge of the garden stands at lawn level; beyond the frontage road is the ramp embankment (with a concrete retaining wall of about 1-1.5 m at its base), but it lies within the road area and is not a retaining wall on the site boundary. On the east there is a gravel path between the house and its neighbor, and on the south a screening fence on a low base, both at the same level. The elevation data suggest a difference of 0.3 m or less between the site and the frontage road, and we see the retained height as under 1 m all around (about 0.3 m at most). The two steps at the entrance porch belong to the building foundation. The house is detached and stands apart from its neighbors.

What We Could Not Confirm

  • The lot number is not disclosed and which lot within the development the house occupies has not been determined, so the road price of the adjoining road has not been identified. Even at the lowest band in the zone, ¥88,000/m², the assessed ratio would be 94.1%.
  • The frontage on the 6 m north road is only 2.7 m, so the northern part of the site may be a narrow strip. No lot plan is included in the listing and the shape has not been confirmed. Even if 2.7 m wide × 10 m deep (about 27 m²) were deducted from the assessment, the assessed ratio would be 88.6%.
  • The current occupancy is not stated. Bicycles and play equipment appear in the exterior photo, so the house may be occupied. The handover date is listed as negotiable.
  • If the lot is at the northwest corner of the development's southern block, the elevation data show points about 1-2 m higher than the surroundings along the west edge of the frontage road. These are probably picked up from the ramp slope, and no step is visible at the fence line in the photos, but an on-site check is advisable.

※ 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

7-Eleven Saitama Nishi-Asuma

Convenience store in Oaza Nishi-Asuma, Nishi Ward. About 520 m in a straight line from the estimated position of the house to its OpenStreetMap location.

Source
Yaokatsu

Supermarket in Oaza Horai, Nishi Ward. About 840 m in a straight line from the estimated position of the house to its OpenStreetMap location.

Source
Life

Supermarket in Oaza Sashiogi-ryo-Bessho, Nishi Ward. About 870 m in a straight line from the estimated position of the house to its OpenStreetMap location.

Source

Neighborhood ② Dining Near the Station

Hidakaya

Chinese noodle and set-meal chain in Oaza Tsuchiya, Nishi Ward. About 730 m in a straight line from the estimated position of the house to its OpenStreetMap location.

Source
Sukiya

Beef bowl chain in Oaza Tsuchiya, Nishi Ward. About 840 m in a straight line from the estimated position of the house to its OpenStreetMap location.

Source

About This Property

This is a pre-owned detached house in Oaza Nishi-Asuma, Nishi Ward, Saitama City. It is an 11-minute walk (850 m) to Sashiogi Station on the JR Kawagoe Line and a 25-minute walk to Nishi-Omiya Station. ⚠️The lot number is not disclosed. By matching the distances to facilities given in the listing (Sashiogi Station 850 m, Sashiogi Hospital 1,000 m, Tsuchiya Junior High School 1,700 m, Mamiya-Higashi Elementary School 2,300 m) against the street photo and aerial photographs, we estimate that the house is in a housing development beside a ramp of Route 16 (Nishi-Omiya Bypass), west of Sashiogi Station; which lot within the development it occupies has not been determined. In straight-line distance from this estimated position to each store's OpenStreetMap location, there are a 7-Eleven (about 520 m), Hidakaya (about 730 m), Yaokatsu and Sukiya (about 840 m each) and Life (about 870 m). According to the listing, Sashiogi Kindergarten is 550 m away.

The house is a two-story wooden building completed in February 2023 (3 years 7 months old) with a 3LDK layout: a 17.7-tatami LDK and a 3-tatami tatami corner on the first floor, and three Western-style rooms of about 6 tatami each plus a balcony on the second floor. The land is 131.19 m² and the building 96.67 m² (both registered figures), held as freehold. The zoning is Category 1 Residential, with a 60% building coverage ratio and a 200% floor area ratio. The site faces two roads, a 6 m road on the north (frontage 2.7 m) and an 11 m road on the southwest (frontage 10.7 m), with no private road burden. It has public water, public sewerage, city gas and a parking space. The listing does not state the current occupancy; bicycles and play equipment appear in the exterior photo, so the house may be occupied. The handover date is negotiable.

Most of Oaza Nishi-Asuma is a multiplier-rate area, and road prices are set only for the blocks southeast of the Route 16 bypass and north of the Saitama-Kasukabe Line prefectural road. The estimated development lies in this zone, and we used the 2026 value of ¥94,000/m² (leasehold ratio D), the most common value on local streets in the zone. The same road rose from ¥89,000 in 2024 to ¥91,000 in 2025 and ¥94,000/m² in 2026. The southwest road (a frontage road running alongside the ramp) is ¥96,000/m², but because the exact lot has not been pinned down we used the modal value of ¥94,000/m². The building is only three years old and has a long remaining useful life, giving an assessed ratio of 96.5%. At the frontage road's ¥96,000/m² it would be 97.3%, and even at the lowest band in the zone, ¥88,000/m², it would be 94.1%. ⚠️Because the frontage on the north road is only 2.7 m, the northern part of the site may be a narrow strip. No lot plan is included in the listing, so the shape has not been confirmed, but even if that part (about 27 m²) were deducted the assessed ratio would be 88.6%.

As far as the photos show, the road inside the development on the north is flat, and the parking space and entrance approach are at the same level as the road. Beyond the frontage road to the southwest there is the ramp embankment with a concrete retaining wall, but it stands on the far side of the road and is not a retaining wall on the site boundary. We estimate the height difference around the site at about 0.3 m at most. There are no steps up from the road, the site is not a flag-shaped lot because it faces the southwest road for 10.7 m, and the house is detached and stands apart from its neighbors. Because the lot number and exact lot have not been confirmed, we recommend checking the lot plan and current condition with the broker.

Estimated Financing

Assessed value ¥30,699,160 → estimated loan ¥30,690,000 (97% of the asking price)

※ Actual loan availability, amounts and terms are subject to each bank's screening.

Suggested Lenders

関西みらい銀行
Regional bankAssessed-value focusedStrong with detached houses
土地から新築OK。 築古過ぎず、好立地で積算割合が高く、キャッシュフローが回る物件であれば、検討対象となる。 産休中はNG。 築古過ぎる場合は、信用金庫・信用組合のセゾンファンデックス保証付の不動産担保ローンが適す。
滋賀銀行
Regional bankAssessed-value focusedStrong with detached houses
土地から新築OK。 好立地で積算割合が高く、キャッシュフローが回る物件であれば、検討対象となる。 但し、産休中はNG。
信用金庫・信用組合のセゾンファンデックス保証付の不動産担保融資
Shinkin bankAssessed-value focusedStrong with detached houses
築古でも可。 築年数は問わず、土地の積算さえ出ていれば、20年程度の期間で融資してくれるケースが多い。 但し、立地が良くないと、担保評価が付かず取扱不可となる。 新築や築浅に関しても、建物の価値を適切に判断してくれる為、やりやすい。

※ General tendencies of lenders covering this area, for information only. This does not guarantee or suggest any specific financing outcome.

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