Ichinomiya Town, Chosei County Housing Market Report 2025
Data updated 2026-11-10 · Source: MLIT transaction price survey, 2005 Q3–2026 Q2
Key figures for 2025
- Median house price (land + building)
- ¥21.0M
- Residential land per m² (sales)
- ¥19k/m²
- +5.6% over 5 years
- Transactions in 2025
- 58
- #25 of 47 areas in Chiba by price per m²
What the data says
Steady, predictable growth
House prices per m² have climbed about 7.5% a year, roughly in line with the previous five years. There is no sign of overheating or a sudden slowdown.
Outperforming Chiba
Per m², houses here are 36% below the Chiba average. The discount has shrunk from 53% ten years ago, so Ichinomiya Town, Chosei County is catching up with its surroundings.
Sales are picking up
There were about 9% more transactions in the last three years than the three before, so the market is liquid and selling later should be easier.
What a typical purchase costs
Half of all house sales last year were between ¥13.0M and ¥26.0M. Listings outside that range are either unusual properties or worth a closer look.
A shrinking population
The population fell 1.2% between 2020 and 2025 (−0.4% for the wider area). More people moved out than in during 2025 (about 73.8 per 1,000 residents), which weakens long-term housing demand. Households still grew 2.4% as people live in smaller households, which supports demand for smaller homes even as the population shrinks.
High earthquake risk
The government's seismic model gives a 58% chance of shaking of intensity 6-lower or stronger in the next 30 years (63% for the wider area). Check the building's earthquake standard (post-1981, ideally post-2000 for wooden houses) and consider earthquake insurance.
Living in Ichinomiya Town, Chosei County: people, homes and risks
- Population 2025
- 11,758
- -1.2% since 2020
- Chiba: -0.4%
- Net moves in 2025
- -868
- -73.82 per 1,000 residents
- Chiba: +1.25
- Strong earthquake risk
- 57.8%
- chance of shaking of intensity 6-lower or more within 30 years
- Chiba: 63.4%
- Official land price 2026
- ¥27k/m²
- +3.2% in a year · – in 5 years
- Chiba: ¥97k/m²
- Flood exposure
- 33.3%
- of 3 benchmark sites in a worst-case flood zone (0.0% 3 m or deeper)
- Chiba: 28.9%
- Tsunami exposure
- 66.7%
- of 3 benchmark sites in a tsunami inundation zone
- Chiba: 8.5%
- Landslide exposure
- 0.0%
- of 3 benchmark sites in a landslide warning area
- Chiba: 0.0%
Check flood, landslide and tsunami zones for a specific address on the government hazard map ↗
Sources: 2025 Census (preliminary), 2025 Internal Migration Report, 2023 Housing and Land Survey (Statistics Bureau of Japan); J-SHIS seismic hazard model (NIED, 2024); Land Price Publication (MLIT). Earthquake probability is measured at the municipal center.
Example sales in Ichinomiya Town, Chosei County
Real transactions from the last four quarters, picked near the lower (20th percentile), middle and upper (80th percentile) price points. Locations are shown at district level, as published by MLIT.
House
¥4.0M
¥89k/m²
- Arachi
- Kazusa Ichinomiya
- Land 530 m² · floor 45 m²
- Built 1967 (59 yrs) · Wood
¥21.0M
¥247k/m²
- Arachi
- Kazusa Ichinomiya
- Land 480 m² · floor 85 m²
- Built 2010 (15 yrs) · Wood
¥28.0M
¥187k/m²
- Torami
- Torami · 19 min walk
- Land 1200 m² · floor 150 m²
- Built 2017 (9 yrs) · Light steel
Show data table
| Year | House |
|---|---|
| 2007 | – |
| 2008 | – |
| 2009 | – |
| 2010 | – |
| 2011 | – |
| 2012 | – |
| 2013 | ¥14.0M |
| 2014 | ¥13.0M |
| 2015 | – |
| 2016 | ¥18.0M |
| 2017 | – |
| 2018 | ¥8.8M |
| 2019 | ¥13.0M |
| 2020 | ¥15.0M |
| 2021 | ¥11.0M |
| 2022 | – |
| 2023 | ¥11.0M |
| 2024 | ¥15.0M |
| 2025 | ¥21.0M |
Show data table
| Year | House | Land |
|---|---|---|
| 2007 | – | ¥13k/m² |
| 2008 | – | ¥17k/m² |
| 2009 | – | ¥22k/m² |
| 2010 | – | ¥21k/m² |
| 2011 | – | ¥20k/m² |
| 2012 | – | ¥15k/m² |
| 2013 | ¥100k/m² | ¥14k/m² |
| 2014 | ¥113k/m² | ¥16k/m² |
| 2015 | – | ¥18k/m² |
| 2016 | ¥160k/m² | ¥12k/m² |
| 2017 | – | ¥17k/m² |
| 2018 | ¥74k/m² | ¥16k/m² |
| 2019 | ¥86k/m² | ¥16k/m² |
| 2020 | ¥136k/m² | ¥18k/m² |
| 2021 | ¥95k/m² | ¥17k/m² |
| 2022 | – | ¥15k/m² |
| 2023 | ¥120k/m² | ¥11k/m² |
| 2024 | ¥158k/m² | ¥12k/m² |
| 2025 | ¥161k/m² | ¥19k/m² |
Prices near train stations in Ichinomiya Town, Chosei County
Sales from 2023–2025, grouped by nearest station.
| Station | Median used condo price | Condo price per m² | Median house price (land + building) | Walk (min) | Sales |
|---|---|---|---|---|---|
| Kazusa Ichinomiya (上総一ノ宮) | – | – | ¥15.0M | 14 | 65 |
| Torami (東浪見) | – | – | ¥22.0M | 23 | 12 |
How much does a house cost in Ichinomiya Town, Chosei County?
The median house sale, including the land, was ¥21.0M in 2025 across 25 sales.
Are property prices in Ichinomiya Town, Chosei County going up?
Over the five years to 2025, residential land prices changed +5.6%.
About this data
Figures are medians of real transactions reported to Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) through its quarterly price survey. House prices per m² divide the total price (land and building) by the floor area. Medians based on fewer than 20 sales are not shown. The latest quarters are preliminary and are revised as more survey responses arrive.
Information only, not investment advice.