Kamogawa, Chiba
Photo: Kamogawa, Chiba · wanderplans.com / Unsplash

Minamiboso City 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)
¥5.8M
Residential land per m² (sales)
¥9k/m²
+122.5% over 5 years
Transactions in 2025
116
#39 of 47 areas in Chiba by price per m²

What the data says

Price growth is speeding up

House values per m² have risen about 0.7% a year over the past five years, faster than the 8.5% a year of the five years before. Buyers waiting for a dip have so far been paying more each year, and that has not yet changed.

Lagging Chiba

Per m², houses here are 76% below the Chiba average. Ten years ago the gap was 58%, so Minamiboso City has been falling behind the rest of Chiba.

What a typical purchase costs

Half of all house sales last year were between ¥3.0M and ¥13.0M. Listings outside that range are either unusual properties or worth a closer look.

A shrinking population

The population fell 11% between 2020 and 2025 (−0.4% for the wider area). Moves in and out roughly balanced in 2025.

Many abandoned homes

29.5% of homes were empty in 2023 (12.3% for the wider area), and 12.5% were empty without being for rent, for sale or used as second homes. That is a high share of truly abandoned homes (akiya), a sign of weak demand. Cheap houses are easy to find, but resale can be slow. About 11.4% of homes are second homes, which points to a resort or holiday-home market.

Moderate earthquake risk

The government's seismic model gives a 35% chance of shaking of intensity 6-lower or stronger in the next 30 years (63% for the wider area). Post-1981 buildings are designed for this level of shaking, but check ground conditions and insurance.

Living in Minamiboso City: people, homes and risks

Population 2025
31,895
-11.0% since 2020
Chiba: -0.4%
Net moves in 2025
-19
-0.6 per 1,000 residents
Chiba: +1.25
Vacant homes (2023)
29.5%
12.5% empty and not for rent or sale
Chiba: 12.3%
Median rent (2023)
¥45k
per month, all rented homes
Chiba: ¥60k
Strong earthquake risk
34.8%
chance of shaking of intensity 6-lower or more within 30 years
Chiba: 63.4%

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 Minamiboso City

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

Lower-priced2026 Q1

¥1.6M

¥32k/m²

  • Tomiurachomiyamoto
  • Tomiura(Chiba)
  • Land 145 m² · floor 50 m²
  • Built 1993 (33 yrs) · Wood
Typical2025 Q4

¥5.5M

¥20k/m²

  • Chikurachohedate
  • Chikura
  • Land 350 m² · floor 270 m²
  • Built 1985 (40 yrs) · Wood
Higher-priced2026 Q2

¥12.0M

¥92k/m²

  • Shirahamachotakiguchi
  • Tateyama(Chiba)
  • Land 300 m² · floor 130 m²
  • Built 2005 (21 yrs) · Wood
Median transaction price by year
¥0¥5.0M¥10.0M¥15.0M2007200920112013201520172019202120232025
Show data table
YearHouse
2007¥12.0M
2008¥8.6M
2009¥8.0M
2010¥10.0M
2011¥9.3M
2012¥7.3M
2013¥8.0M
2014¥7.8M
2015¥6.0M
2016¥6.0M
2017¥4.5M
2018¥6.5M
2019¥6.7M
2020¥6.0M
2021¥6.6M
2022¥7.3M
2023¥5.0M
2024¥6.0M
2025¥5.8M
2026 (partial)¥5.4M
Median price per m² by year
¥0¥50k¥100k¥150k2007200920112013201520172019202120232025
Show data table
YearHouseLand
2007¥127k/m²¥13k/m²
2008¥100k/m²¥16k/m²
2009¥92k/m²¥19k/m²
2010¥108k/m²¥16k/m²
2011¥75k/m²¥15k/m²
2012¥83k/m²¥15k/m²
2013¥85k/m²¥12k/m²
2014¥93k/m²¥12k/m²
2015¥89k/m²¥14k/m²
2016¥69k/m²¥12k/m²
2017¥55k/m²¥10k/m²
2018¥66k/m²¥9k/m²
2019¥59k/m²¥13k/m²
2020¥57k/m²¥4k/m²
2021¥65k/m²¥10k/m²
2022¥84k/m²¥12k/m²
2023¥59k/m²¥14k/m²
2024¥62k/m²¥12k/m²
2025¥59k/m²¥9k/m²
2026 (partial)¥45k/m²–
Price per m² by building age (2021–2025 sales)
¥0¥20k¥40k¥60k¥80k31333537394143454749
Show data table
Building age (years)House
31¥69k/m²
50¥34k/m²

Prices near train stations in Minamiboso City

Sales from 2023–2025, grouped by nearest station.

StationMedian used condo priceCondo price per m²Median house price (land + building)Walk (min)Sales
Chikura (千倉)––¥4.8M1939
Tateyama(Chiba) (館山)––¥7.5M–35
Tomiura(Chiba) (富浦(千葉))––¥4.8M1430
Iwai (岩井)––¥12.5M1630
Wadaura (和田浦)––¥5.0M1615
Minamihara (南三原)––¥3.8M2315

How much does a house cost in Minamiboso City?

The median house sale, including the land, was ¥5.8M in 2025 across 61 sales.

Are property prices in Minamiboso City going up?

Over the five years to 2025, residential land prices changed +122.5%.

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.