Is hazard risk low in Higashinada-ku?

At the three addresses checked (Okamoto 1-chome, Sumiyoshi-Miyamachi 1-chome, Fukaehama-cho), none fell inside a projected flood inundation zone or a landslide alert zone. That is a result for three coordinates, not an assessment of the ward: of the 27 districts in the ward with Q1 2026 transactions, 17 had representative points inside a flood inundation zone. Zones are designated per slope and per watercourse, so an adjacent lot can differ. Liquefaction ratings, by contrast, split: somewhat resistant at Okamoto, prone at Sumiyoshi-Miyamachi, very prone at Fukaehama. Check the street number of the property you are considering.

What does 'within the liquefaction tendency map' mean?

It means the point falls inside the area the map covers. It does not mean liquefaction will occur. The map spans wide areas, and points inside it can still be assessed as less prone. For a purchase decision, treat it not as a conclusion but as a reason to check whether a ground survey report exists and what the site's grading history is.

Higashinada-ku or Nishinomiya?

Public data does not settle it. In the retrieved figures, Higashinada-ku's median unit price is ¥462,500/m² against Nishinomiya's ¥414,286/m², and the 2050 projections are -11.7% and -9.1% respectively, so Nishinomiya declines more slowly. Whether you commute to Sannomiya or Osaka changes the picture too. The numbers narrow the shortlist; they are not the answer.

As of when are these figures?

Transaction prices are Q1 2026 closings, population is the 2020 national census, and the 2050 figure is the official future population projection. Data was retrieved on September 4, 2026.

Buying a home in Higashinada-ku — how to read an all-clear hazard result

Running SafeLand on three addresses in Higashinada-ku, Kobe, none fell inside a projected flood inundation zone or a landslide alert zone.

A clean result like that is the easiest kind to misread. This article shows the retrieved figures and then works through how an all-clear should actually be handled in a purchase decision.

What this article shows

Where Higashinada-ku sits on price and 2050 population among five Hanshin areas
Actual hazard results for three addresses (Okamoto, Sumiyoshi-Miyamachi, Fukaehama)
What "within the liquefaction tendency map" does and does not mean
What still needs checking when everything comes back clear

Where it sits among five areas

Q1 2026 closings were retrieved per area and the median price per square metre computed. The table is ordered by mildest projected population decline first.

Area	Median ¥/m²	Deals	2020 pop.	2050 change
Nishinomiya	¥414,286	131	485,587	-9.1%
Higashinada-ku, Kobe	¥462,500	64	213,562	-11.7%
Ashiya	¥560,000	31	93,922	-12.2%
Takarazuka	¥220,000	64	226,432	-13.0%
Amagasaki	¥330,000	105	459,593	-14.3%

Higashinada-ku comes second at ¥462,500/m², behind Ashiya at ¥560,000/m² and above Nishinomiya at ¥414,286/m².

This is not a land price.

It is transaction total divided by area, with land, houses, and condominium units mixed together, over a single quarter.

Projected population in 2050

The projection takes Higashinada-ku from 213,562 (2020) to 188,542 (2050), a change of -11.7% — the second mildest of the five behind Nishinomiya (-9.1%). All five decline.

A 35-year mortgage taken today is repaid around 2060, so the decision is made against the neighborhood of several decades from now, not today's convenience.

Results for three addresses

Three deliberately different locations were checked on September 11, 2026: the Rokko side, the centre of the ward, and reclaimed land on the coast.

Address	Flood zone	Landslide zone	Liquefaction tendency	Flagged
Okamoto 1-chomeRokko side, around Hankyu Okamoto Station	—	—	Somewhat resistant	1 / 16
Sumiyoshi-Miyamachi 1-chomeAround JR Sumiyoshi Station, central area	—	—	Prone	2 / 15
Fukaehama-choReclaimed land on the seaward side	—	—	Very prone	2 / 16

None of the three fell inside a flood or landslide zone — the same result on the hillside at Okamoto and on the reclaimed land at Fukaehama. Liquefaction, however, splits sharply: the tendency map rates Okamoto as somewhat resistant, Sumiyoshi-Miyamachi as prone, and Fukaehama as very prone.

How to read "within the map"

This is the part most often misread. Falling within the liquefaction tendency map does not mean liquefaction will occur.

The map covers wide areas and spans grades from very prone to resistant. These three points are all inside it, yet their ratings run from somewhat resistant to very prone. Treating inclusion as danger — or lumping all three together as fine — misreads the data. The grade is what matters.

Use it as a reason, not a conclusion: not "inside the map, so don't buy", but "inside the map, so read the ground survey report and the grading history". The actual ground at a specific site is knowable only from that site's survey, never from the map.

The trap of an all-clear result

When results come back clear, it is tempting to conclude the ward is safe. That overreaches in two ways.

Three addresses are not an assessment of the ward. Zones are designated per slope and per watercourse. Okamoto 1-chome falling outside does not mean Okamoto does. The adjacent lot can differ.
Some items could not be retrieved. Of these three points, nearest-library data was unavailable for Sumiyoshi-Miyamachi. Unavailable is not the same as fine. Unknown stays unknown.

In fact, the ward as a whole says the opposite. Checking the 27 Higashinada districts with Q1 2026 transactions one by one, 17 (63%) had representative points inside a flood inundation zone (Kobe's 9 wards compared). Okamoto's own district point is inside one. The three points here simply missed; this does not make Higashinada low-flood.

Public data answers "is this inside a designated zone", not "is this building safe". The first is free to check. The second is knowable only on site and in the documents.

What to verify before buying

Is there a ground survey report, and what is the grading history? The seaward points, Sumiyoshi-Miyamachi and Fukaehama, are rated prone and very prone — not a conclusion, but a reason to ask.
Have you checked zone designation at the actual street number? The three results here are not your property's result.
Where in the statutory disclosure will hazard information appear? Asking early avoids learning it at signing.
Ask for comparables of the same type and size. The unit price here mixes property types.

Building condition, sunlight, noise, and neighbors are not knowable from any of this data. Check them on site and with the agent.

Sources and definitions

Unit price: MLIT Real Estate Information Library (transaction price information), Q1 2026. Median of transaction total ÷ area. Property types mixed.
Population: 2020 national census, Statistics Bureau (via e-Stat)
2050 projection: official future population projection (via e-Stat)
Flood / landslide / liquefaction: point data from the MLIT Real Estate Information Library, evaluated at each address's coordinates.
Data retrieved: September 4, 2026