[GIS] Looking for GIS dataset of Japan which includes smaller areas

datajapan

I have found several sources for GIS shp files which include Prefectures and Cities in Japan, these go to the Ward level i.e Tokyo > Shibuya-ku. What I am looking for is data that includes smaller areas within Wards, i.e Tokyo > Shibuya-ku > Harajuku

I have spent a long time looking around with no luck, does anyone have an idea where I can find this data?

Best Answer

According to OSM's wiki on Japan, OSM holds data for major and minor neighborhoods. You can download those data via the Overpass API by using the QuickOSM plugin from QGIS or by using the Overpass Turbo web application.

From the QuickOSM plugin, you can provide the required parameters in an interactive and quite intuitive GUI. The required key-value pair is

admin_level: 9

for major neighborhoods or

admin_level: 10

for minor neighborhoods.

If you would like to use the Overpass Turbo application, you can provide the following query:

<osm-script>
    <id-query {{geocodeArea:Japan}} into="area_0"/>
    <union>
        <query type="relation">
            <has-kv k="admin_level" v="9"/>
            <area-query from="area_0"/>
        </query>
    </union>
    <union>
        <item/>
        <recurse type="down"/>
    </union>
    <print mode="body"/>
</osm-script>

Of course, you can change Japan to a smaller area and change the administrative level by using v="10" instead of v="9" in has-kv k="admin_level".

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