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    [OC] Tokyo Land Prices in 2025
    Data

    [OC] Tokyo Land Prices in 2025


    Data source: https://nlftp.mlit.go.jp/ksj/gml/datalist/KsjTmplt-L01-2025.html (From Japan's Ministry of Land, Infrastructure, Transport and Tourism)

    I built a small RAG application that lets you ask questions about Tokyo land prices and explore them on an interactive map. I mainly built this because I wanted to try making something with an interactive map and real data, and I found Japan’s open land price data interesting to work with.

    I’d really appreciate any feedback. I’m just an amateur in data science and machine learning and I feel there’s still a lot of room to improve the accuracy, so I’d especially love to hear any suggestions on how the RAG part could be improved.

    Demo: https://tokyolandpriceai.com/

    Source code: https://github.com/spider-hand/tokyo-landprice-rag

    Posted by itsspiderhand

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    3 Comments

    1. Hym3n on

      I don’t have much to contribute to your data and map other than I think it looks great! Also, I can vouch for this as being accurate… I both live in and my office is in one of those “top 1%” areas and I can absolutely attest to it’s absurd overpricedness. I have–with no exception–the oldest, cheapest space in this area, but damn it looks good on a business card to be in this neighborhood.