SUUMO API: Japan real estate data for property and relocation apps

Japan’s property market does not work like Western markets. People search by railway line and station before they search by neighbourhood, commute time is often the first filter, and listings are organised around wards and prefectures rather than postcodes. SUUMO is one of Japan’s largest property portals, and the SUUMO Japan Real Estate API gives you structured access to its rental and sale inventory, built around those realities.

What the SUUMO API covers

Rental and sale search - search rentals, or buy/sell listings across used condos, houses, and land. A unified search engine lets you query across property types in one call, and count endpoints return per-ward and per-station match counts for a prefecture.

Listing details - full detail for rentals, buy/sell listings, and new-condo projects. Each record includes layout and floor-plan information, rent or price, building details, nearest stations and walking distance, and listing media where available.

URL tools - resolve any SUUMO URL into full structured detail, or parse it to extract the listing type and codes without fetching the record. Useful for browser extensions, lead enrichment, and internal tools where users already have a SUUMO link.

Station and commute search - railway line and station master data by prefecture, plus a commute search that returns stations reachable within a chosen travel time and transfer count. This is the backbone of Japanese property search.

Reference and neighbourhood data - city and ward lists, a nationwide address master, postal-code lookup, and nearby facilities returned as GeoJSON for map overlays.

Agency profiles - real estate company and shop details by company code.

Querying the SUUMO API

const response = await fetch(
  'https://suumo-japan-real-estate.p.rapidapi.com/search-rentals?' +
  new URLSearchParams({
    prefecture: 'tokyo',
    ward: 'shibuya',
    min_rent: '80000',
    max_rent: '150000',
    page: '1',
  }),
  {
    headers: {
      'X-RapidAPI-Key': process.env.RAPIDAPI_KEY,
      'X-RapidAPI-Host': 'suumo-japan-real-estate.p.rapidapi.com',
    },
  }
);

const data = await response.json();
// listings with rent, layout, nearest stations, walking distance, and building details

Use the railway station and city endpoints first to resolve a line, station, or ward to the codes the search endpoints expect.

What you can build

Relocation tools - let users search homes by how far they are from a workplace station, using the commute search and station master data. This is the single most requested feature for Japan-focused housing products.

Property search apps - power a rental or sale UI with ward and station filtering, full listing detail, and similar-listing recommendations.

Map-based discovery - overlay listings and nearby facilities (stations, schools, shops) using the GeoJSON facility endpoint for a neighbourhood-first browsing experience.

Market analytics - track rental and sale inventory by ward and station over time, and enrich internal databases with SUUMO listing attributes.

Coverage

Nationwide Japan coverage across prefectures, cities, and wards, including Tokyo, Osaka, Kyoto, Yokohama, Nagoya, and Fukuoka, with railway station and address-level reference data.

Evaluating before subscribing

Test the SUUMO API directly on RapidAPI with a free-tier subscription. Check the response schema for rentals and sales against your integration before committing.

View the SUUMO Japan API → · Japan real estate data guide →