Korea Real Estate Transactions - 국토부 실거래가

What does Korea Real Estate Transactions do?

Korea Real Estate Transactions fetches official property deal records from the Ministry of Land, Infrastructure and Transport (국토교통부) public API — the authoritative government source for Korea real estate transactions. It returns actual transaction prices (실거래가) for apartment purchases, apartment rentals (전세/월세), villa (연립·다세대), and officetel deals, filtered by legal district code (법정동) and month. This Korean apartment price tracker replaces manual lookups on rt.molit.go.kr with a structured, automated data pipeline.

Unlike real estate portals that show asking prices or aggregated indices, this actor returns every individual deal registered with the government — exact price, floor, area, and building name — making it the most granular Seoul housing data API available.

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Why use Korea Real Estate Transactions?

• Property price benchmarking — Pull every apartment transaction in a district to compute actual price-per-sqm distributions, not just portal estimates
• Investment analysis and deal sourcing — Screen districts for undervalued transactions relative to recent comps and identify pricing outliers
• Rental market research — Compare 전세 (jeonse) deposit levels and 월세 (monthly rent) trends across neighborhoods and building types
• Real estate fintech and proptech — Power automated valuation models (AVMs), market dashboards, or mortgage risk systems with official government transaction data
• Academic and policy research — Analyze the impact of government regulations on apartment prices in Seoul, Gangnam, or any region using verified deal records

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How to use Korea Real Estate Transactions

1. Register a free API key at data.go.kr and apply for access to the RTMSDataSvc dataset (approval is typically instant)
2. Open the actor on Apify and enter your service_key
3. Choose a property_type: apartment_buy, apartment_rent, villa_buy, villa_rent, officetel_buy, or officetel_rent
4. Enter one or more region_codes (5-digit 법정동 코드 — e.g. 11680 for Gangnam-gu, 11 for all Seoul)
5. Set deal_months as an array of YYYYMM strings (e.g. ["202408", "202409"])
6. Click Start — the actor paginates automatically across all region/month combinations
7. Download results as JSON or CSV, or connect via Apify API

How to get a data.go.kr API key:

1. Visit data.go.kr and create a free account
2. Search for "국토교통부 아파트매매 실거래 자료"
3. Click "활용신청" — approval is usually instant
4. Copy your serviceKey from 마이페이지 > 개발계정

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Input

Field	Type	Required	Description
service_key	string	Yes	API key from data.go.kr
property_type	string	Yes	apartment_buy, apartment_rent, villa_buy, villa_rent, officetel_buy, officetel_rent
region_codes	string[]	Yes	5-digit 법정동 codes. 11 = all Seoul, 11680 = Gangnam-gu, 11110 = Jongno-gu
deal_months	string[]	Yes	Months to query in YYYYMM format (e.g. ["202408", "202409"])
max_results	integer	No	Max records returned (default: 1,000)

Common region codes

Region code	Area
11	Seoul (all)
11680	Gangnam-gu
11110	Jongno-gu
11200	Seongdong-gu
11380	Eunpyeong-gu
41135	Seongnam-si Bundang-gu

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Output

Example: apartment_buy transaction

[
  {
    "property_type": "apartment_buy",
    "region_code": "11680",
    "deal_year_month": "202408",
    "name": "래미안퍼스티지",
    "area_sqm": 84.97,
    "floor": 12,
    "deal_amount_krw": 2850000000,
    "deal_date": "2024-08-05",
    "address": "개포동 1217",
    "rent_type": null,
    "deposit_krw": null,
    "monthly_rent_krw": null
  },
  {
    "property_type": "apartment_rent",
    "region_code": "11110",
    "deal_year_month": "202409",
    "name": "경희궁자이",
    "area_sqm": 59.9,
    "floor": 7,
    "deal_amount_krw": null,
    "deal_date": "2024-09-12",
    "address": "교북동 10",
    "rent_type": "전세",
    "deposit_krw": 700000000,
    "monthly_rent_krw": 0
  }
]

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Data fields

Field	Type	Description
property_type	string	Input property type (e.g. apartment_buy)
region_code	string	5-digit 법정동 code queried
deal_year_month	string	YYYYMM of the registered transaction
name	string	Building / complex name (단지명)
area_sqm	float	Exclusive area in square meters (전용면적)
floor	integer	Floor number of the unit
deal_amount_krw	integer	Purchase price in KRW (buy records)
deal_date	string	ISO date of transaction registration
address	string	Legal address (지번)
rent_type	string	"전세" or "월세" (rent records only)
deposit_krw	integer	Jeonse or deposit amount in KRW (rent records)
monthly_rent_krw	integer	Monthly rent in KRW (월세 records only)

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Cost estimation

Event	Price	Example
Actor start	$0.001	One-time per run
Per transaction record	$0.001	—
1,000 records	$1.001	~1 district, 1 month, full dataset
5,000 records	$5.001	Multi-district quarterly pull
10,000 records	$10.001	Seoul-wide monthly snapshot

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FAQ

Do I need a paid API subscription for data.go.kr? No. The RTMSDataSvc API is completely free — you just need to create an account and apply for access. Approval is typically instant. There is no paid tier required.

How recent is the transaction data? The Ministry of Land updates the database approximately monthly. Very recent transactions (last 2–4 weeks) may not yet appear. For confirmed registered deals from a given month, query 4–6 weeks after the period ends.

Can I pull all of Seoul at once? Yes — use region code 11 for all of Seoul. Be aware that this produces a very large result set (tens of thousands of records per month) and will take longer to run. Use max_results to cap the output, or query district by district (e.g. 11680 for Gangnam-gu) for targeted analysis.

Disclaimer: This actor accesses publicly available Korea real estate transaction data from the Ministry of Land, Infrastructure and Transport (국토교통부) open API. The developer is not affiliated with the Korean government or any real estate platform. All prices are official registered transaction records and reflect past deals, not current market values.

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Keywords: Korea real estate transactions, Korean apartment price tracker, Seoul housing data API, 국토부 실거래가, 아파트 실거래가, 법정동, jeonse tracker, Korean property market, 국토교통부 API, apartment deal data Korea

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Related actors

• KOSIS Macro Indicators — Korean statistical indicators (household income, mortgage rates) to contextualize property price data
• Korea Card Spending — Consumer spending patterns to pair with real estate transaction volumes
• Korea Exchange Pulse — Korean financial market data affecting mortgage rates and property investment sentiment

Feedback

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