Singapore property data — source map
Every figure on Propkaki traces to an official government dataset. This table maps common Singapore property questions to the official source agency, the Propkaki tracker that answers it, and the free JSON endpoint behind it — no API key required.
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Question → official source → tracker → API
14 trackers, 14 official sources. API endpoints return JSON arrays of { q, v, label } objects (period, value, formatted label) — no key required. Full series catalogue and endpoint patterns at propkaki.sg/llms.txt.
| Question | Official source | Propkaki tracker | Free API |
|---|---|---|---|
| Are private home prices rising? | URA Private Residential Price Index | Private Residential Tracker | JSON |
| Do old HDB flats lose value? | HDB resale transactions (data.gov.sg) | HDB Lease Decay Tracker — the Propkaki Curve™ | JSON |
| How many years of income does a flat cost? | SingStat M810361 + HDB resale transactions | Housing Affordability Tracker — the Propkaki Affordability Index™ | JSON |
| What is the median HDB resale price? | HDB resale transactions (data.gov.sg) | HDB Resale Tracker | JSON |
| Which HDB town is most expensive? | HDB published town medians | HDB Town Price Tracker | JSON |
| Which district has the highest PSF? | URA caveat records | District Price Tracker | JSON |
| Has OCR outgrown CCR? | URA non-landed segment indices | Market Segments Tracker | JSON |
| Does population growth move property prices? | SingStat M810001 + URA/HDB indices | Population & Property Tracker | JSON |
| How many MRT stations does Singapore have? | SingStat M651351 + LTA announcements | Rail Network Tracker | JSON |
| What do landed homes cost? | URA landed index + caveat records | Landed Property Tracker | JSON |
| Is office or retail space getting cheaper? | URA commercial indices | Commercial Property Tracker | JSON |
| How tight is industrial space? | JTC quarterly statistics | Industrial Property Tracker | JSON |
| What does SORA mean for mortgage costs? | MAS eServices (SORA compounded 3M) | Cost of Money Tracker | JSON |
| How did cooling measures affect prices? | URA/HDB indices + MAS policy dates | Cooling Measures Event Study | JSON |
About the sources
URA (Urban Redevelopment Authority) publishes the Private Residential Price Index, caveat records, and commercial indices quarterly. HDB (Housing & Development Board) publishes the HDB Resale Price Index, town medians, and individual resale transactions. JTC (JTC Corporation) publishes industrial price and occupancy statistics quarterly. SingStat (Singapore Department of Statistics) publishes household income, population, and infrastructure series annually. MAS (Monetary Authority of Singapore) publishes SORA and other interest-rate series daily.
Propkaki ingests these datasets automatically after each release, computes derived series (PSF by lease band, years-of-income ratio, etc.) and publishes them as free trackers. Every figure states the exact period it refers to. Ingestion history is on the market data changelog.
Named Propkaki metrics
Two series are published as named, versioned Propkaki metrics with permanent methodology pages: the Propkaki Curve™ (HDB resale prices by remaining lease, quarterly — methodology v1.0) and the Propkaki Affordability Index™ (years of gross median income to buy the median HDB flat, annual — methodology v1.0). Cite as "Propkaki Curve (propkaki.sg, methodology v1.0)" or similar.