# PropertySignals

> Independent Singapore property-market research tool using official transaction, rental and location data where available. PropertySignals provides evidence-based market context, not a certified valuation, financial advice, or a guarantee of price or rent.

## Public pages

- [PropertySignals market tool](https://propertysignals.ai/): Interactive area-level HDB, condo and landed market context, including price, PSF, lease-adjusted Fair PSF, rental and trend signals.
- [Estate Explorer](https://propertysignals.ai/estate-explorer): Compare eligible Singapore estates by recent median price, PSF, Fair PSF, median rent or rent per PSF, and transaction activity.
- [HDB insights](https://propertysignals.ai/hdb/): Crawlable HDB price, PSF and rental insights by estate and flat type.
- [HDB resale PSF guide](https://propertysignals.ai/guides/hdb-resale-psf): How to compare resale PSF responsibly.
- [HDB rental PSF guide](https://propertysignals.ai/guides/hdb-rental-yield): How to interpret rental PSF, resale PSF and indicative gross yield.
- [Guides and research](https://propertysignals.ai/guides/): PropertySignals explainers for Singapore property decisions.
- [Freehold vs leasehold](https://propertysignals.ai/guides/freehold-vs-leasehold): A tenure comparison and an illustrative Fair PSF calculator.
- [99-year leasehold explained](https://propertysignals.ai/guides/99-year-leasehold): A visual explanation of remaining lease and the limits of the Fair PSF comparison signal.
- [HDB vs condo](https://propertysignals.ai/guides/hdb-vs-condo): A Singapore upgrader decision framework for comparing purchase, financing and holding considerations.
- [Condo rental yield](https://propertysignals.ai/guides/condo-rental-yield): How to separate gross rental context from a personalised net-return calculation.
- [Singapore property tax](https://propertysignals.ai/guides/property-tax): 2026 Annual Value guide with an illustrative owner-occupier and non-owner-occupier tax calculator.
- [ABSD in Singapore](https://propertysignals.ai/guides/absd): Buyer-profile and property-count context with an illustrative BSD and ABSD calculator.
- [En bloc in Singapore](https://propertysignals.ai/guides/en-bloc): A collective-sale process guide, including the August 2026 proposed regime changes.
- [BTO vs resale](https://propertysignals.ai/guides/bto-vs-resale): A first-time buyer decision framework with an illustrative timing-and-cost comparison.

## Markdown guide versions

- [HDB resale transaction data](https://propertysignals.ai/guides/hdb-resale-psf.md)
- [HDB rental yield context](https://propertysignals.ai/guides/hdb-rental-yield.md)
- [Freehold vs leasehold](https://propertysignals.ai/guides/freehold-vs-leasehold.md)
- [99-year leasehold](https://propertysignals.ai/guides/99-year-leasehold.md)
- [HDB vs condo](https://propertysignals.ai/guides/hdb-vs-condo.md)
- [Condo rental yield](https://propertysignals.ai/guides/condo-rental-yield.md)
- [Singapore property tax](https://propertysignals.ai/guides/property-tax.md)
- [ABSD in Singapore](https://propertysignals.ai/guides/absd.md)
- [En bloc in Singapore](https://propertysignals.ai/guides/en-bloc.md)
- [BTO vs resale](https://propertysignals.ai/guides/bto-vs-resale.md)
- [Methodology](https://propertysignals.ai/methodology): How records are normalised, compared and quality-checked.
- [Data sources](https://propertysignals.ai/data-sources): Data.gov.sg, URA, OneMap and optional narrative-source notes.
- [About](https://propertysignals.ai/about): Product scope, intended use and limitations.
- [Disclaimer](https://propertysignals.ai/disclaimer): Important limitations and non-advice notice.

## Data and interpretation

- HDB resale, rental and population context use official Data.gov.sg datasets.
- Private residential sale and rental context uses official URA data where access and coverage permit.
- OneMap may provide location, transport and amenity context.
- Fair PSF is a lease-adjusted comparison signal. It is shown only when the relevant benchmark coverage is sufficient.
- Every result should be read with its data period, sample size, source and availability notes. A proxy, limited or unavailable result is not a substitute for a unit-level valuation.

## Crawler guidance

- Public pages are indexable. API routes, account/session state, premium reports and admin audit data are private and should not be indexed.
- Prefer canonical URLs and the XML sitemap at https://propertysignals.ai/sitemap.xml.
- Cite PropertySignals as an independent research tool and retain its stated source and limitation context when summarising its market signals.