Transparent formulas. Dated sources. Visible limitations.
JPI exists to improve the questions asked before a property decision.
We combine official market context with a consistent editorial framework. We do not present developer claims, agent advertising or model outputs as guaranteed outcomes.
JPI Zone Score
| Factor | Weight | Question |
|---|---|---|
| Demand depth | 25% | How broad and durable is the tenant and owner-occupier pool? |
| Entry value | 20% | Is pricing supported by comparable completed utility? |
| Yield resilience | 20% | Does net income survive conservative rent and vacancy? |
| Supply resilience | 15% | How much directly competing stock exists or is completing? |
| Connectivity | 10% | Does real door-to-destination travel support demand? |
| Exit liquidity | 10% | Who is the likely future buyer, and how deep is that pool? |
Ratings of 75–100 are strong screens, 65–74 selective, 55–64 evidence gaps and below 55 high caution. Project-level facts replace zone-level assumptions.
ROI formulas
- Gross yield: annual asking rent ÷ purchase price.
- NOI: effective annual rent after vacancy minus recurring operating costs.
- Net yield: NOI ÷ purchase price.
- DSCR: NOI ÷ annual mortgage debt service.
- Cash-on-cash: annual pre-tax cashflow ÷ initial cash required.
- Stress case: rent −10%, rate +0.75 percentage points and operating costs +10%.
Source policy
Primary sources are preferred: NAPIC/JPPH, Bank Negara Malaysia, Singapore Land Transport Authority, MIDA, Singapore EDB, Johor land authorities and LHDN. Every market page shows an update date. Secondary sources may help discover a dataset but are not used to invent unavailable precision.
Editorial accountability and corrections
JPI maintains a versioned source register, visible review dates and a release record for material website changes. A correction request can be submitted through the private project-review form by naming the page, disputed statement and supporting primary source. The operator reviews evidence before changing a published conclusion; advertisers cannot approve or veto editorial corrections.
Advertising boundary
Paid placements will be labelled. Advertising does not buy a JPI score, recommendation or removal of material risk language. Agents remain responsible for licensing, claims, listing authority and current project information.