How the Vivalty
investment score
is calculated.
Every property on Vivalty is rated 0–100 across six factors. We don't hide the formula and we don't invent numbers. This page documents the exact weights, source data and confidence levels behind every figure you see on a listing page.
Each property's score is the sum of six explainable factors.
Rental yield
Gross rental yield estimated from city benchmarks and the asking price. Each 1% of yield earns 5 points, capped at 40.
Rental demand
Local rental demand classification (low / medium / high) tied to the city, with country fallback when city signal is unavailable.
Market trend
Twelve-month price trend (declining / stable / growth). Growing markets earn the full 20 points.
Value for money
Implied price per m² versus the city benchmark. Up to +10 when priced ≥15% below city average; −8 when priced ≥25% above.
Verification
Editorial review by Vivalty's investor desk. +5 when the listing has been verified.
Country / city risk
Subtracted from the raw score — up to −18 points for elevated jurisdiction risk.
The maths in one line.
score = clamp(0, 100, yield + demand + trend + value + verification − risk)
Each component caps at the maximum points listed above. We persist the breakdown alongside the score, so any dispute can be re-traced to the source inputs.
We tell you how sure we are.
Every listing carries a confidence pill so you instantly know whether the score is grounded in verified, estimated or country-baseline data.
City-level data + listing-level data are both present and recent.
Some city or listing inputs use country-level fallbacks — refine with admin overrides.
Only country baseline data is available. Yield, demand and trend are country-wide.
Every number traces back to its source.
We rebuild the pricing, yield and risk benchmarks from a documented stack of public, institutional and proprietary inputs. No black-box scraping.
Public market benchmarks
- INSEE & Notaires de France (FR pricing)
- ONS / Land Registry (UK pricing)
- Idealista, Tinsa & INE (ES pricing)
- Wüest Partner & SNB (CH pricing)
- Idealista.it & OMI (IT pricing)
- DXB Land & Property Monitor (AE pricing)
- Confidencial Imobiliário & INE (PT pricing)
Rental yield references
- Country and city-level yield benchmarks (admin-curated)
- Listing-level yield estimates derived from asking price ÷ market rent
- Tourist short-let benchmarks for Algarve, Florence, Dubai
Macro & risk inputs
- OECD & IMF country economic outlooks
- ECB & SNB policy rate guidance
- Local property tax / acquisition fee schedules
Vivalty proprietary signals
- Editorial verification by the Vivalty investor desk
- Agency credential checks
- User-engagement signal aggregation (saved, viewed, contacted)
Important disclosures
- Vivalty is a real-estate marketplace and information service. We are not a regulated investment advisor; the score is a research tool, not a personalised recommendation.
- Past performance and modelled projections are not guarantees. Projections rely on country-level appreciation and tax assumptions documented in the simulator.
- Listings sourced from third-party agencies may contain inaccuracies. Always verify the title deed, tax position and rental contracts directly with the listing agency before purchasing.
- Currency, capital gains and exit-tax treatment depend on your jurisdiction. Consult a qualified international tax advisor before committing capital.
Want a methodology deep-dive?
Our investor-relations desk will walk you through the underlying datasets and weight calibration process — useful for family offices and institutional partners.