Sample valuation
Cheong Ip Building, Causeway Bay
HK$4.11M
25%
Band
width
HK$3.10M
to 5.13M
QUANT PROPERTY VALUATION

Same apartment.
Three valuations.
One you will actually sell for.

Property valuation, built quantitatively. One model, standardised inputs, an explainable output, and an honest confidence range. Hong Kong first.

1.5M+ LAND REGISTRY TRANSACTIONS / 51 DISTRICTS / 19,969 BUILDINGS INDEXED

How a valuation is builtLive pipeline
5
Checks
Filteredquality plus weight
30
Comps
Top comparablesscored
HK$4.11M
HK$3.10MHK$5.13M
A valuationwith its honest range
Figures from a QPV valuation run on a 360 sq ft Causeway Bay flat, 22 July 2026. Model-derived, not a certified valuation. Every valuation carries a confidence range set by the strength of the evidence.
WHAT IS QPV

A quantitative model for property, wherever the sales are on record.

QPV is an explainable, audit-trail-grade AVM. Market risk teams decompose an asset into standardised inputs, weight them, and output a price with a confidence range. We do the same for property. Inputs visible. Weights visible. Output is a band, not a guess. The method needs one thing: an official record of what property actually sold for. Hong Kong publishes one through the Land Registry, over 1.5 million transactions since 2016, which is why we built here first.

TRADITIONAL VALUATION
  1. Surveyor visits property
  2. Opinion based on experience
  3. Single number, no range
  4. Adjustment logic not written down
  5. Cannot be reproduced six months later
QPV VALUATION
  1. Transaction data filtered through 5 quality checks
  2. Top 30 comparables scored and weighted
  3. Output is a band, not a point
  4. Every weight and driver visible in the audit trail
  5. Reproducible from public inputs plus the QPV model
THE OUTPUT

A live valuation, end to end.

Every number carries a confidence range, with the comparables, quality scores, and audit trail behind it. This is the workspace. The valuation figures and comparables shown come from a QPV run on a 360 sq ft flat in Causeway Bay, 22 July 2026, model-derived and not a certified valuation. The two trend charts are illustrative.

See a sample reportHow accuracy is measured
Property parameters
Causeway Bay v
apartment v
360
Mid Floor v
Quality scores (0 to 10)
https://www.okay.com/property/
+ Add score from listing
5.5 /10
4.5 /10
6.0 /10
6.0 /10
4.5 /10
6.0 /10
Report summary
HKD 4,110,000
HKD 11,420/SF
point estimate  /  price per saleable sq ft
HK$ 3,100,000HK$ 5,130,000
confidence interval spread across 30 comparables
Subject
HKD 11,420/SF -23.3%
District median
HKD 14,898/SF
Building age
about 53 years
Divergence flags
Cross-district comparables used (Wan Chai)
CI width plus or minus 25% (evidence-derived)
Method: QPV comparables engine · 30 comparables · confidence moderate
Price vs quality score
250M150M50M 02550
apartmenthouse
Adj. price trend (monthly median)
18k12k6k 200620152024
median adjusted price per sq ft
Comparable transactionsRanked by similarity
DateFlSaleSizeAgeDistrictMatch
2023-0310/FHK$3.00M33760yWan Chaiexcellent
2024-087/FHK$2.80M33760yWan Chaiexcellent
2021-068/FHK$5.00M32660yWan Chaiexcellent
2018-069/FHK$4.73M30060yWan Chaiexcellent
2025-109/FHK$3.48M30060yWan Chaiexcellent
2020-0510/FHK$5.60M36753yWan Chaistrong
Score valuation
Causeway Bay · apartment · 360 SF · HKD 4,110,000
Q
Strengths
  • Anchored to 30 registered sales, not asking prices
  • Thirty comparables scored, the six closest shown, five rated an excellent match
  • Prime Causeway Bay, high transaction liquidity
  • All areas on a saleable-area basis, the HK legal standard since 2013
Considerations
  • Building age about 53 years, so the flat trades below newer stock
  • Estimate sits 23.3% below the district median, driven by age and size
  • Cross-district comparables used, so the confidence band is wider
  • Band width about plus or minus 25%, a moderate-confidence read
HONG KONG PRICE INDEX

The market, measured monthly.

One index built from 1.5M+ official Land Registry transactions, on a fixed monthly cadence. One number, one chart, one clean data point.

Illustrative / sample cadence
148.3
down 0.4% MoM  /  down 3.1% YoY
Base: Jan 2016 = 100
All HK residential, saleable-area basis
Live monthly figure wired from the QPV dataset before launch
2016201920222026
PROOF

Built and running.

1.5M+
Official Land Registry transactions
51
HK districts covered
19,969
RVD buildings indexed
10 yrs
Land Registry history, 2016 to 2025
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