AI Valuation Audit - The Concierge Protocol
Buying a yacht in Hong Kong is a process of clearing friction layers. We are a buyer-side intelligence unit. We don’t represent sellers. We represent the math.
Sample Audit Report · 52ft Flybridge
This is what your audit report looks like.
A complete sample report on one real vessel category. Same structure, same depth, same methodology you receive when you submit your own listing.
The vessel below is representative of a typical Hong Kong listing in the HK$10–15M range. Names and registration details have been anonymised. All numbers reflect real market data from our active database.
Subject Vessel
2017 · 52ft Flybridge Motor Yacht · Twin Diesel
Public Asking
HK$12.5M
As listed across HK broker platforms
Verified Fair Value
HK$10.6M
From private transaction database
Negotiation Delta
−15.2%
≈ HK$1.9M savings identified
MOD-01 // Valuation Engine
Independent valuation across four layers.
We baseline the vessel against age, engine hours, refit history, and verified comparable sales — stripping away broker markups one layer at a time until we reach a defensible Fair Market Value.
Valuation cascade · 52ft Flybridge · 2017 build
Sticker Price
HK$12.5M
Book Value
HK$11.8M
Engine-Adjusted
HK$11.1M
Fair Market Value
HK$10.6M
Identified negotiation room
−HK$1.9M
Comparable sales — last 18 months
Eight verified comparable transactions from our private database. Normalised for age, engine hours, refit status, and berth-included flag. Vessel IDs anonymised.
| Vessel ID | Year | Length | Engine hrs | Condition | Sold price | Normalised |
|---|---|---|---|---|---|---|
| A-2023-04 | 2016 | 50ft | 1,840 | Good | HK$9.8M | HK$10.4M |
| A-2023-09 | 2018 | 52ft | 1,620 | Excellent | HK$11.2M | HK$10.8M |
| A-2024-01 | 2017 | 52ft | 2,100 | Good | HK$10.4M | HK$10.5M |
| A-2024-03 | 2017 | 54ft | 1,950 | Good | HK$11.0M | HK$10.7M |
| A-2024-06 | 2016 | 52ft | 2,380 | Fair | HK$9.6M | HK$10.4M |
| A-2024-08 | 2018 | 50ft | 1,540 | Excellent | HK$10.8M | HK$10.7M |
| A-2024-11 | 2017 | 53ft | 1,880 | Good | HK$10.7M | HK$10.6M |
| A-2025-02 | 2017 | 52ft | 2,020 | Good | HK$10.5M | HK$10.5M |
Methodology · normalisation
Each comparable is adjusted for engine hours (HK$25k per 100hr over the median), condition tier (Excellent +HK$300k / Fair −HK$400k), and refit status. Vessels with HK berth included add HK$400k. The normalised median across eight comps is HK$10.6M — within ±2% of three independent comparables.
MOD-02 // DOM & Liquidity
Days on market: 437. The listing is stagnant.
When a vessel sits on the market this long with this pattern of price drops, the seller has structural pressure to negotiate. We measure exactly how much.
Days listed
437
Stagnant · 1.4× category median
Price drops
−11.2%
Across 3 reductions
Resale velocity
28 / 100
Slow exit · expect discount pressure
Listing history · price reduction sequence
Jan 2024
Listed
Initial listing across two HK broker platforms
HK$14.1M
May 2024
−5.7%
First reduction after 110 days unsold
HK$13.3M
Sep 2024
−3.8%
Second reduction; added on third platform
HK$12.8M
Jan 2025
−2.3%
Third reduction; listing fatigue setting in
HK$12.5M
Apr 2025
Stale
Listing crosses 365 days — flagged as stagnant
HK$12.5M
MOD-03 // Anomaly Detection
One vessel. Three platforms. Two prices.
Our scanner cross-references the listing across every major HK broker platform and global aggregator. When the same hull appears at different prices through different brokers, it is a structural signal — usually one we can negotiate against.
Platform A
Verified
HK$12.5M
Primary listing · Broker A · Original co-broker agreement
Platform B
Anomaly
HK$10.8M
Same hull ID, listed by Broker B · HK$1.7M lower
Platform C
Verified
HK$12.5M
Mirror of Platform A · Same broker, syndicated listing
Anomaly flagged
Duplicate hull across platforms — HK$1.7M price gap
The same vessel (matched by hull identification number and registration history) is being marketed by two different brokers at materially different prices. This typically indicates the seller has signed a non-exclusive agreement and is willing to accept the lower offer. For your negotiation: the HK$10.8M listing is the true floor. Anchor below it.
MOD-04 // Total Cost of Ownership
The real annual cost: HK$1.04M.
Mooring, crew, fuel, insurance, registration, refit reserves. A 52ft Flybridge in Hong Kong costs more to run for one year than most buyers budget for three. We model every variable before you sign the offer.
Total annual operating cost
HK$1.04M
Year one · realistic baseline
5-year projection: HK$5.6M cumulative
| Category | Line item | Annual cost |
|---|---|---|
| Berthing | HK private marina · 52ft slip · annual contract | HK$360k |
| Government Mooring waitlist position: 14 months · alternative scenario HK$76k/yr | — | |
| Mooring extras | Visitor berth allowance, fuel dock fees, club minimum spend | HK$76k |
| Berthing subtotal | HK$436k | |
| Crew | Part-time captain · 80 days/yr at HK$2,500/day | HK$200k |
| Maintenance | Quarterly service, antifouling, hull cleaning, electronics | HK$91k |
| Crew & maintenance subtotal | HK$291k | |
| Fuel | 200 hours operation @ HK$650/hr fuel consumption | HK$130k |
| Operations | Consumables, supplies, periodic surveys, sundries | HK$57k |
| Fuel & operations subtotal | HK$187k | |
| Insurance | Hull insurance + P&I · benchmarked across 3 HK underwriters | HK$98k |
| Licences | HK Marine Department registration, certificate renewals | HK$27k |
| Insurance & licences subtotal | HK$125k |
MOD-05 // Risk Flags & Strategy
What to watch for. What to offer.
Every audit ends with a list of material risks and a defensible negotiation position. Below is what this report concludes — and what we would recommend the buyer do next.
High
Berth not transferable with sale
The vessel’s current private marina berth is held in the seller’s individual name and is non-transferable. The buyer will need to secure independent berthing — either a 14-month Government Mooring waitlist position or a private marina contract at HK$360k/yr. Materially affects year-one carrying cost.
Medium
Engine hours above category median
2,020 hours is roughly 14% above the median for 2017-build comparable vessels. Not disqualifying — but warrants a thorough engine survey (compression test, fluid analysis) before any offer is finalised. We recommend an independent surveyor from our vetted list.
Note
Refit completed 2022 — value preserved
Hull repaint, electronics upgrade, and salon refit completed November 2022 at documented cost of HK$680k. Approximately HK$450k of that value is reflected in the Fair Market Value model. Positive credibility signal.
Recommended negotiation strategy
Anchor at HK$10.2M. Target HK$10.6M. Walk at HK$11.2M.
Opening offer
HK$10.2M
−18.4% from asking
Target close
HK$10.6M
Fair Market Value
Walk-away
HK$11.2M
Maximum defensible
Open at HK$10.2M — 4% below verified Fair Market Value. Use the duplicate-platform anomaly (HK$10.8M on Platform B) as primary justification. If the seller counters at HK$11.5M+, refer to the 437-day stagnant status and three previous reductions. Do not exceed HK$11.2M. Above that price, the negotiation delta no longer covers the non-transferable berth cost — and the buyer is structurally overpaying. Walk and revisit in 60 days; this listing is unlikely to move at current price.
Appendix // Methodology
How this report is built.
Our valuation methodology is open. The underlying dataset is not. We aggregate listing-level records continuously and keep that raw dataset private — what we publish are modelled estimates, not the records behind them. Full transparency at the methodology level; confidentiality at the dataset level.
Where the data comes from
- Every active, reduced, and withdrawn listing across the HK and regional brokerage market — monitored continuously, not sampled.
- The full public behaviour of each listing over time — not just the price shown today.
- Independent global aggregators, cross-referenced against the local market.
- A proprietary modelling layer that converts these public signals into an estimated value — the part we keep to ourselves.
Our estimates are modelled from public listing behaviour — not from verified sold-price records, for which no reliable, republishable source exists in Hong Kong. That is deliberate: we read what the market reveals in the open, rather than leaning on self-reported sold-price databases that are paywalled, gamed, and thin on Hong Kong coverage.
How Fair Market Value is calculated
For any given vessel, we identify 6–12 comparable listings from the last 18 months, normalise each one for engine hours, condition tier, refit status, and berth-included flag, and take the median of the normalised values. The result is a modelled Fair Market Value range with explicit confidence bounds. Typical spread across the comparable set: ±4.2%.
What this report does not do
The audit assesses pricing, liquidity, structural cost, and listing anomalies. It does not assess physical vessel condition — that is a surveyor’s job. We will not substitute our valuation for an independent survey, and we will not introduce you to a broker without one. The audit also does not predict future asset value; yachts depreciate, and any “investment” framing is the buyer’s call, not ours.
What changes if your vessel is different
The methodology is calibrated to vessels under serious consideration in the HK and APAC market, typically in the 35–80ft range and HK$3–30M price band. Vessels outside that range — imported European or US yachts, superyachts above 80ft, or commercial vessels — require additional analysis that sits outside the standard report.
See what your own audit looks like
This same report. Your listing.
Submit a yacht listing URL and we’ll return your audit within 48 hours. Same structure. Same depth. Same methodology. Free, buyer-side, no obligation.
No buyer fees. Ever. We are compensated only by vetted partners on completed transactions.
What does a yacht audit report include: the short answer
A One Blue Anchor audit report delivers an independent valuation across four layers, stripping away broker markups to reach a defensible Fair Market Value by comparing your target vessel against age, engine hours, refit history, and verified comparable sales. The report includes days-on-market analysis to identify seller pressure, anomaly detection that cross-references the same hull across platforms to uncover price gaps, total cost of ownership modeling covering berthing, crew, fuel, insurance and maintenance, and a list of material risks with a recommended negotiation strategy including opening offer, target close and walk-away price. Each audit uses the same structure, depth and methodology shown in the sample report.
Frequently asked questions
What does a One Blue Anchor audit report include?
The audit report includes an independent valuation engine that compares your vessel against verified comparable sales, days-on-market and liquidity analysis measuring seller pressure, anomaly detection that cross-references listings across platforms to identify price gaps, total cost of ownership modeling for berthing, crew, fuel, insurance and maintenance, and risk flags with a recommended negotiation strategy including opening offer, target close and walk-away price.
How is Fair Market Value calculated in the audit?
Fair Market Value is calculated by identifying six to twelve comparable listings from the last eighteen months, normalising each one for engine hours, condition tier, refit status, and berth-included flag, then taking the median of the normalised values. The result is a modelled Fair Market Value range with explicit confidence bounds and a typical spread across the comparable set of plus or minus four point two percent.
What does the audit report not cover?
The audit assesses pricing, liquidity, structural cost, and listing anomalies but does not assess physical vessel condition, which is a surveyor’s job. The report identifies negotiation room and cost structure but leaves mechanical inspection, hull integrity and systems assessment to an independent marine surveyor from a vetted list.