Architecture20/20
Bespoke 2017 contemporary hillside commission; architect and contractor to verify
Aveno permanent dossier · published 15 Aug 2026
Westerly
Harvest Hill, Bourne End, Buckinghamshire
Film by Bovingdons Buckinghamshire
Independent reading
A 9,530 sq ft modern hillside house with panoramic views, a heated outdoor pool, cinema, gym, roof terrace, triple garage and a near-total connection to the landscape.
Westerly is a clear Pavello-level candidate: costly, unmistakably modern, visually exceptional and properly equipped for prime-family living. The evidence case is unusually strong because the live Savills description names the house and the exact-property film names the same address.
Remarkability99/100
Data readiness92/100
Ownership intensityHigh
Why this belongs in Aveno
Remarkable is
an evidence test.
Flagship intelligence99remarkability / 100
Admitted to Aveno: unmistakably premium modern architecture, a live listing, defensible identity, structured buyer intelligence and a working exact-property publisher film.
Luxury and finish20/20
Premium specification and lifestyle scale.
Privacy and setting19/20
Detached and materially private; legal boundaries remain to verify.
Visual quality20/20
Working exact-property publisher film.
Market distinction20/20
Price, rarity and accommodation support admission.
Data-readiness audit · 92/100
Exact identity20/20
Westerly, Harvest Hill, Bourne End; official UPRN/title bridge remains buyer-side.
Market status20/20
Live primary or syndication listing checked 15 Aug 2026.
Price and area18/20
£577/sq ft from current guide and publisher area.
Buyer intelligence17/20
Costs, title, planning, energy, environmental and comparable questions are structured.
Rights and media20/20
Exact-property YouTube player with fallback.
- A 9,530 sq ft modern hillside house with panoramic views, a heated outdoor pool, cinema, gym, roof terrace, triple garage and a near-total connection to the landscape.
- 9,530 sq ft at £5.5m clears Aveno's luxury threshold.
- The exact-property film shows the real architecture and interiors without Aveno reproducing agent media.
- Live listing and current guide
- Exact-property publisher-controlled film
- Price-density and component cost model
- Transaction and comparable caveats kept explicit
- Official title number, UPRN and named design/construction team
- Complete 2017 completion/warranty and post-2020 upgrade chronology
- Actual pool, heating, security, garden and building operating history
Aveno Decision Engine · live model
What does the evidence
change?
Current buyer actionVIEW — VERIFY THE DECISION PACK
Westerly is a clear Pavello-level candidate: costly, unmistakably modern, visually exceptional and properly equipped for prime-family living. The evidence case is unusually strong because the live Savills description names the house and the exact-property film names the same address.
Identity confidence99%
Westerly, Harvest Hill, Bourne End
The named property/address, postcode, price, area, accommodation and exact-property film align across the captured market sources; official title and UPRN remain unconnected.
UPRNStill protected
01
Premium test
Is the asking premium supported?
Guide midpoint£5,500,000£6,212 / m²
versusLocal evidence benchmarkWithheld0 size-known local sales
Subject vs unadjusted evidence—
ReferenceDateAreaSold£/m²
Westerly, Harvest Hillsame named propertyJul 2020—£4,765,000—Harwin, Harvest Hillsame roadJun 2021—£4,550,000—Mulberry House, Harvest Hillsame roadMar 2021—£3,300,000—Resulting referenceWithheldNot a valuation. It exposes how much premium the evidence must justify.
The references are not a surveyor-selected valuation set. Recency, condition, land, architecture and improvements are not fully adjusted. Aveno shows the gap instead of hiding it behind false precision.
02
True ownership load
The cost after the keys.
Five-year cost above purchase price£1,075,250–£1,700,750SDLT + disclosed transaction extras + acquisition checks + modelled running and replacement allowances. Mortgage interest and major defects excluded.
Council taxCurrent listing band; exact authority charge and any annexe assessment to verify.£3,500–£6,000attributed
Energy, water and private systemsScale, plant, pool/estate systems and attributed energy setup; bills missing.£19,000–£53,750modelled
Insurance and securityHigh-value rebuild, gates, glazing, outbuildings and setting.£11,400–£32,250modelled
Building, plant and interior reserveComponent-based reserve for envelope, glazing, smart controls, kitchens, bathrooms and mechanical plant.£38,000–£75,250modelled
Grounds, access and lifestyle amenitiesLandscaping, woodland/land, pool/equestrian/garaging where applicable and access upkeep.£26,600–£53,750modelled
03
Claim audit
Marketing claim → buyer consequence.
Evidence readiness92/100
Tap the evidence cards as if the seller supplied them. Aveno recalculates the decision—not the beauty.
PROCEED TO VALUATION04
Property memory
The home’s price story.
30 Jul 2020£4,765,000Recorded sale · Freehold attributed
15% nominal uplift2.4% annualisedCurrent guide midpoint£5,500,000Asking evidence, not a sale
This history does not prove fair value. It tells the buyer exactly how much of the current price must be explained by market growth, improvements, specification and scarcity.
Official evidence map
What is matched.
What is withheld.
Land Registry can establish sale history; EPC can reveal rated floor area and energy assumptions; Planning Data can surface constraints by UPRN or coordinate. A link alone is never counted as intelligence.
connected
Live primary £5
Live primary £5.5m listing, exact property name, 9,530 sq ft, six bedrooms/bathrooms, specification, 2017 date, grounds, tenure, EPC and tax.
Source ↗connectedLive syndication confirms detached status, guide, 0
Live syndication confirms detached status, guide, 0.55 acres, tenure, Band H, current description and direct exact-property video hand-off.
Source ↗connectedWorking publisher-controlled exact-property film titled Westerly, Harvest Hill, Bourne End; permitted remote player only
Working publisher-controlled exact-property film titled Westerly, Harvest Hill, Bourne End; permitted remote player only.
Source ↗connectedSame-name £4
Same-name £4.765m July 2020 transfer plus same-road Harwin and Mulberry House anchors; official title reconciliation remains required.
Source ↗not matchedPlanning and Building Control route for the 2017 build, pool, terraces, office and subsequent upgrades
Planning and Building Control route for the 2017 build, pool, terraces, office and subsequent upgrades.
Source ↗not matchedProperty-level river, surface-water, groundwater, slope-runoff and drainage evidence required
Property-level river, surface-water, groundwater, slope-runoff and drainage evidence required.
Source ↗Published / verified
- Savills and the live portal listing show Westerly at £5.5m, 9,530 sq ft, six bedrooms, six bathrooms, freehold, Band H, EPC C and approximately 0.55 acres.
- The exact-property Bovingdons film is linked from the live OnTheMarket listing and names Westerly, Harvest Hill, Bourne End.
- The house was built in 2017 and is attributed as recently upgraded, with Gaggenau and Miele kitchen equipment, underfloor heating, CCTV, games/gym and cinema rooms, heated outdoor pool, garden office and triple garage.
- A same-name road transaction records Westerly at £4.765m on 30 July 2020; the current guide is £735k / 15.4% above that nominal anchor before works and market adjustment.
Investigate next
- Join the marketed identity to the official title, UPRN, title plan and the complete 2017 planning, Building Control, warranty and later-upgrade file.
- Reconcile the 2020 transfer with the current 9,530 sq ft, 0.55-acre asset through a works ledger and RICS component schedule separating garage, garden office, terraces and leisure space.
- Commission structural, retaining/slope, pool, roof-terrace, glazing, waterproofing, drainage, gas/plant, security and landscape surveys; obtain three years of operating records.
Still unknown
- Official title number, UPRN and named design/construction team
- Complete 2017 completion/warranty and post-2020 upgrade chronology
- Actual pool, heating, security, garden and building operating history
Primary publisher · visual-rights recordSavills MarlowOpen original source ↗Open rights-basis evidence ↗
All property film and photography remain publisher-controlled. Only the live film player and original Aveno evidence graphics are permitted; social stills require separate written permission. The exact-property film remains inside the publisher-controlled YouTube player exposed by the live listing. Aveno copies, downloads, screenshots, rehosts and hotlinks none of the agent media. The dossier retains an Aveno evidence panel and direct publisher/source links if the remote player is unavailable; no broken-image panel is rendered. Third-party material remains the property of its publisher. The publisher does not endorse Aveno’s independent assessment.
Durable archive record
Versioned evidence.
Every claim traceable.
Record 1.0-private · admission policy 2026-08-luxury. Facts, attributed claims, estimates and gaps remain separate.