Architecture20/20
Named architect unverified; major remodelling and extensions approved under Arun references EP/120/15/HH and EP/103/16/HH
Aveno permanent dossier · published 8 Sep 2026
Hascombe
Willowhayne Estate, East Preston, West Sussex
Independent reading
A 10,347 sq ft coastal house built around a triple-height hall, uninterrupted sea-facing living and a complete indoor pool, gym, sauna and steam-room wing.
Hascombe clears Aveno's gate on architectural presence, scale and the rare combination of private-estate seclusion with direct greensward-and-beach access. At about £435 per marketed square foot, the current £4.5m ask can look deceptively simple. It is not: the exact-property data retains only 453 m² / 4,876 sq ft against the 961 m² / 10,347 sq ft marketed total, and the house sold for £4m in July 2018. Resolve the component measurement, remodelling completion record, coastal title and operating load before treating either the density or the £500,000 nominal uplift as valuation evidence.
Remarkability100/100
Data readiness95/100
Ownership intensityHigh
Why this belongs in Aveno
Remarkable is
an evidence test.
Flagship intelligence100remarkability / 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 · 95/100
Exact identity20/20
Hascombe, 33 Tamarisk Way, East Preston, Littlehampton, West Sussex; official UPRN/title bridge remains buyer-side.
Market status20/20
Live primary or syndication listing checked 8 Sep 2026.
Price and area18/20
£435/sq ft from current guide and the 10,347 sq ft figure retained by the detailed Knight Frank/OnTheMarket record and current exact-address data; TAUK describes the present house as over 10,000 sq ft, while the Land Registry-derived record retains only 453 m² / 4,876 sq ft and must be reconciled.
Buyer intelligence17/20
Costs, title, planning, energy, environmental and comparable questions are structured.
Rights and media20/20
Exact-property YouTube player with fallback.
- A 10,347 sq ft coastal house built around a triple-height hall, uninterrupted sea-facing living and a complete indoor pool, gym, sauna and steam-room wing.
- 10,347 sq ft at £4.5m 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 the complete beach, greensward, private-road, covenant, boundary, drainage, sea-defence and estate-charge position
- Signed component-area schedule resolving the 10,347 sq ft marketing total against the 453 m² exact-address record
- Complete planning, Building Control, condition-discharge, structural, professional-team, completion and warranty archive for the remodelling and extensions
- Current EPC rating, measured pool-and-house operating costs, plant histories, insurability and property-level coastal flood, erosion, groundwater, surface-water and ground evidence
Aveno Decision Engine · live model
What does the evidence
change?
Current buyer actionVIEW — VERIFY THE DECISION PACK
Hascombe clears Aveno's gate on architectural presence, scale and the rare combination of private-estate seclusion with direct greensward-and-beach access. At about £435 per marketed square foot, the current £4.5m ask can look deceptively simple. It is not: the exact-property data retains only 453 m² / 4,876 sq ft against the 961 m² / 10,347 sq ft marketed total, and the house sold for £4m in July 2018. Resolve the component measurement, remodelling completion record, coastal title and operating load before treating either the density or the £500,000 nominal uplift as valuation evidence.
Identity confidence99%
Hascombe, 33 Tamarisk Way, East Preston, Littlehampton, West Sussex
TAUK's live instruction names Hascombe and aligns with the detailed Knight Frank/OnTheMarket record and Brennan & Chatterton film on six bedrooms, six bathrooms, the Willowhayne Estate, over 10,000 sq ft, coastal access, triple-height hall and leisure wing. Arun's official planning record and Land Registry-derived transactions independently join Hascombe to 33 Tamarisk Way, East Preston, BN16 2TE.
UPRNStill protected
01
Premium test
Is the asking premium supported?
Guide midpoint£4,500,000£4,681 / m²
versusLocal evidence benchmark£7,987 / m²2 size-known local references
Subject vs unadjusted evidence-41.4%
ReferenceDateAreaPrice / ask£/m²
23 Tamarisk Waysame road and postcodeSept 2024395 m²£2,914,500£7,378Paddock Place, 35 Tamarisk Waysame road and postcodeJul 2022349 m²£3,000,000£8,59629 Tamarisk Waysame road and postcodeJun 2019—£2,450,000—Resulting reference£8,829,848Not 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£1,101,250–£1,963,750SDLT + 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.£24,000–£70,000modelled
Insurance and securityHigh-value rebuild, gates, glazing, outbuildings and setting.£14,400–£42,000modelled
Building, plant and interior reserveComponent-based reserve for envelope, glazing, smart controls, kitchens, bathrooms and mechanical plant.£48,000–£98,000modelled
Grounds, access and lifestyle amenitiesLandscaping, woodland/land, pool/equestrian/garaging where applicable and access upkeep.£33,600–£70,000modelled
03
Claim audit
Marketing claim → buyer consequence.
Evidence readiness95/100
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.
18 Jul 2018£4,000,000Recorded sale · Freehold — Land Registry-derived record
13% nominal uplift1.5% annualisedCurrent guide midpoint£4,500,000Asking 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 original TAUK instruction confirms offers over £4
Live original TAUK instruction confirms offers over £4.5m, For Sale status, Hascombe, six bedrooms, six bathrooms, over 10,000 sq ft, the private Willowhayne setting, architectural programme, leisure wing and current enquiry route.
Source ↗connectedCurrent distribution independently retains the £4
Current distribution independently retains the £4.5m position, six-bedroom and six-bathroom programme, Hascombe identity, over-10,000 sq ft scale and Willowhayne Estate setting.
Source ↗connectedWorking exact-property tour published by Brennan & Chatterton Estates for Hascombe, Tamarisk Way, East Preston; permitted remote YouTube player only
Working exact-property tour published by Brennan & Chatterton Estates for Hascombe, Tamarisk Way, East Preston; permitted remote YouTube player only. Its prior-campaign pricing is not substituted for today's TAUK ask.
Source ↗partialClosed Knight Frank distribution supplies the detailed 10,347 sq ft, freehold, Band H, six-bedroom, six-bathroom and feature record
Closed Knight Frank distribution supplies the detailed 10,347 sq ft, freehold, Band H, six-bedroom, six-bathroom and feature record. It is not used to prove current availability or price.
Source ↗connectedOfficial Arun record joins Hascombe, 33 Tamarisk Way, BN16 2TE to conditionally approved remodelling and extensions under EP/103/16/HH, decided 5 September 2016
Official Arun record joins Hascombe, 33 Tamarisk Way, BN16 2TE to conditionally approved remodelling and extensions under EP/103/16/HH, decided 5 September 2016.
Source ↗connectedOfficial Arun condition-discharge record repeats the exact Hascombe address and records approval of landscaping details under the 2016 permission on 3 October 2018; the full completion join remains buyer-side
Official Arun condition-discharge record repeats the exact Hascombe address and records approval of landscaping details under the 2016 permission on 3 October 2018; the full completion join remains buyer-side.
Source ↗connectedHM Land Registry-derived results identify the exact 33 Tamarisk Way £4m July 2018 and £1
HM Land Registry-derived results identify the exact 33 Tamarisk Way £4m July 2018 and £1.55m January 2015 transactions and supply explicitly unmatched same-road chronology.
Source ↗connectedLand Registry-derived exact-address data independently repeats the transactions, detached/freehold identity, six bedrooms, six bathrooms and 453 m² historic area
Land Registry-derived exact-address data independently repeats the transactions, detached/freehold identity, six bedrooms, six bathrooms and 453 m² historic area.
Source ↗connectedCurrent England single-property SDLT bands produce £453,750 at £4
Current England single-property SDLT bands produce £453,750 at £4.5m. Buyer circumstances, higher rates, non-resident treatment and reliefs require professional tax advice.
Source ↗not matchedOfficial property-level sea, river, surface-water, groundwater, reservoir and climate evidence remains required, alongside coastal-erosion, sea-defence, drainage, salt-exposure and insurance enquiries
Official property-level sea, river, surface-water, groundwater, reservoir and climate evidence remains required, alongside coastal-erosion, sea-defence, drainage, salt-exposure and insurance enquiries.
Source ↗Published / verified
- TAUK currently offers Hascombe at offers over £4.5m as a six-bedroom, six-bathroom modern coastal house extending to over 10,000 sq ft on the private Willowhayne Estate.
- The current instruction attributes a triple-height vaulted hall, floating staircase, Gaggenau kitchen, sea-facing principal apartment, two further reception rooms and extensive smart-home controls.
- The leisure wing is attributed with a fully tiled indoor pool, gym, sauna, steam room and changing facilities; the south-facing garden opens to the private greensward and beach.
- The detailed former Knight Frank distribution records 10,347 sq ft, freehold tenure and Council Tax Band H; those structured fields remain subject to current documentary confirmation.
- Arun District Council identifies Hascombe at 33 Tamarisk Way and approved revised remodelling and extensions under EP/103/16/HH in September 2016, with later condition discharges including landscaping.
- Land Registry-derived records show the exact address sold for £4m in July 2018 after a £1.55m January 2015 transfer; the current £4.5m position is an asking price, not a sale.
Investigate next
- Obtain the official freehold register, title plan and UPRN, then reconcile the beach and greensward access, private-estate roads and charges, boundaries, covenants, rights, drainage, sea-defence and maintenance obligations.
- Retrieve the full EP/120/15/HH and EP/103/16/HH files, every condition discharge and later alteration record, and join them to Building Control completion, structural records, professional appointments, specifications and warranties.
- Commission a signed RICS component measurement reconciling 10,347 sq ft / 961 m² with the 453 m² exact-address record and separating principal accommodation, leisure wing, garage, ancillary accommodation, plant and non-habitable areas.
- Obtain three years of energy, water, pool-and-spa plant, smart-system, grounds, private-estate, security and insurance costs, plus specialist surveys of the coastal envelope, glazing, roofs, pool plant, drainage and salt exposure.
Still unknown
- Official title number, UPRN and the complete beach, greensward, private-road, covenant, boundary, drainage, sea-defence and estate-charge position
- Signed component-area schedule resolving the 10,347 sq ft marketing total against the 453 m² exact-address record
- Complete planning, Building Control, condition-discharge, structural, professional-team, completion and warranty archive for the remodelling and extensions
- Current EPC rating, measured pool-and-house operating costs, plant histories, insurability and property-level coastal flood, erosion, groundwater, surface-water and ground 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. Brennan & Chatterton Estates publishes the working exact-property Hascombe tour on its public YouTube channel. Its title names Hascombe, Tamarisk Way and East Preston, while the current TAUK instruction aligns on the name, address district, six-bedroom programme, coastal setting and principal architectural features. The film reflects a prior £5.25m campaign; Aveno uses the current £4.5m TAUK asking position and only YouTube's privacy-enhanced publisher-controlled player. No film still, estate-agent photograph, screenshot, download, rehost or photography hotlink is used. 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.
Record integritySee something inaccurate or hold better evidence?
Request a correction →Aveno records corrections and preserves the observation date. Owners, agents, architects and rights-holders are invited to provide documentary evidence.
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.
Aveno Time MachineFollow this home’s market history.
Open market timeline →Price, status, withdrawal, relisting and sale signals are preserved as dated observations. Missing history is never reconstructed as fact.