AVENOHOME@avenohome

Aveno permanent dossier · published 30 Aug 2026

Dubarry House

Grimms Hill, Great Missenden, Buckinghamshire

Independent reading

An Arts & Crafts-inspired 8,130 sq ft private-road house with exacting contemporary interiors, spiral wine cellar, pool, putting green, gym and triple garaging in the Chiltern Hills.

Dubarry House clears the Pavello benchmark through bespoke architecture, unusually resolved luxury interiors and a complete private lifestyle programme in a secluded 0.89-acre setting. The modelled £492/sq ft headline uses Savills' 8,130 sq ft; the exact-address EPC record retains 686 sq m / about 7,384 sq ft, which would imply about £542/sq ft. Neither density should drive value until a signed RICS component schedule reconciles the 746 sq ft difference and identifies the garage, gym, terraces and leisure components.

Remarkability99/100
Data readiness95/100
Ownership intensityHigh

Why this belongs in Aveno

Remarkable is
an evidence test.

Flagship intelligence99remarkability / 100

Admitted to Aveno on architecture, live market evidence, defensible identity and structured buyer intelligence; no film is presented until an exact-property source is verified.

Architecture20/20

Arts & Crafts-inspired bespoke house; named architect and professional appointment to verify

Luxury and finish20/20

Premium specification and lifestyle scale.

Privacy and setting19/20

Detached and materially private; legal boundaries remain to verify.

Visual quality12/20

No film displayed pending an exact-property verification.

Market distinction20/20

Price, rarity and accommodation support admission.

Data-readiness audit · 95/100

Exact identity20/20

Dubarry House, Grimms Hill, Great Missenden; official UPRN/title bridge remains buyer-side.

Market status20/20

Live primary or syndication listing checked 30 Aug 2026.

Price and area18/20

£492/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

No unverified third-party visual is displayed; Aveno evidence graphics and the live source remain available.

Independent reasons
  • An Arts & Crafts-inspired 8,130 sq ft private-road house with exacting contemporary interiors, spiral wine cellar, pool, putting green, gym and triple garaging in the Chiltern Hills.
  • 8,130 sq ft at £4.0m clears Aveno's luxury threshold.
  • The dossier prioritises verified evidence over an unconfirmed visual.
Data already strong
  • Live listing and current guide
  • Price-density and component cost model
  • Transaction and comparable caveats kept explicit
Data still missing
  • Official title number, registered 0.89-acre extent and complete private-road, covenant, boundary, access, drainage, service and maintenance position
  • Signed component-area schedule reconciling 755.3 sq m / 8,130 sq ft with the exact-address EPC's 686 sq m / about 7,384 sq ft
  • Named architect and complete design, planning, Building Control, completion, structural, warranty and professional-appointment archive
  • Measured operating costs, pool and security service histories, private-road liabilities, insurability terms and property-level environmental reports

Aveno Decision Engine · live model

What does the evidence
change?

Current buyer actionVIEW — VERIFY THE DECISION PACK

Dubarry House clears the Pavello benchmark through bespoke architecture, unusually resolved luxury interiors and a complete private lifestyle programme in a secluded 0.89-acre setting. The modelled £492/sq ft headline uses Savills' 8,130 sq ft; the exact-address EPC record retains 686 sq m / about 7,384 sq ft, which would imply about £542/sq ft. Neither density should drive value until a signed RICS component schedule reconciles the 746 sq ft difference and identifies the garage, gym, terraces and leisure components.

Identity confidence99%

Dubarry House, Grimms Hill, Great Missenden
The live Savills instruction and current OnTheMarket distribution align on Dubarry House, Grimms Hill, Great Missenden, HP16 9BG: a detached freehold house offered in excess of £4m with six bedrooms, six bathrooms, four receptions, about 8,130 sq ft and 0.89 acres. The exact-address official-data index joins UPRN 10013777055 and EPC C, while Companies House independently repeats the complete named address. The official title remains buyer-side, but the named-house, postcode, accommodation, UPRN, energy and specification alignment produces a decisive exact-property match.

UPRN10013777055
01
Premium test

Is the asking premium supported?

Guide midpoint£4,000,000£5,296 / m²
versus
Local evidence benchmarkWithheld0 size-known local references
Subject vs unadjusted evidence—
ReferenceDateAreaPrice / ask£/m²
St Martins, Grimms Hillsame private road and postcodeMar 2025—£2,628,864—Catalpa, Grimms Hillsame private road and postcodeJan 2022—£3,250,000—
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£870,250–£1,495,750SDLT + 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.£18,000–£52,500modelled
Insurance and securityHigh-value rebuild, gates, glazing, outbuildings and setting.£10,800–£31,500modelled
Building, plant and interior reserveComponent-based reserve for envelope, glazing, smart controls, kitchens, bathrooms and mechanical plant.£36,000–£73,500modelled
Grounds, access and lifestyle amenitiesLandscaping, woodland/land, pool/equestrian/garaging where applicable and access upkeep.£25,200–£52,500modelled
Modelled SDLT on recorded consideration£393,750Annual ownership range£93,500–£216,000
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 VALUATION
04
Property memory

The home’s price story.

Direct transaction memory is not yet matched.

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 offers-in-excess-of-£4m instruction with Dubarry House identity, detached/freehold tenure, six bedrooms, six bathrooms, four receptions, 8,130 sq ft, 0

Live original offers-in-excess-of-£4m instruction with Dubarry House identity, detached/freehold tenure, six bedrooms, six bathrooms, four receptions, 8,130 sq ft, 0.89 acres, EPC C and current enquiry route.

Source ↗connected

Current independent distribution confirms the named-house identity, price, accommodation, Arts & Crafts-inspired architecture, private Grimms Hill setting, pool, putting green, gym and current sale

Current independent distribution confirms the named-house identity, price, accommodation, Arts & Crafts-inspired architecture, private Grimms Hill setting, pool, putting green, gym and current sale.

Source ↗connected

Exact-address official-data index joins UPRN 10013777055, Dubarry House, Grimms Hill, HP16 9BG, detached-house form, EPC C and 686 sq m; official title and source certificates remain to retrieve

Exact-address official-data index joins UPRN 10013777055, Dubarry House, Grimms Hill, HP16 9BG, detached-house form, EPC C and 686 sq m; official title and source certificates remain to retrieve.

Source ↗connected

Official Companies House record independently repeats Dubarry House, Grimms Hill, Great Missenden, Buckinghamshire, HP16 9BG as a full correspondence address

Official Companies House record independently repeats Dubarry House, Grimms Hill, Great Missenden, Buckinghamshire, HP16 9BG as a full correspondence address.

Source ↗connected

Royal Mail, Ordnance Survey, ONS and Land Registry-attributed postcode data confirms Grimms Hill, the postcode's predominantly detached form, same-road transactions and the archive's deliberately approximate centroid

Royal Mail, Ordnance Survey, ONS and Land Registry-attributed postcode data confirms Grimms Hill, the postcode's predominantly detached form, same-road transactions and the archive's deliberately approximate centroid.

Source ↗partial

Exact-address derived record independently attributes a freehold modern house, 7,384 sq ft, 3,596 sq m plot and EPC C assessed 9 October 2025

Exact-address derived record independently attributes a freehold modern house, 7,384 sq ft, 3,596 sq m plot and EPC C assessed 9 October 2025.

Source ↗not matched

Official Buckinghamshire planning-search route; the complete original-house, pool, roof-terrace, wine-cellar and garage/gym approval, Building Control, completion and condition-discharge archive remains to retrieve

Official Buckinghamshire planning-search route; the complete original-house, pool, roof-terrace, wine-cellar and garage/gym approval, Building Control, completion and condition-discharge archive remains to retrieve.

Source ↗not matched

Property-level river, surface-water, groundwater, drainage, tree, slope and climate-risk evidence remains required for the Chiltern Hills setting

Property-level river, surface-water, groundwater, drainage, tree, slope and climate-risk evidence remains required for the Chiltern Hills setting.

Source ↗

Published / verified

  1. Savills currently offers Dubarry House in excess of £4m as a detached freehold house with six bedrooms, six bathrooms, four receptions, 8,130 sq ft and approximately 0.89 acres.
  2. The Arts & Crafts-inspired three-storey house combines traditional English external language with contemporary interiors, extensive bespoke joinery and a Gaggenau-equipped kitchen.
  3. A three-metre spiral wine cellar, four first-floor en-suite bedrooms, two further upper-floor bedrooms and a roof terrace establish the interior and entertaining programme.
  4. Secure gates, a sweeping drive, triple garage with gym above, landscaped gardens, outdoor swimming pool, private putting green, covered seating and mature hedging create a materially private lifestyle setting.
  5. UPRN 10013777055, Companies House and postcode records independently identify Dubarry House at Grimms Hill, HP16 9BG; the current exact-address energy record attributes EPC C and 686 sq m.
  6. The postcode centroid is deliberately approximate for privacy; it places the archive marker on Grimms Hill rather than disclosing a precise building coordinate.

Investigate next

  1. Obtain the official title register and plan joined to UPRN 10013777055, confirming the 0.89-acre extent, private-road rights and liabilities, boundaries, covenants, pool, garage, drainage, services and every access or maintenance obligation.
  2. Commission a signed RICS component measurement reconciling Savills' 8,130 sq ft / 755.3 sq m with the exact-address EPC's 686 sq m / about 7,384 sq ft, separating primary accommodation, garage, gym, plant and any non-habitable or external areas.
  3. Retrieve the complete original design, planning, Building Control, completion, structural, professional-appointment and warranty archive, including every later alteration, pool, roof terrace, wine cellar and garage/gym approval.
  4. Obtain three years of energy, water, pool, garden, security, private-road and insurance records; commission specialist structure, roof, waterproofing, M&E, pool, tree, drainage and property-level environmental surveys.

Still unknown

  1. Official title number, registered 0.89-acre extent and complete private-road, covenant, boundary, access, drainage, service and maintenance position
  2. Signed component-area schedule reconciling 755.3 sq m / 8,130 sq ft with the exact-address EPC's 686 sq m / about 7,384 sq ft
  3. Named architect and complete design, planning, Building Control, completion, structural, warranty and professional-appointment archive
  4. Measured operating costs, pool and security service histories, private-road liabilities, insurability terms and property-level environmental reports
Primary publisher · visual-rights recordSavillsOpen original source ↗Open rights-basis evidence ↗

No third-party property film or photography is displayed. Use the prominent live market source for real-property media; Aveno shows only its original evidence graphics. No exact-property film is displayed. The dossier uses only Aveno's original evidence presentation and links to the live market source; no estate-agent media is copied, downloaded, screenshot, rehosted or hotlinked. Aveno original evidence panel; no third-party property media is reproduced or embedded. 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.

Claim ledger6material claims with state, date and confidence
Source snapshots8typed observations with conflicts preserved
Change log1versioned amendments retained
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