Mardon, Lower Road, Cookham, Maidenhead, SL6 9EH

UPRN:100081048684Detached House3 bedsBuilt 1950-1966

FreeholdCouncil Tax: Band FEPC: C (71)

Data freshness:Listing· freshPlanning· 4mo agoOwnership· freshRisk· 5mo agoConnectivity· 1mo agoSchools· 1mo agoAmenities· 2mo agoArea· Census 2021Council Tax· 1mo ago

Mardon, Lower Road, Cookham, Maidenhead, SL6 9EH

HP Score

/ 100

Strong

Verdict

today

Verdict: INVESTIGATE, on a scale of Buy, Investigate, Avoid.
Strong fundamentals; flood risk not assessed

Evidence

20 of 21 sources

Sale Estimate

£976,000

£878k - £1.07MMedium

Estimate

£976k

Range

£878k – £1.07M

Rent Estimate (pcm)

£3,400

£3k - £4k

Monthly

£3,400

Yield

3.71%

Verdict

Derived from HomePortfolio scores

Mardon earns an INVESTIGATE rating with HP Score 78/100. Investment score 63/100 reflects moderate fundamentals. Crime intensity is very low. Walkability is limited (61/100). Flood risk is not assessed: check the Environment Agency long-term flood map before offering. Tenure is freehold. Every figure here comes from the live HomePortfolio API; anything it does not publish is left out.

Key SourcesEPC RegisterPortal listingsOfcom Connected NationsOfcom mobile coverageMarket estimates (third-party AVM)HM Land Registry sales matched to addressDefra strategic noise mapping, England Round 4 (Contains Defra data © Crown copyright and database right 2023-2024, Open Government Licence v3.0)Walk ScoreONS Census 2021Police.ukHM Land Registry company ownershipHM Land Registry covenantsHM Land Registry leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

78/ 100

Strong

Investment Score

63/ 100

Moderate

Crime Score

12/ 100

Low

Walkability

61/ 100

Moderate

Transit & Bike

Transit 12Bike 32

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence0 independent sourcesListing checked 3 Nov 2026

This rests largely on a single source. Treat the score as a prompt to investigate, not a conclusion.

Valuation edge-0.6/15
claims [AVM -12.7% (MEDIUM)] → measured edge -0.12pp of the ask; on later-registered sales an AVM discount carried no edge and a sold-evidence gap at most +0.5pp; asking more than 10% above the estimate (measured -0.33pp)
Market estimate used (MEDIUM confidence) · snapshot 9 Nov 2026
- valuation_snapshotsestimate for 100081048684· as of 9 Nov 2026
Rental economics0/40
gross yield 3.7%; range width penalty ×0.76
- valuation_snapshotsrent estimate 3400/mo (range 3050-3800)· as of 9 Nov 2026· verify before relying on this
Stress margin0/30
stressed cash flow -2,272/mo, -67% of rent (6.75% on a 75% loan; no service charge or ground rent disclosed); fails the stress - earns nothing
- underwriting_assumptionscosts not disclosed by the advert· as of 3 Nov 2026
Seller motivationNot scored
context, not scored: 0 price cut(s), 37 days on market; homes with a cut sold 0.2-0.3pp further below the cut ask, which is not an edge
- portal_listingsprice_changes + first_published_date· as of 3 Nov 2026
Risk & liquidity12.8/15
775 sales/12mo in area; valuation range width 20%
- property_intelligencetransactions_12mo

4 of 4 components scored. Ranks on gross yield, the stress margin, risk and disclosed facts. A pricing claim earns only its measured edge: today 0 for the market estimate and at most +0.5pp for sold evidence. The score itself is not yet checked against the outcomes of homes it scored.

Economics

What happens to your money

Price sensitivity

£825,000£1,265,000

The same scorer re-run at hypothetical asking prices, holding rent, comps and listing history constant. Not a prediction of what the seller would accept.

Your assumptions

Purchase price£1,100,000

At the asking price

Monthly rent£3,400/mo

Evidenced range £3,050-£3,800

Interest rate5.4%

Loan to value75%

Cash required: £385,050
Net cash flow: -£1,359/mo
Cash on cash: -4.2%
Score at this price: 12

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 0.92 - below the usual 1.25 test. These are your assumptions, not evidence: only the pre-filled rent and price come from the record.

Evidence

Where every number comes from

valuation_snapshotsestimate for 100081048684Valuation edge · as of 9 Nov 2026
valuation_snapshotsrent estimate 3400/mo (range 3050-3800)Rental economics · as of 9 Nov 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 3 Nov 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 3 Nov 2026
property_intelligencetransactions_12moRisk & liquidity

Sold comparables in depth

Risks

What could kill this deal

Score confidence is low
largely a single source - treat the number as a prompt, not a conclusion
Rental economics needs verification before you rely on it
rent estimate 3400/mo (range 3050-3800)
Seller motivation could not be scored
context, not scored: 0 price cut(s), 37 days on market; homes with a cut sold 0.2-0.3pp further below the cut ask, which is not an edge

Property risk deep-dive →

Plan

Before you offer

1. Get two written rental appraisals from local lettings agents.
The rent estimate rests on area-level evidence, not lettings on this street.
2. Commission a full structural survey, not a basic condition report.
The score prices market evidence, not the fabric of the building.

Every step above was generated from a specific gap or flag in the evidence - no generic advice, no invented tasks.

Valuation & Market

Sale Estimate£976,000

Rent Estimate (pcm)£3,400

Gross Yield3.71%

1y Growth-

3y Growth+4.0%

5y Growth+1.0%

10y Growth+1.9%

Last Sold Price£440,000 (2008-09-04)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningLow
LandslideLow
Air QualityLow
NoiseModerate

View Full Risk Report

Planning Activity

Recent Apps

0SL6 9EH

Approval Rate

-12mo

Development

low

26/02650/CONDIT
Details required by Condition 2 (Materials); Condition 3 (Protective Fencing) and Condition 6 (Biodiversity Enhancements) of planning permission 26/01149/FULL for proposed works to the kitchen wing including replacement roof structure, new roof covering and new roof lantern, replacement copings to parapets, replacement French doors to the east elevation, repair and repointing of the existing brickwork, increase in height to the west elevation wall to from new parapet, new French doors and steps to the courtyard, new windows and new rainwater goods.
Pending
26/02678/CONDIT
Details required by Condition 2 (Materials) and Condition 3 (Hand Tools) of listed building consent 26/01150/LBC for the consent for proposed works to the kitchen wing including replacement roof structure, new roof covering and new roof lantern, replacement copings to parapets, replacement French doors to the east elevation, repair and repointing of the existing brickwork, increase in height to the west elevation wall to from new parapet, new French doors and steps to the courtyard, new windows and new rainwater good, and internal alterations to include wall insulation, new partitions and a new floor slab with under floor heating.
Pending
26/02600/TPO
G161 - 9no. Cypress - fell (013/2025/TPO)
Rejected

View Planning Timeline

Ownership

Corporate Ownership54.3%
Overseas OwnershipNo
Lease Term Remaining-
CovenantsRestrictive
Lease TypeFreehold
Last Ownership Change2008-09-04
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

15 Mbps

Mobile 4G/5G Coverage

EEThreeO2Vodafone

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£37,653

Population Density453 /km²

Owner Occupied86%

Age Distribution

0-15 18%16-64 60%65+ 22%

View Area Profile

Schools Nearby

Cookham Rise Primary School
0.2 mi
Report card2026
Ofsted no longer awards a single overall grade.
Cookham Nursery School
0.4 mi
Outstanding
Holy Trinity CofE Primary School, Cookham
0.9 mi
GoodConcerns
Cookham Dean CofE Primary School
0.9 mi
Good

1 of 9 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

View All Schools

Comparables

View All

Cluster Cottage Lower Road
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£485k
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London House Lower Road
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£813k
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Vine Cottage Lower Road
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£250k
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Europower House Lower Road
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£355k
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Boundary data not available for this property

No registered title polygon, building footprint, or street match for this property yet.

Why: No HMLR INSPIRE / OSM footprint / OS Open USRN match for this UPRN

Source: HM Land Registry INSPIRE / OpenStreetMap / OS Open USRN