Flat 15, Butler House, 19–23 Market Street, Maidenhead, SL6 8AA

UPRN:10012335337Flat/Maisonette6 bedsBuilt -

LeaseholdCouncil Tax: Band CEPC: B (85)

Data freshness:Listing· freshPlanning· 4mo agoEPC· 5mo agoRisk· 2y agoAmenities· 1mo agoArea· Census 2021

Flat 15, Butler House, 19–23 Market Street, Maidenhead, SL6 8AA

HP Score

/ 100

Mixed

Verdict

yesterday

Verdict: INVESTIGATE, on a scale of Buy, Investigate, Avoid.
Mixed signals - investigate

Evidence

20 of 21 sources

Sale Estimate

£287,000

£229k - £344kLow

Estimate

£287k

Range

£229k – £344k

Rent Estimate (pcm)

£1,250

£1k - £1k

Monthly

£1,250

Yield

1.20%

Verdict

Derived from HomePortfolio scores

Flat 15 earns an INVESTIGATE rating with HP Score 65/100. Investment score 74/100 reflects strong fundamentals. Crime intensity is elevated. Walkability is excellent (96/100). Flood risk is not assessed: check the Environment Agency long-term flood map before offering. Tenure is leasehold. 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

65/ 100

Mixed

Investment Score

74/ 100

High

100

Crime Score

100/ 100

Elevated

Walkability

96/ 100

Excellent

Transit & Bike

Transit 23Bike 64

Walk Score, out of 100

Opportunity

Not scored as an opportunity

We will not put a number on this one.

headline score requires valuation_edge (estimate confidence LOW below scoring floor)

What we could establish

Rental economics0/40
gross yield 1.2%; range width penalty ×0.88
- valuation_snapshotsrent estimate 1250/mo (range 1150-1350)· as of 10 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -4,485/mo, -359% of rent (6.75% on a 75% loan; no service charge or ground rent disclosed); fails the stress - earns nothing; leasehold with no service charge disclosed - the stress assumes GBP 0
- underwriting_assumptionscosts not disclosed by the advert· as of 23 Oct 2026· verify before relying on this
Risk & liquidity9.2/15
761 sales/12mo in area; valuation range width 40%
- property_intelligencetransactions_12mo

Withholding a score is deliberate. A number built on missing or stale inputs would look more certain than the evidence allows.

Economics

What happens to your money

Your assumptions

Purchase price£1,250,000

At the asking price

Monthly rent£1,250/mo

Evidenced range £1,150-£1,350

Interest rate5.4%

Loan to value75%

Cash required: £445,050
Net cash flow: -£3,353/mo
Cash on cash: -9.0%
Score at this price: -

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 0.30 - 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_snapshotsrent estimate 1250/mo (range 1150-1350)Rental economics · as of 10 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 23 Oct 2026 · verify before relying on this
portal_listingsprice_changes + first_published_dateSeller motivation · as of 23 Oct 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
Valuation edge could not be scored
estimate confidence LOW below scoring floor
Rental economics needs verification before you rely on it
rent estimate 1250/mo (range 1150-1350)

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. Ask the agent why the price was reduced and whether a previous sale fell through.
1 price cut(s) recorded on the listing history.
3. Fill the valuation edge gap before relying on the score.
estimate confidence LOW below scoring floor
4. 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£287,000

Rent Estimate (pcm)£1,250

Gross Yield1.20%

1y Growth+48.1%

3y Growth+3.9%

5y Growth+1.3%

10y Growth+1.9%

Last Sold Price£300,000 (2017-04-28)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonModerate
MiningLow
LandslideLow
Air QualityLow
NoiseLow

View Full Risk Report

Planning Activity

Recent Apps

0SL6 8AA

Approval Rate

-12mo

Development

low

26/02468/DEM
Prior notification for the demolition of the existing clubhouse and associated buildings.
Pending
26/02459/CONDIT
Details required by Condition 2 (Construction Environmental Management Plan - Biodiversity) of prior notification (26/02046/DEM) for prior notification for the demolition of all buildings and structures.
Conditions
26/02443/TPO
(T1) Pine - Section fell to just above ground level. (002/1986/TPO).
Pending

View Planning Timeline