Letchworth House, 18 The Willows, Amersham, HP6 5NT

UPRN:100080504261Detached House5 bedsBuilt 1967-1975

FreeholdCouncil Tax: Band GEPC: C (74)

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

Letchworth House, 18 The Willows, Amersham, HP6 5NT

HP Score

/ 100

Mixed

Verdict

6 days ago

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

Evidence

17 of 21 sources

Sale Estimate

£1,942,000

£1.84M - £2.04MHigh

Estimate

£1.94M

Range

£1.84M – £2.04M

Rent Estimate (pcm)

£5,350

£5k - £6k

Monthly

£5,350

Yield

3.22%

Verdict

Derived from HomePortfolio scores

Letchworth House earns an INVESTIGATE rating with HP Score 73/100. Investment score 61/100 reflects moderate fundamentals. Crime intensity is very low. Walkability is limited (32/100). 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 NationsMarket 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 covenantsHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

73/ 100

Mixed

Investment Score

61/ 100

Moderate

Crime Score

6/ 100

Low

Walkability

32/ 100

Mixed

Transit & Bike

Transit 10Bike 21

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 edge0/15
claims [AVM -2.7% (HIGH), sold-comps -59.9%, £/sqft -59.8%] → measured edge +0.00pp of the ask; on later-registered sales an AVM discount carried no edge and a sold-evidence gap at most +0.5pp
Market estimate used (HIGH confidence) · snapshot 12 Oct 2026
- valuation_snapshotsestimate for 100080504261· as of 12 Oct 2026
- property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 24.3%· as of 6 Nov 2026
Rental economics0/40
gross yield 3.2%; range width penalty ×0.64
- valuation_snapshotsrent estimate 5350/mo (range 4600-6100)· as of 12 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -4,614/mo, -86% 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), 115 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 & liquidity14.6/15
119 sales/12mo in area; valuation range width 10%
- 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

£1,496,000£1,995,000

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£1,995,000

At the asking price

Monthly rent£5,350/mo

Evidenced range £4,600-£6,100

Interest rate5.4%

Loan to value75%

Cash required: £752,950
Net cash flow: -£3,029/mo
Cash on cash: -4.8%
Score at this price: 15

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 0.79 - 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 100080504261Valuation edge · as of 12 Oct 2026
property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 24.3%Valuation edge · as of 6 Nov 2026
valuation_snapshotsrent estimate 5350/mo (range 4600-6100)Rental economics · as of 12 Oct 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

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 5350/mo (range 4600-6100)
Seller motivation could not be scored
context, not scored: 0 price cut(s), 115 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£1,942,000

Rent Estimate (pcm)£5,350

Gross Yield3.22%

1y Growth-

3y Growth+2.8%

5y Growth+4.1%

10y Growth+4.2%

Last Sold Price£760,000 (2011-04-12)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceModerate
RadonLow
MiningLow
LandslideLow
Air QualityLow
NoiseLow

View Full Risk Report

Planning Activity

Recent Apps

0HP6 5NT

Approval Rate

-12mo

Development

low

PL/26/08757/SA
Certificate of Lawfulness for proposed erection of a new outbuilding and associated paved terrace to the rear of the existing dwelling
Pending
PL/26/08298/FA
Householder application for the demolition of existing glazed conservatory and shed, and erection of two single-storey rear extensions.
Pending
PL/26/08319/KA
T34 Oak Crown reduce by up to 8m. T82 Ash Fell to ground level. T84 Sycamore Fell to ground level.
Pending

View Planning Timeline

Ownership

Corporate Ownership55.6%
Overseas OwnershipNo
Lease Term Remaining-
CovenantsRestrictive
Lease TypeFreehold
Last Ownership Change2011-04-12
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

15 Mbps

Mobile 4G/5G Coverage

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£35,937

Population Density520 /km²

Owner Occupied94%

Age Distribution

0-15 18%16-64 57%65+ 25%

View Area Profile

Schools Nearby

The Beacon School
0.2 mi
Inspected by ISI
Our Lady's Catholic Primary School
0.3 mi
Inspected as Our Lady's Catholic Primary School (URN 110479) on 1 May 2018
Heatherton School
0.5 mi
Inspected by ISI
Dr Challoner's Grammar School
0.9 mi
Outstanding

2 of 8 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

View All Schools

Comparables

View All

11 The Willows
-
£1.30M
-
5 The Willows
-
£1.70M
-
12 The Willows
-
£1.57M
-
24 The Willows
-
£1.25M
-

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