Annecy, 25 Chiltern Avenue, Amersham, HP6 5AE

UPRN:100080499463Semi-Detached HouseBeds -Built 1967-1975

Tenure: -Council Tax: Band EEPC: D (64)

Data freshness:Listing· freshPlanning· 4mo agoOwnership· freshEPC· 3mo agoRisk· 5mo agoCrime· freshConnectivity· 1mo agoSchools· 1mo agoAmenities· 2mo agoArea· Census 2021Council Tax· 4mo ago

Annecy, 25 Chiltern Avenue, Amersham, HP6 5AE

HP Score

/ 100

Strong

Verdict

2 days ago

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

Evidence

19 of 21 sources

Sale Estimate

£771,000

£733k - £810kHigh

Estimate

£771k

Range

£733k – £810k

Rent Estimate (pcm)

£2,950

£3k - £3k

Monthly

£2,950

Yield

4.88%

Verdict

Derived from HomePortfolio scores

Annecy earns an INVESTIGATE rating with HP Score 75/100. Investment score 64/100 reflects moderate fundamentals. Crime intensity is low. Walkability is limited (65/100). Flood risk is not assessed: check the Environment Agency long-term flood map before offering. 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)Defra 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

75/ 100

Strong

Investment Score

64/ 100

Moderate

Crime Score

28/ 100

Moderate

Walkability

65/ 100

Moderate

Transit & Bike

Transit 37Bike 42

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence0 independent sourcesListing checked 10 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 +6.0% (HIGH), sold-comps -5.1%, £/sqft -5.1%] → 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 100080499463· as of 12 Oct 2026
- property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 5.9%· as of 29 Oct 2026
Rental economics0/40
gross yield 4.9%; range width penalty ×0.79
- valuation_snapshotsrent estimate 2950/mo (range 2650-3250)· as of 12 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -1,020/mo, -35% 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 10 Nov 2026
Seller motivationNot scored
context, not scored: 1 price cut(s), 120 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 10 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

£544,000£833,500

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£725,000

At the asking price

Monthly rent£2,950/mo

Evidenced range £2,650-£3,250

Interest rate5.4%

Loan to value75%

Cash required: £245,050
Net cash flow: -£405/mo
Cash on cash: -2.0%
Score at this price: 15

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.21 - 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 100080499463Valuation edge · as of 12 Oct 2026
property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 5.9%Valuation edge · as of 29 Oct 2026
valuation_snapshotsrent estimate 2950/mo (range 2650-3250)Rental economics · as of 12 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 10 Nov 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 10 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 2950/mo (range 2650-3250)
Seller motivation could not be scored
context, not scored: 1 price cut(s), 120 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. 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. Treat the gap to the estimate as unproven - compare recent sold prices on the street yourself before pricing an offer around it.
On later completions, homes listed below their estimate sold at the same share of the asking price as the rest.
4. Commission a full structural survey, not a basic condition report.
The score prices market evidence, not the fabric of the building.

Valuation & Market

Sale Estimate£771,000

Rent Estimate (pcm)£2,950

Gross Yield4.88%

1y Growth-

3y Growth+2.8%

5y Growth+4.1%

10y Growth+4.2%

Last Sold Price-

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceModerate
RadonLow
MiningLow
LandslideLow
Air QualityLow
NoiseModerate

View Full Risk Report

Planning Activity

Recent Apps

0HP6 5AE

Approval Rate

-12mo

Development

low

PL/26/08844/FA
Householder application for the construction of a front / porch extension with canopy, raised decking in rear garden
Pending
PL/26/08867/FA
Householder application for the erection of a part single storey/part double storey rear extension following the demolition of the existing sunroom, demolition of the existing garage and erection of a part single storey/part double storey side extension, three off road parking spaces and grass area proposed and alterations to the fenestration.
Pending
PL/26/08752/KA
T1 Maple - Crown reduction reducing the overall height and lateral spread by approximately 1m. T2 Variegated sycamore maple - Crown reduction reducing the overall height by approximately 1.5 metres and shortening the lateral limbs by approximately 1.5 metres.
Pending

View Planning Timeline

Ownership

Corporate Ownership55.6%
Overseas OwnershipNo
Lease Term Remaining-
CovenantsRestrictive
Lease Type-
Last Ownership Change-
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

18 Mbps

Mobile 4G/5G Coverage

EEThreeO2Vodafone

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£35,937

Population Density-

Owner Occupied69%

Age Distribution

0-15 19%16-64 58%65+ 23%

View Area Profile

Schools Nearby

Home Tuition Service
0.1 mi
-
Dr Challoner's Grammar School
0.2 mi
Outstanding
Chestnut Lane School
0.5 mi
Area grades2025
Inspected after Ofsted withdrew the single overall grade.
Woodside Junior School
0.5 mi
Good

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

View All Schools

Comparables

View All

9 Chiltern Avenue
-
£1.08M
-
3 Chiltern Avenue
-
£710k
-
5 Chiltern Avenue
-
£740k
-
9 Chiltern Avenue
-
£589k
-

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