10 The Serpentine, Aylesbury, HP19 8HJ

UPRN:766337802Flat/MaisonetteBeds -Built 2012-2021

LeaseholdCouncil Tax: Band CEPC: C (75)

Data freshness:Listing· freshPrice Paid· freshPlanning· 4mo agoEPC· 3mo agoRisk· 5mo agoConnectivity· 1mo agoSchools· 4mo agoAmenities· 1mo agoArea· Census 2021

HP Score

/ 100

Mixed

Verdict

3 days ago

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

Evidence

20 of 21 sources

Sale Estimate

£199,000

£189k - £209kHigh

Estimate

£199k

Range

£189k – £209k

Rent Estimate (pcm)

£1,300

£1k - £1k

Monthly

£1,300

Yield

8.21%

Verdict

Derived from HomePortfolio scores

10 The Serpentine earns an INVESTIGATE rating with HP Score 66/100. Investment score 69/100 reflects moderate fundamentals. Crime intensity is elevated. Walkability is excellent (86/100). 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

66/ 100

Mixed

Investment Score

69/ 100

Moderate

Crime Score

76/ 100

Elevated

Walkability

86/ 100

Excellent

Transit & Bike

Transit 25Bike 65

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence1 independent sourceLead to verifyListing checked 31 Oct 2026

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

Check before relying on this score: leasehold with no service charge disclosed - the stress test assumes GBP 0. It ranks after every home whose inputs are verified.

Valuation edge0/15
claims [AVM +4.5% (HIGH), sold-comps -8.0%, £/sqft -8.2%] → 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 9 Oct 2026
- valuation_snapshotsestimate for 766337802· as of 9 Oct 2026
- property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 15.4%· as of 4 Nov 2026
Rental economics25.7/40
gross yield 8.2%; range width penalty ×1.00
- valuation_snapshotsrent estimate 1300/mo (range 1250-1350)· as of 9 Oct 2026· verify before relying on this
Stress margin1.8/30
stressed cash flow +24/mo, +2% of rent (6.75% on a 75% loan; no service charge or ground rent disclosed); passes the stress; leasehold with no service charge disclosed - the stress assumes GBP 0
- underwriting_assumptionscosts not disclosed by the advert· as of 31 Oct 2026· verify before relying on this
Seller motivationNot scored
context, not scored: 0 price cut(s), 97 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 31 Oct 2026
Risk & liquidity14.6/15
273 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 sensitivityScores 70+ up to £147,000

£142,500£218,500

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£190,000

At the asking price

Monthly rent£1,300/mo

Evidenced range £1,250-£1,350

Interest rate5.4%

Loan to value75%

Cash required: £59,600
Net cash flow: £259/mo
Cash on cash: 5.2%
Score at this price: 42

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 2.03 - clears 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 766337802Valuation edge · as of 9 Oct 2026
property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 15.4%Valuation edge · as of 4 Nov 2026
valuation_snapshotsrent estimate 1300/mo (range 1250-1350)Rental economics · as of 9 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 31 Oct 2026 · verify before relying on this
portal_listingsprice_changes + first_published_dateSeller motivation · as of 31 Oct 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 1300/mo (range 1250-1350)
Stress margin needs verification before you rely on it
costs not disclosed by the advert

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. Set your walk-away price before viewing - above £147,000 the deal stops scoring well.
Computed by re-running the score at higher prices.
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£199,000

Rent Estimate (pcm)£1,300

Gross Yield8.21%

1y Growth-

3y Growth+2.8%

5y Growth+2.4%

10y Growth+2.3%

Last Sold Price£122,000 (2012-08-20)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonModerate
MiningUnknown
LandslideModerate
Air QualityLow
NoiseHigh

View Full Risk Report

Planning Activity

Recent Apps

0HP19 8HJ

Approval Rate

-12mo

Development

low

PL/26/08851/P14JKO
Prior notification application (Part 14, Class J) to install a 220kw solar photovoltaic roof mounted system
Pending
PL/26/08102/SA
Certificate of Lawfulness for proposed use of existing light-industrial units as a 24 hour gymnasium and fitness facility falling within Use Class E(d), operating seven days per week
Pending
PL/26/08477/P14JKO
Prior notification application (Part 14, Class J) for solar photovoltaic roof mounted system
Pending

View Planning Timeline