9 Elm Street, Cambridge, CB1 1EJ

UPRN:200004167040Semi-Detached House3 bedsBuilt before 1900

FreeholdCouncil Tax: Band EEPC: C (70)

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

HP Score

/ 100

Mixed

Verdict

yesterday

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

Evidence

19 of 21 sources

Sale Estimate

£832,000

£790k - £874kHigh

Estimate

£832k

Range

£790k – £874k

Rent Estimate (pcm)

£3,150

£3k - £3k

Monthly

£3,150

Yield

4.72%

Verdict

Derived from HomePortfolio scores

9 Elm Street earns an INVESTIGATE rating with HP Score 61/100. Investment score 59/100 reflects moderate fundamentals. Crime intensity is elevated. Walkability is excellent (92/100). 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 Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

61/ 100

Mixed

Investment Score

59/ 100

Moderate

100

Crime Score

100/ 100

Elevated

Walkability

92/ 100

Excellent

Transit & Bike

Transit 62Bike 96

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 +3.8% (HIGH), sold-comps -31.8%, £/sqft -31.7%] → 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 14 Nov 2026
- valuation_snapshotsestimate for 200004167040· as of 14 Nov 2026
- property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 21.1%· as of 13 Nov 2026
Rental economics0/40
gross yield 4.7%; range width penalty ×0.79
- valuation_snapshotsrent estimate 3150/mo (range 2800-3450)· as of 14 Nov 2026· verify before relying on this
Stress margin0/30
stressed cash flow -1,190/mo, -38% 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: 0 price cut(s), 58 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
406 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

£600,000£920,000

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£800,000

At the asking price

Monthly rent£3,150/mo

Evidenced range £2,800-£3,450

Interest rate5.4%

Loan to value75%

Cash required: £271,300
Net cash flow: -£519/mo
Cash on cash: -2.3%
Score at this price: 15

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.17 - 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 200004167040Valuation edge · as of 14 Nov 2026
property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 21.1%Valuation edge · as of 13 Nov 2026
valuation_snapshotsrent estimate 3150/mo (range 2800-3450)Rental economics · as of 14 Nov 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 3150/mo (range 2800-3450)
Seller motivation could not be scored
context, not scored: 0 price cut(s), 58 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. 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.
3. 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£832,000

Rent Estimate (pcm)£3,150

Gross Yield4.72%

1y Growth-

3y Growth+0.6%

5y Growth+1.0%

10y Growth+1.9%

Last Sold Price£345,000 (2009-09-28)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceLow
RadonLow
MiningLow
LandslideLow
Air QualityLow
NoiseLow

View Full Risk Report

Planning Activity

Recent Apps

0CB1 1EJ

Approval Rate

-12mo

Development

low

26/04209/LBC
Installation of air source heat pump in rear garden, replacement of internal radiators, addition of cupboard to ground floor kitchen and replacement of existing timber handrail to rear first floor balcony with metal railings.
Pending
26/04208/HFUL
Installation of air source heat pump in rear garden and replacement of existing timber handrail to rear first floor balcony with metal railings.
Pending
26/1315/TTCA
T1 Rowan - Fell. Reason: Parking space too short for vehicle and applicant wishes to have room to install an EV charger
Pending

View Planning Timeline