27B Helix Gardens, London, SW2 2JL

UPRN:200000466077Converted Flat3 bedsBuilt -

LeaseholdCouncil Tax: -EPC: -

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

HP Score

/ 100

Strong

Verdict

yesterday

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

Evidence

17 of 21 sources

Sale Estimate

£735,000

£661k - £808kMedium

Estimate

£735k

Range

£661k – £808k

Rent Estimate (pcm)

£3,850

£4k - £4k

Monthly

£3,850

Yield

4.99%

Verdict

Derived from HomePortfolio scores

27B Helix Gardens earns an INVESTIGATE rating with HP Score 82/100. Investment score 63/100 reflects moderate fundamentals. Crime intensity is low. Walkability is excellent (94/100). 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 SourcesPortal listingsOfcom Connected NationsMarket 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

82/ 100

Strong

Investment Score

63/ 100

Moderate

Crime Score

18/ 100

Moderate

Walkability

94/ 100

Excellent

Transit & Bike

Transit 36Bike 66

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence0 independent sourcesLead to verifyListing checked 4 Nov 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 edge-0.6/15
claims [AVM -25.9% (MEDIUM)] → measured edge -0.12pp of the ask; on later-registered sales an AVM discount carried no edge and a sold-evidence gap at most +0.5pp; asking more than 10% above the estimate (measured -0.33pp)
Market estimate used (MEDIUM confidence) · snapshot 13 Oct 2026
- valuation_snapshotsestimate for 200000466077· as of 13 Oct 2026
Rental economics0/40
gross yield 5.0%; range width penalty ×0.94
- valuation_snapshotsrent estimate 3850/mo (range 3600-4100)· as of 13 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -1,203/mo, -31% 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 4 Nov 2026· verify before relying on this
Seller motivationNot scored
context, not scored: 0 price cut(s), 48 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 4 Nov 2026
Risk & liquidity12.8/15
475 sales/12mo in area; valuation range width 20%
- 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

£694,000£1,064,000

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£925,000

At the asking price

Monthly rent£3,850/mo

Evidenced range £3,600-£4,100

Interest rate5.4%

Loan to value75%

Cash required: £315,050
Net cash flow: -£456/mo
Cash on cash: -1.7%
Score at this price: 12

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.23 - 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 200000466077Valuation edge · as of 13 Oct 2026
valuation_snapshotsrent estimate 3850/mo (range 3600-4100)Rental economics · as of 13 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 4 Nov 2026 · verify before relying on this
portal_listingsprice_changes + first_published_dateSeller motivation · as of 4 Nov 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
Rental economics needs verification before you rely on it
rent estimate 3850/mo (range 3600-4100)
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. 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£735,000

Rent Estimate (pcm)£3,850

Gross Yield4.99%

1y Growth-

3y Growth-1.0%

5y Growth-0.8%

10y Growth+0.1%

Last Sold Price-

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningModerate
LandslideLow
Air QualityLow
NoiseLow

View Full Risk Report

Planning Activity

Recent Apps

0SW2 2JL

Approval Rate

-12mo

Development

low

26/03206/TCA
To pollard of 3x Plane trees and 1x Larch tree for safety management.
Pending
26/03202/FUL
Retrofit measures installed to existing dwellinghouses. Measures include replacement of windows and doors, and fabric upgrades to roof, including replacement of roof finishings, and replacement of light wells in main roof.
Pending
26/03165/DET
Approval of details pursuant to condition 10 (Transport and Traffic Monitoring) of planning permission ref : 25/03733/RG4 (Temporary use of part of Brockwell Park for Brockwell Live 2026 for up to 32 days (including wet weather buffer days), involving the installation and de-installation of temporary infrastructure including fencing, stages, lighting, public address (PA) systems and other temporary structures and ancillary works) granted on 26.02.2026.
Pending

View Planning Timeline