17 Sherbrook Gardens, London, N21 2NX

UPRN:207110367Detached House5 bedsBuilt 1930-1949

FreeholdCouncil Tax: Band GEPC: C (70)

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

HP Score

/ 100

Strong

Verdict

3 days ago

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

Evidence

20 of 21 sources

Sale Estimate

£1,171,000

£1.11M - £1.23MHigh

Estimate

£1.17M

Range

£1.11M – £1.23M

Rent Estimate (pcm)

£4,100

£4k - £5k

Monthly

£4,100

Yield

3.94%

Verdict

Derived from HomePortfolio scores

17 Sherbrook Gardens earns an INVESTIGATE rating with HP Score 83/100. Investment score 64/100 reflects moderate fundamentals. Crime intensity is very low. Walkability is good (82/100). 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 leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

83/ 100

Strong

Investment Score

64/ 100

Moderate

Crime Score

7/ 100

Low

Walkability

82/ 100

High

Transit & Bike

Transit 36Bike 65

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence0 independent sourcesListing checked 2 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 -6.7% (HIGH)] → 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 13 Oct 2026
- valuation_snapshotsestimate for 207110367· as of 13 Oct 2026
Rental economics0/40
gross yield 3.9%; range width penalty ×0.71
- valuation_snapshotsrent estimate 4100/mo (range 3600-4600)· as of 13 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -2,390/mo, -58% 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 2 Nov 2026
Seller motivationNot scored
context, not scored: 0 price cut(s), 47 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 2 Nov 2026
Risk & liquidity14.6/15
169 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

£937,500£1,437,500

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£1,250,000

At the asking price

Monthly rent£4,100/mo

Evidenced range £3,600-£4,600

Interest rate5.4%

Loan to value75%

Cash required: £445,050
Net cash flow: -£1,380/mo
Cash on cash: -3.7%
Score at this price: 15

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 0.97 - 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 207110367Valuation edge · as of 13 Oct 2026
valuation_snapshotsrent estimate 4100/mo (range 3600-4600)Rental economics · as of 13 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 2 Nov 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 2 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 4100/mo (range 3600-4600)
Seller motivation could not be scored
context, not scored: 0 price cut(s), 47 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£1,171,000

Rent Estimate (pcm)£4,100

Gross Yield3.94%

1y Growth-

3y Growth-0.2%

5y Growth+0.8%

10y Growth+2.2%

Last Sold Price£532,500 (2007-10-22)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningUnknown
LandslideLow
Air QualityLow
NoiseLow

View Full Risk Report

Planning Activity

Recent Apps

0N21 2NX

Approval Rate

-12mo

Development

low

26/04483/HOU
Alterations to rear garden access involving demolition of existing steps, replacement with raised decked platform, involving new staircase for garden access, railing and access doors for storage under stairs, open sided, retractable, end fix awning with gutter brackets to the rear elevation.
Pending
26/04430/TPO
Works to a tree covered by LBE ORDER NO (152) 1983 : T1 Horse Chestnut - repollard by 2m back to previous pollard points, remove lower right side limb.
Pending
26/04400/HOU
Single storey rear extension.
Pending

View Planning Timeline