Flat 15, Winchester House, Beaufort Street, London, SW3 5BJ

UPRN:217004635Flat/MaisonetteBeds -Built before 1900

LeaseholdCouncil Tax: -EPC: C (69)

Data freshness:Listing· freshPrice Paid· freshPlanning· 4mo agoEPC· 6mo agoRisk· 5mo agoConnectivity· 1mo agoAmenities· 1mo agoArea· Census 2021

Flat 15, Winchester House, Beaufort Street, London, SW3 5BJ

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

£460,000

£368k - £551kLow

Estimate

£460k

Range

£368k – £551k

Rent Estimate (pcm)

£2,100

£2k - £2k

Monthly

£2,100

Yield

5.09%

Verdict

Derived from HomePortfolio scores

Flat 15 earns an INVESTIGATE rating with HP Score 81/100. Investment score 71/100 reflects strong fundamentals. Crime intensity is low. Walkability is excellent (98/100). 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

81/ 100

Strong

Investment Score

71/ 100

High

Crime Score

23/ 100

Moderate

Walkability

98/ 100

Excellent

Transit & Bike

Transit 61Bike 74

Walk Score, out of 100

Opportunity

Not scored as an opportunity

We will not put a number on this one.

headline score requires valuation_edge (estimate confidence LOW below scoring floor)

What we could establish

Rental economics0.7/40
gross yield 5.1%; range width penalty ×0.91
- valuation_snapshotsrent estimate 2100/mo (range 1950-2250)· as of 9 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -675/mo, -32% 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 31 Oct 2026· verify before relying on this
Risk & liquidity9.3/15
190 sales/12mo in area; valuation range width 40%
- property_intelligencetransactions_12mo

Withholding a score is deliberate. A number built on missing or stale inputs would look more certain than the evidence allows.

Economics

What happens to your money

Your assumptions

Purchase price£495,000

At the asking price

Monthly rent£2,100/mo

Evidenced range £1,950-£2,250

Interest rate5.4%

Loan to value75%

Cash required: £164,550
Net cash flow: -£217/mo
Cash on cash: -1.6%
Score at this price: -

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.26 - 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_snapshotsrent estimate 2100/mo (range 1950-2250)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
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
Valuation edge could not be scored
estimate confidence LOW below scoring floor
Rental economics needs verification before you rely on it
rent estimate 2100/mo (range 1950-2250)

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. Fill the valuation edge gap before relying on the score.
estimate confidence LOW below scoring floor
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£460,000

Rent Estimate (pcm)£2,100

Gross Yield5.09%

1y Growth-

3y Growth-9.5%

5y Growth-4.5%

10y Growth-2.4%

Last Sold Price£411,000 (2013-09-12)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningUnknown
LandslideLow
Air QualityLow
NoiseModerate

View Full Risk Report

Planning Activity

Recent Apps

0SW3 5BJ

Approval Rate

-12mo

Development

low

2026/3174
Erection of single storey rear extension.
Pending
2026/3156
As Per Report T001 - Lebanon Cedar (6 Months) Sever climbing plant T004 - London Plane (1 Year) Re-pollard T005 - London Plane (1 Year) Re-pollard T008 - London Plane (1 Year) Re-pollard T009 - London Plane (1 Year) Re-pollard T010 - London Plane (1 Year) Re-pollard T011 - London Plane (1 Year) Re-pollard T013 -Winter-flowering Cherry (1 Year) Fell as close to ground level as possible. ALL ITEMS INCLUDING REMOVING ARISING DEBRIS, LEAVING SITE CLEAN AND TIDY.
Pending
2026/3002
Rear Garden T1 - Cherry Fell to ground level and replant with Prunus avium Plena (Double White Cherry Blossom Tree) . Tree is a mature and leaning towards property, tree is too established to re-stake. Felling and replanting will abate problems
Pending

View Planning Timeline

Ownership

Corporate Ownership32.6%
Overseas OwnershipNo
Lease Term Remaining176 yrs
CovenantsRestrictive
Lease TypeLeasehold
Last Ownership Change2013-09-12
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

9 Mbps

Mobile 4G/5G Coverage

EEThreeO2Vodafone

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£46,690

Population Density-

Owner Occupied37%

Age Distribution

0-15 13%16-64 70%65+ 17%

View Area Profile

Schools Nearby

Park Walk Primary School
0.1 mi
Report card2026
Ofsted no longer awards a single overall grade.
Cameron Vale School
0.1 mi
Inspected by ISI
Ashburnham Community School
0.2 mi
Area grades2025
Inspected after Ofsted withdrew the single overall grade.
Francis Holland Preparatory School
0.3 mi
Inspected by ISI

3 of 9 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

View All Schools

Comparables

View All

Winchester House Beaufort Street
-
£362k
-
Winchester House Beaufort Street
-
£375k
-
Winchester House Beaufort Street
-
£465k
-
Winchester House Beaufort Street
-
£375k
-

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