Flat A, 315 Brompton Road, London, SW3 2DY

UPRN:217007661Flat/MaisonetteBeds -Built 1983-1990

LeaseholdCouncil Tax: Band GEPC: C (70)

Data freshness:Listing· freshPrice Paid· freshPlanning· freshOwnership· freshEPC· 6mo agoRisk· 5mo agoConnectivity· 1mo agoSchools· freshAmenities· 2mo agoArea· Census 2021

Flat A, 315 Brompton Road, London, SW3 2DY

HP Score

/ 100

Mixed

Verdict

today

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

Evidence

19 of 21 sources

Sale Estimate

£1,341,000

£1.07M - £1.61MLow

Estimate

£1.34M

Range

£1.07M – £1.61M

Rent Estimate (pcm)

£6,100

£6k - £7k

Monthly

£6,100

Yield

7.36%

Verdict

Derived from HomePortfolio scores

Flat A earns an INVESTIGATE rating with HP Score 67/100. Investment score 71/100 reflects strong fundamentals. Crime intensity is elevated. Walkability is excellent (99/100). 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)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

67/ 100

Mixed

Investment Score

71/ 100

High

Crime Score

91/ 100

Elevated

Walkability

99/ 100

Excellent

Transit & Bike

Transit 79Bike 70

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 economics15.8/40
gross yield 7.4%; range width penalty ×0.84; the estimate this rent rides on sits 26% above the ask - check the rent describes the advertised home
- valuation_snapshotsrent estimate 6100/mo (range 5550-6650)· as of 9 Oct 2026· verify before relying on this
- valuation_snapshotssale estimate 26% above the ask on the same snapshot - verify the rent describes this home· as of 9 Oct 2026· verify before relying on this
Stress margin2.6/30
stressed cash flow +156/mo, +3% 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 6 Nov 2026· verify before relying on this
Risk & liquidity9.2/15
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£995,000

At the asking price

Monthly rent£6,100/mo

Evidenced range £5,550-£6,650

Interest rate5.4%

Loan to value75%

Cash required: £343,050
Net cash flow: £865/mo
Cash on cash: 3.0%
Score at this price: -

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.82 - 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 6100/mo (range 5550-6650)Rental economics · as of 9 Oct 2026 · verify before relying on this
valuation_snapshotssale estimate 26% above the ask on the same snapshot - verify the rent describes this homeRental economics · as of 9 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 6 Nov 2026 · verify before relying on this
portal_listingsprice_changes + first_published_dateSeller motivation · as of 6 Nov 2026
property_intelligencetransactions_12mo

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 6100/mo (range 5550-6650)

Plan

Before you offer

1. Get two written rental appraisals from local lettings agents.
The market estimate this rent rides on sits far above the asking price, so the rent may describe a different home.
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£1,341,000

Rent Estimate (pcm)£6,100

Gross Yield7.36%

1y Growth-

3y Growth-9.5%

5y Growth-4.5%

10y Growth-2.4%

Last Sold Price-

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningUnknown
LandslideLow
Air QualityLow
NoiseHigh

View Full Risk Report

Planning Activity

Recent Apps

1SW3 2DY

Approval Rate

0%12mo

Development

low

26/07385/TCA
T238 & T239 - Arbutus unedo (Strawberry Tree): Reduce crown by specified extent - height and branch length by up to approximately 2.5m to allow cctv camera to have clear site of entry point for safety, as there a safe guarding issue for student accommodation. Pruning should be back at previous pollard points and at suitable growth points.
Pending
26/07362/ADFULL
Detailed drawings of secure cycle storage for the enlarged building pursuant to condition 7 of planning permission dated 2nd April 2026 (RN 26/00738/FULL)
Pending
26/07272/LBC
Installation of 1 temporary structures (marquee) on the gravelled terrace above basement level. (Linked with 26/07271/FULL)
Pending

View Planning Timeline

Ownership

Corporate Ownership32.6%
Overseas OwnershipNo
Lease Term Remaining158 yrs
CovenantsRestrictive
Lease TypeLeasehold
Last Ownership Change-
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

22 Mbps

Mobile 4G/5G Coverage

EEThreeO2Vodafone

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£46,690

Population Density5,651 /km²

Owner Occupied47%

Age Distribution

0-15 11%16-64 75%65+ 14%

View Area Profile

Schools Nearby

Marlborough Primary School
0.2 mi
Area grades2024
Inspected after Ofsted withdrew the single overall grade.
Oratory Roman Catholic Primary School
0.3 mi
Outstanding
Lycee Francais Charles de Gaulle
0.3 mi
Good
Institute of Cancer Research
0.3 mi
-

2 of 5 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

View All Schools

Comparables

View All

279 - 283 Brompton Road
-
£1.86M
-
301 Brompton Road
-
£1.73M
-
295 - 297 Brompton Road
-
£225k
-
295 Brompton Road
-
£2.10M
-

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