20 Chester Street, London, SW1X 7BL

UPRN:100022734834Terrace Property6 bedsBuilt before 1900

FreeholdCouncil Tax: Band HEPC: D (57)

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

HP Score

/ 100

Strong

Verdict

yesterday

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

Evidence

20 of 21 sources

Sale Estimate

£7,184,000

£5.75M - £8.62MLow

Estimate

£7.18M

Range

£5.75M – £8.62M

Rent Estimate (pcm)

£31,350

£29k - £34k

Monthly

£31,350

Yield

4.56%

Verdict

Derived from HomePortfolio scores

20 Chester Street earns an INVESTIGATE rating with HP Score 77/100. Investment score 63/100 reflects moderate fundamentals. Crime intensity is moderate. Walkability is excellent (93/100). 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

77/ 100

Strong

Investment Score

63/ 100

Moderate

Crime Score

39/ 100

Elevated

Walkability

93/ 100

Excellent

Transit & Bike

Transit 100Bike 66

Walk Score, out of 100

Opportunity

Not scored as an opportunity

We will not put a number on this one.

asking price missing or outside scoring range

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£8,250,000

At the asking price

Monthly rent£31,350/mo

Evidenced range £28,850-£33,800

Interest rate5.4%

Loan to value75%

Cash required: £3,380,050
Net cash flow: -£6,140/mo
Cash on cash: -2.2%
Score at this price: -

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.13 - below the usual 1.25 test. These are your assumptions, not evidence: only the pre-filled rent and price come from the record.

Risks

What could kill this deal

Score confidence is low
largely a single source - treat the number as a prompt, not a conclusion

Property risk deep-dive →flood, subsidence, crime, environment - the full domain

Plan

Before you offer

1. 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£7,184,000

Rent Estimate (pcm)£31,350

Gross Yield4.56%

1y Growth+58.2%

3y Growth+6.5%

5y Growth+8.8%

10y Growth+3.3%

Last Sold Price£1,250,000 (1997-09-01)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningUnknown
LandslideLow
Air QualityLow
NoiseLow

View Full Risk Report

Planning Activity

Recent Apps

1SW1X 7BL

Approval Rate

-12mo

Development

low

26/07578/ADFULL
Details of the replacement plant screens pursuant to Condition 5 of planning permission dated 9 April 2026 (RN: 25/09221/FUL)
Pending
26/07575/LBC
Alterations to entrance hall including insertion of new lobby doors.
Pending
26/07573/ADFULL
Details of detailed design and method statement for below ground structures pursaunt to condition 46 of planning permission dated 18th May 2026 (RN 25/06322/FULL)
Pending

View Planning Timeline

Ownership

Corporate Ownership29.8%
Overseas OwnershipNo
Lease Term Remaining-
CovenantsRestrictive
Lease TypeFreehold
Last Ownership Change1997-09-01
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

19 Mbps

Mobile 4G/5G Coverage

EEThreeO2Vodafone

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£45,172

Population Density4,507 /km²

Owner Occupied53%

Age Distribution

0-15 14%16-64 69%65+ 17%

View Area Profile

Schools Nearby

St Peter's Eaton Square CofE Primary School
0.3 mi
Area grades2025
Inspected after Ofsted withdrew the single overall grade.
More House School
0.4 mi
Inspected by ISI
Inchbald School of Design
0.4 mi
-
Eaton House School
0.4 mi
Inspected by ISI

0 of 4 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

View All Schools

Comparables

View All

31 Chester Street
-
£13.00M
-
19 Chester Street
-
£8.22M
-
22 Chester Street
-
£12.00M
-
32 Chester Street
-
£11.75M
-

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