Basement Flat, 1B Artillery Row, London, SW1P 1RL

UPRN:10033627099-Beds -Built -

Tenure: -Council Tax: -EPC: -

Data freshness:Planning· 4mo agoOwnership· 1mo agoRisk· 5mo agoConnectivity· 1mo agoSchools· freshAmenities· 2mo agoArea· Census 2021

Basement Flat, 1B Artillery Row, London, SW1P 1RL

HP Score

/ 100

Mixed

Verdict

4 days ago

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

Evidence

18 of 21 sources

Sale Estimate

£758,000

£606k - £909kLow

Estimate

£758k

Range

£606k – £909k

Rent Estimate (pcm)

-- - --

Verdict

Derived from HomePortfolio scores

Basement Flat earns an INVESTIGATE rating with HP Score 61/100. Investment score 57/100 reflects moderate fundamentals. Crime intensity is elevated. Walkability is excellent (100/100). Flood risk is not assessed: check the Environment Agency long-term flood map before offering. Every figure here comes from the live HomePortfolio API; anything it does not publish is left out.

Key SourcesPortal 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

61/ 100

Mixed

Investment Score

57/ 100

Moderate

100

Crime Score

100/ 100

Elevated

100

Walkability

100/ 100

Excellent

Transit & Bike

Transit 100Bike 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)
headline score requires rental_economics (no rent estimate available)

What we could establish

Risk & liquidity9.2/15
89 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.

Evidence

Where every number comes from

property_intelligencetransactions_12moRisk & liquidity

Sold comparables in depth Valuation methodology

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 could not be scored
no rent estimate available

Plan

Before you offer

1. Fill the valuation edge gap before relying on the score.
estimate confidence LOW below scoring floor
2. Fill the rental economics gap before relying on the score.
no rent estimate available
3. Fill the stress margin gap before relying on the score.
no rent to stress
4. 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£758,000

Rent Estimate (pcm)-

Gross Yield-

1y Growth-

3y Growth-13.8%

5y Growth+0.3%

10y Growth-5.1%

Last Sold Price-

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningUnknown
LandslideLow
Air QualityLow
NoiseModerate

View Full Risk Report

Planning Activity

Recent Apps

0SW1P 1RL

Approval Rate

-12mo

Development

low

26/07413/LBC
Installation of new fibre optic cable and associated equipment within the basement.
Pending
26/07404/LBC
Refurbishment and enhancement of the building to facilitate its continued use as offices with ancillary residential accommodation, together with associated conservation, restoration, accessibility improvements, building services upgrades, landscaping and ancillary works. Internal and external alterations associated with the repair. (Linked with 26/07403/FULL)
Pending
26/07403/FULL
Refurbishment and enhancement of the building to facilitate its continued use as offices with ancillary residential accommodation, together with associated conservation, restoration, accessibility improvements, building services upgrades, landscaping and ancillary works. Internal and external alterations associated with the repair. (Linked with 26/07404/LBC)
Pending

View Planning Timeline

Ownership

Corporate Ownership21.5%
Overseas OwnershipNo
Lease Term Remaining-
CovenantsRestrictive
Lease Type-
Last Ownership Change-
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

21 Mbps

Mobile 4G/5G Coverage

EEThreeO2Vodafone

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£45,172

Population Density-

Owner Occupied28%

Age Distribution

0-15 11%16-64 81%65+ 8%

View Area Profile

Schools Nearby

The Fountain Christian School
0.1 mi
-
Westminster City School
0.1 mi
Report card2026
Ofsted no longer awards a single overall grade.
The Grey Coat Hospital
0.1 mi
Outstanding
Westminster Cathedral Choir School
0.2 mi
Inspected by ISI

1 of 7 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

View All Schools

Comparables

View All

17 Westminster Palace Gardens
-
£650k
-
5A Westminster Palace Gardens
-
£651k
-
12 Westminster Palace Gardens
-
£1.09M
-
8 Westminster Palace Gardens
-
£1.42M
-

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