41 Papillon Apartments, 2 Monarch Square, London, SW11 1DE

UPRN:10097179696Flat/MaisonetteBeds -Built -

Tenure: -Council Tax: Band CEPC: -

Data freshness:Listing· freshPlanning· 4mo agoOwnership· freshRisk· 5mo agoConnectivity· 1mo agoSchools· freshAmenities· 2mo agoArea· Census 2021

41 Papillon Apartments, 2 Monarch Square, London, SW11 1DE

HP Score

/ 100

Mixed

Verdict

3 days ago

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

Evidence

11 of 21 sources

Sale Estimate

£260,000

£208k - £312kLow

Estimate

£260k

Range

£208k – £312k

Rent Estimate (pcm)

£1,250

£1k - £1k

Monthly

£1,250

Yield

3.00%

Verdict

Derived from HomePortfolio scores

41 Papillon Apartments earns an INVESTIGATE rating with HP Score 51/100. Investment score 56/100 reflects moderate fundamentals. Crime intensity is elevated. 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 listingsMarket 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)ONS Census 2021Police.ukPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

51/ 100

Mixed

Investment Score

56/ 100

Moderate

100

Crime Score

100/ 100

Elevated

Walkability

No data

Transit & Bike

No data

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 economics0/40
gross yield 3.0%; range width penalty ×0.88
- valuation_snapshotsrent estimate 1250/mo (range 1150-1350)· as of 13 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -1,321/mo, -106% 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 5 Nov 2026· verify before relying on this
Risk & liquidity9.2/15
774 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£500,000

At the asking price

Monthly rent£1,250/mo

Evidenced range £1,150-£1,350

Interest rate5.4%

Loan to value75%

Cash required: £166,300
Net cash flow: -£822/mo
Cash on cash: -5.9%
Score at this price: -

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 0.74 - 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_snapshotsrent estimate 1250/mo (range 1150-1350)Rental economics · as of 13 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 5 Nov 2026 · verify before relying on this
portal_listingsprice_changes + first_published_dateSeller motivation · as of 5 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
Valuation edge could not be scored
estimate confidence LOW below scoring floor
Rental economics needs verification before you rely on it
rent estimate 1250/mo (range 1150-1350)

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£260,000

Rent Estimate (pcm)£1,250

Gross Yield3.00%

1y Growth-

3y Growth-4.7%

5y Growth-0.1%

10y Growth-0.5%

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

0SW11 1DE

Approval Rate

-12mo

Development

low

2026/3254
Erection of a mansard roof extension, demolition of the existing rear extension and erection of a replacement two-storey rear extension, together with the conversion of the property into 2 self contained flats from an existing shop and flat
On-line
2026/3248
T1 Mimosa (x1) Fell to ground level. Reason: The tree has become excessively large for the location. It is suppressing smaller adjacent trees. The trunk is also pressing against the boundary wall with No.59 Spencer Park and is likely to cause damage if retained. T2 + T3 Himalayan Birch (x2) Crown lift by 1.5m. Reason: To allow more light to the plants below. T4 Cherry (x1) Reduce crown by 1.5m. Reason: To redress the balance as supressed by the Birches. T5 Paulownia (x1) Crown lift by 1.5m. Reason: To allow more light to the plants below.
Pending
2026/3233
Walnut - Reduce crown by approx 1-2m to contain development and limit shade and debris
Pending

View Planning Timeline