1 Blyth House, Macarthur Close, Erith, DA8 1BL

UPRN:10011848522Flat/Maisonette2 bedsBuilt 1996-2002

LeaseholdCouncil Tax: Band CEPC: C (74)

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

1 Blyth House, Macarthur Close, Erith, DA8 1BL

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

£252,000

£240k - £265kHigh

Estimate

£252k

Range

£240k – £265k

Rent Estimate (pcm)

£1,600

£2k - £2k

Monthly

£1,600

Yield

11.64%

Verdict

Derived from HomePortfolio scores

1 Blyth House earns an INVESTIGATE rating with HP Score 65/100. Investment score 66/100 reflects moderate fundamentals. Crime intensity is moderate. Walkability is limited (66/100). 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 NationsMarket 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 leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

65/ 100

Mixed

Investment Score

66/ 100

Moderate

Crime Score

59/ 100

Elevated

Walkability

66/ 100

Moderate

Transit & Bike

Transit 44Bike 64

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence1 independent sourceLead to verifyListing checked 30 Oct 2026

This rests largely on a single source. Treat the score as a prompt to investigate, not a conclusion.

Check before relying on this score: the estimate sits 35% above the ask; lead to verify: leasehold with no service charge disclosed - the stress test assumes GBP 0. It ranks after every home whose inputs are verified.

Valuation edge2.5/15
claims [AVM +34.5% (HIGH), sold-comps +27.3%, £/sqft +27.4%] → measured edge +0.50pp of the ask; on later-registered sales an AVM discount carried no edge and a sold-evidence gap at most +0.5pp
Market estimate used (HIGH confidence) · snapshot 9 Oct 2026
- valuation_snapshotsestimate for 10011848522· as of 9 Oct 2026
- property_comparablessold-evidence family (implied value + £/sqft): 8 comps, dispersion 11.3%· as of 20 Oct 2026
Rental economics38/40
gross yield 11.6%; range width penalty ×0.95; the estimate this rent rides on sits 35% above the ask - check the rent describes the advertised home
- valuation_snapshotsrent estimate 1600/mo (range 1500-1700)· as of 9 Oct 2026· verify before relying on this
- valuation_snapshotssale estimate 35% above the ask on the same snapshot - verify the rent describes this home· as of 9 Oct 2026· verify before relying on this
- listing_factslisting text signals condition works - budget before trusting any yield· as of 30 Oct 2026· verify before relying on this
Stress margin21.9/30
stressed cash flow +350/mo, +22% 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 30 Oct 2026· verify before relying on this
Seller motivationNot scored
context, not scored: 1 price cut(s), 329 days on market; homes with a cut sold 0.2-0.3pp further below the cut ask, which is not an edge
- portal_listingsprice_changes + first_published_date· as of 30 Oct 2026
Risk & liquidity14.7/15
232 sales/12mo in area; valuation range width 10%
- property_intelligencetransactions_12mo

4 of 4 components scored. Ranks on gross yield, the stress margin, risk and disclosed facts. A pricing claim earns only its measured edge: today 0 for the market estimate and at most +0.5pp for sold evidence. The score itself is not yet checked against the outcomes of homes it scored.

Economics

What happens to your money

Price sensitivityScores 80+ up to £152,500

£128,000£189,500

The same scorer re-run at hypothetical asking prices, holding rent, comps and listing history constant. Not a prediction of what the seller would accept.

Your assumptions

Purchase price£165,000

At the asking price

Monthly rent£1,600/mo

Evidenced range £1,500-£1,700

Interest rate5.4%

Loan to value75%

Cash required: £51,600
Net cash flow: £551/mo
Cash on cash: 12.8%
Score at this price: 77

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 2.87 - 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_snapshotsestimate for 10011848522Valuation edge · as of 9 Oct 2026
property_comparablessold-evidence family (implied value + £/sqft): 8 comps, dispersion 11.3%Valuation edge · as of 20 Oct 2026
valuation_snapshotsrent estimate 1600/mo (range 1500-1700)Rental economics · as of 9 Oct 2026 · verify before relying on this
valuation_snapshotssale estimate 35% above the ask on the same snapshot - verify the rent describes this homeRental economics · as of 9 Oct 2026 · verify before relying on this
listing_factslisting text signals condition works - budget before trusting any yield

Risks

What could kill this deal

Score confidence is low
largely a single source - treat the number as a prompt, not a conclusion
Rental economics needs verification before you rely on it
rent estimate 1600/mo (range 1500-1700)
Rental economics needs verification before you rely on it
sale estimate 35% above the ask on the same snapshot - verify the rent describes this home

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. Ask the agent why the price was reduced and whether a previous sale fell through.
1 price cut(s) recorded on the listing history.
3. Set your walk-away price before viewing - above £152,500 the deal stops scoring well.
Computed by re-running the score at higher prices.
4. Treat the gap to the estimate as unproven - compare recent sold prices on the street yourself before pricing an offer around it.
On later completions, homes listed below their estimate sold at the same share of the asking price as the rest.

Valuation & Market

Sale Estimate£252,000

Rent Estimate (pcm)£1,600

Gross Yield11.64%

1y Growth-

3y Growth+0.8%

5y Growth+2.6%

10y Growth+2.7%

Last Sold Price£220,000 (2017-11-03)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningLow
LandslideModerate
Air QualityLow
NoiseLow

View Full Risk Report

Planning Activity

Recent Apps

0DA8 1BL

Approval Rate

-12mo

Development

low

26/02018/LDCP
Lawful Development Certificate (Proposed) for the change of use from a dwellinghouse (Class C3) to a Residential Institution (Class C2) for up to 4 children.
Pending
19/02274/FULM05
Application to approve details of condition 11 (details of access) and 12 (proposed access)pursuant to application 19/02274/FULM for Demolition of the existing buildings and erection of 25 dwellings comprising 5 x 4 bed, 7 x 3 bed, 5 x 2 bed houses and 8 x 1 bed supported living apartments together with car parking and associated works
Pending
22/02989/FULMMIN02
Non material amendment to vary condition 4, 9 and 10 and add new condition of approved application 22/02989/FULM which allowed the 'Rearrangement of the existing light industrial Class E(g)(iii) units on the ground floor to form 1 Class E(b) unit and 7 light industrial Class E(g)(iii) units. Formation of 31 live/work units (Sui Generis) by converting the existing upper floors, along with the construction of two additional floors above. Rearrangement of the existing car parking facilities and public realm works'.
Pending

View Planning Timeline

Ownership

Corporate Ownership63.8%
Overseas OwnershipNo
Lease Term Remaining124 yrs
CovenantsNone
Lease TypeLeasehold
Last Ownership Change2017-11-03
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

8 Mbps

Mobile 4G/5G Coverage

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£36,883

Population Density-

Owner Occupied27%

Age Distribution

0-15 30%16-64 65%65+ 5%

View Area Profile

Schools Nearby

Lime Wood Primary School
0.5 mi
Report card2026
Ofsted no longer awards a single overall grade.
Christ Church (Erith) CofE Primary School
0.5 mi
Area grades2025
Inspected after Ofsted withdrew the single overall grade.
Trinity Church of England School, Belvedere
0.5 mi
Report card2026
Ofsted no longer awards a single overall grade.
St Fidelis Catholic Primary School
0.7 mi
OutstandingImproving

2 of 12 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

View All Schools

Comparables

View All

Blyth House Macarthur Close
-
£245k
-
Blyth House Macarthur Close
-
£215k
-
Blyth House Macarthur Close
-
£255k
-
Blyth House Macarthur Close
-
£260k
-

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