10 Old Forge Way, Sidcup, DA14 4QL

UPRN:100020257883-Beds -Built 1930-1949

Tenure: -Council Tax: Band GEPC: E (52)

Data freshness:Listing· freshPrice Paid· freshPlanning· 1mo agoEPC· 2mo agoRisk· 5mo agoConnectivity· 1mo agoSchools· 1mo agoAmenities· 2mo agoArea· Census 2021Council Tax· 6mo ago

HP Score

/ 100

Strong

Verdict

yesterday

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

Evidence

17 of 21 sources

Sale Estimate

£1,080,000

£864k - £1.29MLow

Estimate

£1.08M

Range

£864k – £1.29M

Rent Estimate (pcm)

£3,400

£3k - £4k

Monthly

£3,400

Yield

5.10%

Verdict

Derived from HomePortfolio scores

10 Old Forge Way earns an INVESTIGATE rating with HP Score 79/100. Investment score 64/100 reflects moderate fundamentals. Crime intensity is very low. Walkability is good (77/100). 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 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 covenantsHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

79/ 100

Strong

Investment Score

64/ 100

Moderate

Crime Score

15/ 100

Low

Walkability

77/ 100

High

Transit & Bike

Transit 26Bike 43

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 economics0.5/40
gross yield 5.1%; range width penalty ×0.67; the estimate this rent rides on sits 26% above the ask - check the rent describes the advertised home
- valuation_snapshotsrent estimate 3400/mo (range 2950-3850)· as of 10 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 10 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -1,006/mo, -30% of rent (6.75% on a 75% loan; no service charge or ground rent disclosed); fails the stress - earns nothing
- underwriting_assumptionscosts not disclosed by the advert· as of 5 Nov 2026
Risk & liquidity9.3/15
212 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£800,000

At the asking price

Monthly rent£3,400/mo

Evidenced range £2,950-£3,850

Interest rate5.4%

Loan to value75%

Cash required: £271,300
Net cash flow: -£346/mo
Cash on cash: -1.5%
Score at this price: -

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.26 - 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 3400/mo (range 2950-3850)Rental economics · as of 10 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 10 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 5 Nov 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 5 Nov 2026
property_intelligencetransactions_12moRisk & liquidity

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 3400/mo (range 2950-3850)

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£1,080,000

Rent Estimate (pcm)£3,400

Gross Yield5.10%

1y Growth-

3y Growth+1.1%

5y Growth+0.1%

10y Growth+1.8%

Last Sold Price-

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningModerate
LandslideLow
Air QualityLow
NoiseLow

View Full Risk Report

Planning Activity

Recent Apps

2DA14 4QL

Approval Rate

-12mo

Development

low

25/01333/FULM02
Application to approve details of condition 4 (Archaeology) pursuant to application 25/01333/FULM for Erection of a detached building to provide a storage and distribution facility (Class B2 / B8) with ancillary offices (Class E(g)) along with associated alterations to retained parking areas, provision of cycle and bin stores, as well as alterations to existing River House
Pending
25/01333/FULM03
Application to approve details of condition 5 (Contaminated Land) pursuant to application 25/01333/FULM for the construction of a detached building to provide a storage and distribution facility (Class B2 / B8) with ancillary offices (Class E(g)) along with associated alterations to retained parking areas, provision of cycle and bin stores, as well as alterations to existing River House.
Pending
26/02006/S211
Works to one Sycamore Tree in Christ Church Conservation Area.
Pending

View Planning Timeline

Ownership

Corporate Ownership52.4%
Overseas OwnershipNo
Lease Term Remaining-
CovenantsRestrictive
Lease Type-
Last Ownership Change-
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

17 Mbps

Mobile 4G/5G Coverage

EEThreeO2Vodafone

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£36,883

Population Density6,033 /km²

Owner Occupied59%

Age Distribution

0-15 16%16-64 60%65+ 24%

View Area Profile

Schools Nearby

Merton Court School
0.2 mi
Inspected by ISI
Orchard Primary School
0.3 mi
Report card2026
Ofsted no longer awards a single overall grade.
Benedict House Preparatory School
0.4 mi
Inspected by ISI
West Lodge School
0.4 mi
Inspected by ISI

2 of 10 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

View All Schools

Comparables

View All

14 Old Forge Way
-
£840k
-
11 Old Forge Way
-
£800k
-
6 Old Forge Way
-
£850k
-
7 Old Forge Way
-
£1.06M
-

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