Flat 7, 9 Sydenham Hill, London, SE26 6SQ

UPRN:10096039715Purpose Built Flat2 bedsBuilt 2024

Tenure: -Council Tax: Band DEPC: B (84)

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

Flat 7, 9 Sydenham Hill, London, SE26 6SQ

HP Score

/ 100

Strong

Verdict

yesterday

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

Evidence

14 of 21 sources

Sale Estimate

£631,000

£568k - £695kMedium

Estimate

£631k

Range

£568k – £695k

Rent Estimate (pcm)

£3,000

£3k - £3k

Monthly

£3,000

Yield

6.15%

Verdict

Derived from HomePortfolio scores

Flat 7 earns an INVESTIGATE rating with HP Score 83/100. Investment score 73/100 reflects strong fundamentals. Crime intensity is low. 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 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.ukHM Land Registry leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

83/ 100

Strong

Investment Score

73/ 100

High

Crime Score

18/ 100

Moderate

Walkability

No data

Transit & Bike

No data

Opportunity

Why this could be an opportunity

Low confidence1 independent sourceListing checked 30 Oct 2026

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

Valuation edge1.7/15
claims [AVM +7.3% (MEDIUM), sold-comps +2.0%, £/sqft +2.1%] → measured edge +0.34pp 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 (MEDIUM confidence) · snapshot 9 Oct 2026
- valuation_snapshotsestimate for 10096039715· as of 9 Oct 2026
- property_comparablessold-evidence family (implied value + £/sqft): 10 comps, dispersion 22.9%· as of 21 Oct 2026
Rental economics8/40
gross yield 6.2%; range width penalty ×0.87
- valuation_snapshotsrent estimate 3000/mo (range 2750-3250)· as of 9 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -570/mo, -19% of rent (6.75% on a 75% loan; disclosed service charge and ground rent); fails the stress - earns nothing
- listing_factsservice charge / ground rent from the advert· as of 30 Oct 2026
Seller motivationNot scored
context, not scored: 1 price cut(s), 197 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 & liquidity12.8/15
264 sales/12mo in area; valuation range width 20%
- 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 sensitivity

£439,000£673,000

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£585,000

At the asking price

Monthly rent£3,000/mo

Evidenced range £2,750-£3,250

Interest rate5.4%

Loan to value75%

Cash required: £196,050
Net cash flow: £103/mo
Cash on cash: 0.6%
Score at this price: 22

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.52 - 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 10096039715Valuation edge · as of 9 Oct 2026
property_comparablessold-evidence family (implied value + £/sqft): 10 comps, dispersion 22.9%Valuation edge · as of 21 Oct 2026
valuation_snapshotsrent estimate 3000/mo (range 2750-3250)Rental economics · as of 9 Oct 2026 · verify before relying on this
listing_factsservice charge / ground rent from the advertStress margin · as of 30 Oct 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 30 Oct 2026

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 3000/mo (range 2750-3250)
Seller motivation could not be scored
context, not scored: 1 price cut(s), 197 days on market; homes with a cut sold 0.2-0.3pp further below the cut ask, which is not an edge

Property risk deep-dive →

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. 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. 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.
4. Commission a full structural survey, not a basic condition report.
The score prices market evidence, not the fabric of the building.

Valuation & Market

Sale Estimate£631,000

Rent Estimate (pcm)£3,000

Gross Yield6.15%

1y Growth-15.7%

3y Growth-0.6%

5y Growth-0.4%

10y Growth+1.6%

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

0SE26 6SQ

Approval Rate

-12mo

Development

low

26/AP/3230
Alterations to a detached house: Replacement timber windows throughout, replacement of the existing pitched roof to the entrance lobby with a flat roof and entrance canopy. Conversion of the existing garage into a habitable room, including replacement of the garage door with new windows and a timber screen and new rear doors with steps to the garden. Timber screen to replacement north window. Reconfiguration of the driveway and entrance patio to provide level parking and improved access to the house. Raising of the main garden terrace to align with the internal floor level. New windows to the existing brick sheds below the main terrace New timber pergola to the south terrace. New planted screening along the southern boundary. Replacement of the existing window to the south elevation with a garden door and steps to the lawn
Pending
26/AP/3184
5 day notification: Consent to allow us to purely remove deadwood from the front garden Oak Tree (T1).
Pending
26/AP/3134
T1 5m Conifer covered in Ivy possibly dead - Fell to ground level T2 8m Conifer lightly trim foliage over pavement and side path T3 8m Magnolia Reduce the height of the tree by 1m to leave a 7m tree and reduce a 4m spread by 1m on all compass points T4 4m Holly tree rubbing on the rear fence arris rail - Fell to ground level
Pending

View Planning Timeline

Ownership

Corporate Ownership62.1%
Overseas OwnershipNo
Lease Term Remaining-
CovenantsNone
Lease Type-
Last Ownership Change-
SourceLand Registry

View Ownership Details

Connectivity

Broadband (-)

Mobile 4G/5G Coverage

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£43,006

Population Density2,068 /km²

Owner Occupied61%

Age Distribution

0-15 21%16-64 65%65+ 14%

View Area Profile

Schools Nearby

Dulwich Wood Nursery School
0.3 mi
Report card2026
Ofsted no longer awards a single overall grade.
Dulwich Wood Primary School
0.4 mi
Good
Paxton Primary School
0.5 mi
Good
Kingsdale Foundation School
0.5 mi
Outstanding

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

View All Schools

Comparables

View All

9 Sydenham Hill
-
£630k
-
9 Sydenham Hill
-
£603k
-
9 Sydenham Hill
-
£903k
-
9 Sydenham Hill
-
£740k
-

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