228 Sherwood Park Avenue, Sidcup, DA15 9JL

UPRN:100020260784-Beds -Built -

Tenure: -Council Tax: Band DEPC: D (65)

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

228 Sherwood Park Avenue, Sidcup, DA15 9JL

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

£447,000

£402k - £492kMedium

Estimate

£447k

Range

£402k – £492k

Rent Estimate (pcm)

-- - --

Verdict

Derived from HomePortfolio scores

228 Sherwood Park Avenue earns an INVESTIGATE rating with HP Score 77/100. Investment score 57/100 reflects moderate fundamentals. Crime intensity is low. Walkability is good (71/100). 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

77/ 100

Strong

Investment Score

57/ 100

Moderate

Crime Score

16/ 100

Moderate

Walkability

71/ 100

High

Transit & Bike

Transit 28Bike 49

Walk Score, out of 100

Opportunity

Not scored as an opportunity

We will not put a number on this one.

headline score requires rental_economics (no rent estimate available)

What we could establish

Valuation edge-0.6/15
claims [AVM -23.0% (MEDIUM)] → measured edge -0.12pp of the ask; on later-registered sales an AVM discount carried no edge and a sold-evidence gap at most +0.5pp; asking more than 10% above the estimate (measured -0.33pp)
Market estimate used (MEDIUM confidence) · snapshot 12 Oct 2026
- valuation_snapshotsestimate for 100020260784· as of 12 Oct 2026
Risk & liquidity12.8/15
253 sales/12mo in area; valuation range width 20%
- 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

valuation_snapshotsestimate for 100020260784Valuation edge · as of 12 Oct 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 9 Nov 2026
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
Rental economics could not be scored
no rent estimate available
Stress margin could not be scored
no rent to stress

Plan

Before you offer

1. Fill the rental economics gap before relying on the score.
no rent estimate available
2. Fill the stress margin gap before relying on the score.
no rent to stress
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£447,000

Rent Estimate (pcm)-

Gross Yield-

1y Growth-15.7%

3y Growth+0.6%

5y Growth+1.8%

10y Growth+2.6%

Last Sold Price-

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningModerate
LandslideModerate
Air QualityLow
NoiseModerate

View Full Risk Report

Planning Activity

Recent Apps

0DA15 9JL

Approval Rate

-12mo

Development

low

26/02058/FUL
Conversion of the existing property to provide a 2 storey dwellinghouse and a first floor flat involving the erection of first floor side extension, external spiral staricase, alterations to existing fenestrations and subdivision of rear garden. Creation of parking to front, EV charging and refuse and cycle storage.
Pending
26/02033/FUL
Erection of a part one, part two storey side / rear extension following demolition of existing conservatory.
Pending
25/01592/FUL01
Application to approve details of condition 4 (Parking Facilities) and 6 (Sustainability) pursuant to application 25/01592/FUL for Change of Use of existing integral garage to Studio Flat (Class C3) along with associated refuse and cycle storage.
Pending

View Planning Timeline

Ownership

Corporate Ownership64%
Overseas OwnershipNo
Lease Term Remaining-
CovenantsRestrictive
Lease Type-
Last Ownership Change-
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

4 Mbps

Mobile 4G/5G Coverage

EEThreeO2Vodafone

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£36,883

Population Density-

Owner Occupied88%

Age Distribution

0-15 20%16-64 61%65+ 19%

View Area Profile

Schools Nearby

Blackfen School for Girls
0.1 mi
Area grades2025
Inspected after Ofsted withdrew the single overall grade.
Sherwood Park Primary School
0.1 mi
Good
Hurstmere School
0.6 mi
Inspected as Hurstmere School (URN 137368) on 27 Sep 2022
Marlborough School
0.6 mi
-

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

View All Schools

Comparables

View All

198 Sherwood Park Avenue
-
£410k
-
176 Sherwood Park Avenue
-
£430k
-
240 Sherwood Park Avenue
-
£500k
-
214 Sherwood Park Avenue
-
£340k
-

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