70 Broom Grove, Knebworth, SG3 6BQ

UPRN:100080809379Semi-Detached House3 bedsBuilt 1967-1975

FreeholdCouncil Tax: Band DEPC: D (61)

Data freshness:Listing· freshPlanning· 4mo agoOwnership· freshEPC· 6mo agoRisk· 5mo agoCrime· freshConnectivity· 1mo agoSchools· 1mo agoAmenities· 2mo agoArea· Census 2021Council Tax· 1mo ago

HP Score

/ 100

Strong

Verdict

today

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

Evidence

18 of 21 sources

Sale Estimate

£468,000

£445k - £492kHigh

Estimate

£468k

Range

£445k – £492k

Rent Estimate (pcm)

£1,500

£1k - £2k

Monthly

£1,500

Yield

3.87%

Verdict

Derived from HomePortfolio scores

70 Broom Grove earns an INVESTIGATE rating with HP Score 77/100. Investment score 72/100 reflects strong fundamentals. Crime intensity is very low. Walkability is limited (47/100). Flood risk is not assessed: check the Environment Agency long-term flood map before offering. Tenure is freehold. 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)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 covenantsHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

77/ 100

Strong

Investment Score

72/ 100

High

Crime Score

13/ 100

Low

Walkability

47/ 100

Mixed

Transit & Bike

Transit 9Bike 36

Walk Score, out of 100

Opportunity

Not scored as an opportunity

We will not put a number on this one.

listing is 'Sold subject to contract' - sale already progressing, not an actionable opportunity

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£465,000

At the asking price

Monthly rent£1,500/mo

Evidenced range £1,350-£1,650

Interest rate5.4%

Loan to value75%

Cash required: £154,050
Net cash flow: -£531/mo
Cash on cash: -4.1%
Score at this price: -

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 0.96 - below the usual 1.25 test. These are your assumptions, not evidence: only the pre-filled rent and price come from the record.

Risks

What could kill this deal

Score confidence is low
largely a single source - treat the number as a prompt, not a conclusion

Property risk deep-dive →flood, subsidence, crime, environment - the full domain

Plan

Before you offer

1. 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£468,000

Rent Estimate (pcm)£1,500

Gross Yield3.87%

1y Growth-

3y Growth+2.0%

5y Growth-0.5%

10y Growth+1.8%

Last Sold Price£316,600 (2015-10-02)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceModerate
RadonLow
MiningLow
LandslideLow
Air QualityLow
NoiseLow

View Full Risk Report

Planning Activity

Recent Apps

0SG3 6BQ

Approval Rate

-12mo

Development

low

26/02638/TCA
T1: Eucalyptus - Fell
Pending
26/02350/FPH
Two storey side extension following demolition of existing porch. Insertion of front and rear dormer windows to facilitate conversion of loft space to habitable accommodation. Alterations to fenestration and external cladding.
Pending
26/02625/DOC
Details reserved by Condition 6 (Construction Method Statement) of Outline Planning permission reference 23/02946/OP granted on 18.06.2025.
Pending

View Planning Timeline

Ownership

Corporate Ownership56.5%
Overseas OwnershipNo
Lease Term Remaining-
CovenantsRestrictive
Lease TypeFreehold
Last Ownership Change2015-10-02
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

29 Mbps

Mobile 4G/5G Coverage

EEThreeO2Vodafone

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£42,703

Population Density-

Owner Occupied81%

Age Distribution

0-15 16%16-64 57%65+ 27%

View Area Profile

Schools Nearby

Knebworth Primary and Nursery School
0.5 mi
Good
St Michael's Woolmer Green CofE VA Primary School
1.1 mi
Good
All Saints Church of England Voluntary Aided Primary School, Datchworth
1.3 mi
Good
St Margaret Clitherow Roman Catholic Primary School
1.4 mi
Inspected as St Margaret Clitherow Roman Catholic Primary School (URN 117474) on 14 May 2024

3 of 11 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

View All Schools

Comparables

View All

36 Broom Grove
-
£345k
-
14 Broom Grove
-
£460k
-
42 Broom Grove
-
£350k
-
68 Broom Grove
-
£395k
-

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