277 Knella Road, Welwyn Garden City, AL7 3NS

UPRN:100080979082Semi-Detached House2 bedsBuilt 1976-1982

FreeholdCouncil Tax: Band CEPC: C (69)

Data freshness:Listing· freshPrice Paid· freshPlanning· 4mo agoEPC· 3mo agoRisk· 5mo agoConnectivity· 1mo agoSchools· 1mo agoAmenities· 2mo agoArea· Census 2021

277 Knella Road, Welwyn Garden City, AL7 3NS

HP Score

/ 100

Mixed

Verdict

2 days ago

Verdict: INVESTIGATE, on a scale of Buy, Investigate, Avoid.
Mixed signals - investigate

Evidence

20 of 21 sources

Sale Estimate

£416,000

£395k - £437kHigh

Estimate

£416k

Range

£395k – £437k

Rent Estimate (pcm)

£1,650

£2k - £2k

Monthly

£1,650

Yield

4.77%

Verdict

Derived from HomePortfolio scores

277 Knella Road earns an INVESTIGATE rating with HP Score 74/100. Investment score 65/100 reflects moderate fundamentals. Crime intensity is moderate. Walkability is good (72/100). 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 company ownershipHM Land Registry covenantsHM Land Registry leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

74/ 100

Mixed

Investment Score

65/ 100

Moderate

Crime Score

36/ 100

Elevated

Walkability

72/ 100

High

Transit & Bike

Transit 16Bike 60

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£415,000

At the asking price

Monthly rent£1,650/mo

Evidenced range £1,550-£1,800

Interest rate5.4%

Loan to value75%

Cash required: £136,550
Net cash flow: -£258/mo
Cash on cash: -2.3%
Score at this price: -

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.18 - 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£416,000

Rent Estimate (pcm)£1,650

Gross Yield4.77%

1y Growth-

3y Growth+0.8%

5y Growth+2.5%

10y Growth+2.0%

Last Sold Price£295,000 (2015-07-14)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceModerate
RadonLow
MiningModerate
LandslideLow
Air QualityLow
NoiseModerate

View Full Risk Report

Planning Activity

Recent Apps

0AL7 3NS

Approval Rate

-12mo

Development

low

6/2026/1901/FULL
Subdivision of existing residential garden, erection of one dwelling adjoining the existing dwelling and associated hard and soft landscaping.
Pending
6/2026/1855/EMT
Reduce Hornbeam approx 6ft to previous cut points in 2022
Pending
6/2026/1832/TC
T1 - Silver birch dead/ dieing fell to ground level T2 - Silver birch dead/ dieing fell to ground level T3 - Silver birch dead/ dieing fell to ground level All three trees are at the main entrance to the school, with high foot traffic due to proximity to main recption
Rejected

View Planning Timeline

Ownership

Corporate Ownership40.5%
Overseas OwnershipNo
Lease Term Remaining-
CovenantsRestrictive
Lease TypeFreehold
Last Ownership Change2015-07-14
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

9 Mbps

Mobile 4G/5G Coverage

EEThreeO2Vodafone

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£37,805

Population Density4,513 /km²

Owner Occupied55%

Age Distribution

0-15 23%16-64 64%65+ 13%

View Area Profile

Schools Nearby

Swallow Dell Primary and Nursery School
0.1 mi
Area grades2025
Inspected after Ofsted withdrew the single overall grade.
Panshanger Primary School
0.4 mi
Good
Ridgeway Academy
0.4 mi
Area grades2025
Inspected after Ofsted withdrew the single overall grade.
Watchlytes Primary School
0.4 mi
Report card2025
Ofsted no longer awards a single overall grade.

2 of 13 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

View All Schools

Comparables

View All

269 Knella Road
-
£350k
-
273 Knella Road
-
£383k
-
219 Knella Road
-
£439k
-
265A Knella Road
-
£445k
-

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