12 Firway Close, Welwyn, AL6 0RE

UPRN:100080988787Detached House4 bedsBuilt 1983-1990

FreeholdCouncil Tax: Band FEPC: C (72)

Data freshness:Listing· freshPlanning· 6mo agoOwnership· freshEPC· 3mo agoRisk· 5mo agoConnectivity· 1mo agoSchools· 1mo agoAmenities· 2mo agoArea· Census 2021Council Tax· 4mo ago

HP Score

/ 100

Mixed

Verdict

yesterday

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

Evidence

18 of 21 sources

Sale Estimate

£892,000

£803k - £982kMedium

Estimate

£892k

Range

£803k – £982k

Rent Estimate (pcm)

£2,800

£2k - £3k

Monthly

£2,800

Yield

3.45%

Verdict

Derived from HomePortfolio scores

12 Firway Close earns an INVESTIGATE rating with HP Score 70/100. Investment score 57/100 reflects moderate fundamentals. Crime intensity is very low. Walkability is limited (27/100). 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)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 company ownershipHM Land Registry covenantsHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

70/ 100

Mixed

Investment Score

57/ 100

Moderate

Crime Score

8/ 100

Low

Walkability

27/ 100

Low

Transit & Bike

Transit 5Bike 27

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence0 independent sourcesListing checked 11 Nov 2026

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

Valuation edge0/15
claims [AVM -9.3% (MEDIUM), sold-comps -50.5%, £/sqft -50.5%] → measured edge +0.00pp 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 11 Nov 2026
- valuation_snapshotsestimate for 100080988787· as of 11 Nov 2026
- property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 21.7%· as of 30 Oct 2026
Rental economics0/40
gross yield 3.4%; range width penalty ×0.70
- valuation_snapshotsrent estimate 2800/mo (range 2450-3150)· as of 11 Nov 2026· verify before relying on this
Stress margin0/30
stressed cash flow -2,185/mo, -78% 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 11 Nov 2026
Seller motivationNot scored
context, not scored: 0 price cut(s), 69 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 11 Nov 2026
Risk & liquidity12.8/15
98 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

£731,000£1,121,000

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£975,000

At the asking price

Monthly rent£2,800/mo

Evidenced range £2,450-£3,150

Interest rate5.4%

Loan to value75%

Cash required: £335,050
Net cash flow: -£1,352/mo
Cash on cash: -4.8%
Score at this price: 13

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 0.85 - below 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 100080988787Valuation edge · as of 11 Nov 2026
property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 21.7%Valuation edge · as of 30 Oct 2026
valuation_snapshotsrent estimate 2800/mo (range 2450-3150)Rental economics · as of 11 Nov 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 11 Nov 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 11 Nov 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 2800/mo (range 2450-3150)
Seller motivation could not be scored
context, not scored: 0 price cut(s), 69 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. 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£892,000

Rent Estimate (pcm)£2,800

Gross Yield3.45%

1y Growth-

3y Growth-1.8%

5y Growth+0.4%

10y Growth+1.4%

Last Sold Price-

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceModerate
RadonLow
MiningLow
LandslideLow
Air QualityLow
NoiseLow

View Full Risk Report

Planning Activity

Recent Apps

1AL6 0RE

Approval Rate

100%12mo

Development

low

6/2026/1984/TPO
2x oak trees to reduce by 30% with all works undertaken in accordance with BS3998
Pending
6/2026/1908/TPO
Triple Stem Hornbeam in rear garden, reduce and thin crown by 20-25% TPO 639 (2017)
Pending
6/2026/1878/COND
Submission of details pursuant to condition 9 (Noise Management Plan) and condition 11 (Access Arrangements) on planning permission 6/2026/0025/VAR
Pending

View Planning Timeline