14 Grennell Close, Sutton, SM1 3LU

UPRN:5870052202Semi-Detached House4 bedsBuilt 1930-1949

FreeholdCouncil Tax: Band DEPC: D (64)

Data freshness:Listing· freshPrice Paid· freshPlanning· 4mo agoOwnership· freshRisk· 5mo agoConnectivity· 1mo agoSchools· 4mo agoAmenities· 2mo agoArea· Census 2021

HP Score

/ 100

Strong

Verdict

yesterday

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

Evidence

18 of 21 sources

Sale Estimate

£625,000

£594k - £657kHigh

Estimate

£625k

Range

£594k – £657k

Rent Estimate (pcm)

£2,800

£3k - £3k

Monthly

£2,800

Yield

4.80%

Verdict

Derived from HomePortfolio scores

14 Grennell Close earns an INVESTIGATE rating with HP Score 79/100. Investment score 62/100 reflects moderate fundamentals. Crime intensity is very low. Walkability is good (70/100). 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

79/ 100

Strong

Investment Score

62/ 100

Moderate

Crime Score

9/ 100

Low

Walkability

70/ 100

High

Transit & Bike

Transit 21Bike 48

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence0 independent sourcesListing checked 5 Nov 2026

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

Valuation edge-1.6/15
claims [AVM -12.0% (HIGH), sold-comps -11.3%, £/sqft -11.3%] → measured edge -0.33pp 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 (HIGH confidence) · snapshot 9 Oct 2026
- valuation_snapshotsestimate for 5870052202· as of 9 Oct 2026
- property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 11.9%· as of 5 Nov 2026
Rental economics0/40
gross yield 4.8%; range width penalty ×0.88
- valuation_snapshotsrent estimate 2800/mo (range 2550-3000)· as of 9 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -1,025/mo, -37% 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 5 Nov 2026
Seller motivationNot scored
context, not scored: 0 price cut(s), 48 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 5 Nov 2026
Risk & liquidity14.6/15
358 sales/12mo in area; valuation range width 10%
- 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

£525,000£805,000

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£700,000

At the asking price

Monthly rent£2,800/mo

Evidenced range £2,550-£3,000

Interest rate5.4%

Loan to value75%

Cash required: £236,300
Net cash flow: -£424/mo
Cash on cash: -2.2%
Score at this price: 13

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.19 - 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 5870052202Valuation edge · as of 9 Oct 2026
property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 11.9%Valuation edge · as of 5 Nov 2026
valuation_snapshotsrent estimate 2800/mo (range 2550-3000)Rental economics · as of 9 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 5 Nov 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 5 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 2550-3000)
Seller motivation could not be scored
context, not scored: 0 price cut(s), 48 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£625,000

Rent Estimate (pcm)£2,800

Gross Yield4.80%

1y Growth-

3y Growth-0.4%

5y Growth+0.8%

10y Growth+2.4%

Last Sold Price£490,000 (2017-04-26)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningModerate
LandslideLow
Air QualityLow
NoiseLow

View Full Risk Report

Planning Activity

Recent Apps

0SM1 3LU

Approval Rate

-12mo

Development

low

DM2026/01249
Erection of a single storey rear extension and provision of a raised rear/flank veranda.
Pending
DM2026/01222
Prior Approval for a single storey rear extension projecting from the rear of the original house by 4m.
Pending
DM2026/01212
Erection of a single storey rear extension, partial conversion of the garage to a habitable room with associated external works.
Pending

View Planning Timeline

Ownership

Corporate Ownership57.2%
Overseas OwnershipNo
Lease Term Remaining-
CovenantsRestrictive
Lease TypeFreehold
Last Ownership Change2017-04-26
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

7 Mbps

Mobile 4G/5G Coverage

EEThreeO2Vodafone

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£38,359

Population Density-

Owner Occupied83%

Age Distribution

0-15 17%16-64 59%65+ 24%

View Area Profile

Schools Nearby

Greenshaw High School
0.1 mi
Area grades2024
Inspected after Ofsted withdrew the single overall grade.
All Saints Benhilton CofE Primary School
0.4 mi
-
Carshalton Boys Sports College
0.4 mi
Good
Rushy Meadow Primary Academy
0.5 mi
Good

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

View All Schools

Comparables

View All

12 Grennell Close
-
£626k
-
12 Grennell Close
-
£460k
-
6 Grennell Close
-
£450k
-
7 Grennell Close
-
£525k
-

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