12 Tremlett Building, Tewkesbury Road, London, W13 0FS

UPRN:12191020Purpose Built Flat2 bedsBuilt -

Tenure: -Council Tax: Band DEPC: B (85)

Data freshness:Listing· freshPrice Paid· freshPlanning· 4mo agoEPC· 6mo agoRisk· 5mo agoConnectivity· 1mo agoSchools· 1mo agoAmenities· 2mo agoArea· Census 2021

12 Tremlett Building, Tewkesbury Road, London, W13 0FS

HP Score

/ 100

Strong

Verdict

2 days ago

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

Evidence

17 of 21 sources

Sale Estimate

£541,000

£487k - £595kMedium

Estimate

£541k

Range

£487k – £595k

Rent Estimate (pcm)

£2,100

£2k - £2k

Monthly

£2,100

Yield

5.60%

Verdict

Derived from HomePortfolio scores

12 Tremlett Building earns an INVESTIGATE rating with HP Score 75/100. Investment score 81/100 reflects strong fundamentals. Crime intensity is moderate. Walkability is excellent (93/100). 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 leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

75/ 100

Strong

Investment Score

81/ 100

High

Crime Score

55/ 100

Elevated

Walkability

93/ 100

Excellent

Transit & Bike

Transit 55Bike 75

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence0 independent sourcesLead to verifyListing checked 5 Nov 2026

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

Check before relying on this score: the estimate sits 17% above the ask; lead to verify: leasehold with no service charge disclosed - the stress test assumes GBP 0. It ranks after every home whose inputs are verified.

Valuation edge0/15
claims [AVM +16.8% (MEDIUM)] → 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 13 Oct 2026
- valuation_snapshotsestimate for 12191020· as of 13 Oct 2026
Rental economics3.9/40
gross yield 5.6%; range width penalty ×0.82; the estimate this rent rides on sits 17% above the ask - check the rent describes the advertised home
- valuation_snapshotsrent estimate 2100/mo (range 1900-2300)· as of 13 Oct 2026· verify before relying on this
- valuation_snapshotssale estimate 17% above the ask on the same snapshot - verify the rent describes this home· as of 13 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -485/mo, -23% of rent (6.75% on a 75% loan; no service charge or ground rent disclosed); fails the stress - earns nothing; leasehold with no service charge disclosed - the stress assumes GBP 0
- underwriting_assumptionscosts not disclosed by the advert· as of 5 Nov 2026· verify before relying on this
Seller motivationNot scored
context, not scored: 1 price cut(s), 47 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 & liquidity12.8/15
248 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

£337,500£517,500

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£450,000

At the asking price

Monthly rent£2,100/mo

Evidenced range £1,900-£2,300

Interest rate5.4%

Loan to value75%

Cash required: £148,800
Net cash flow: -£65/mo
Cash on cash: -0.5%
Score at this price: 17

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.38 - clears 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 12191020Valuation edge · as of 13 Oct 2026
valuation_snapshotsrent estimate 2100/mo (range 1900-2300)Rental economics · as of 13 Oct 2026 · verify before relying on this
valuation_snapshotssale estimate 17% above the ask on the same snapshot - verify the rent describes this homeRental economics · as of 13 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 5 Nov 2026 · verify before relying on this
portal_listingsprice_changes + first_published_date

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 2100/mo (range 1900-2300)
Rental economics needs verification before you rely on it
sale estimate 17% above the ask on the same snapshot - verify the rent describes this home

Plan

Before you offer

1. Get two written rental appraisals from local lettings agents.
The market estimate this rent rides on sits far above the asking price, so the rent may describe a different home.
2. Ask the agent why the price was reduced and whether a previous sale fell through.
1 price cut(s) recorded on the listing history.
3. Treat the gap to the estimate as unproven - compare recent sold prices on the street yourself before pricing an offer around it.
On later completions, homes listed below their estimate sold at the same share of the asking price as the rest.
4. Commission a full structural survey, not a basic condition report.
The score prices market evidence, not the fabric of the building.

Valuation & Market

Sale Estimate£541,000

Rent Estimate (pcm)£2,100

Gross Yield5.60%

1y Growth-

3y Growth-2.8%

5y Growth+0.6%

10y Growth+1.4%

Last Sold Price-

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningUnknown
LandslideLow
Air QualityLow
NoiseLow

View Full Risk Report

Planning Activity

Recent Apps

0W13 0FS

Approval Rate

-12mo

Development

low

263847PTC
T1 -T2 Fell to near ground level 2x pine trees growing in close proximity to the adjacent buildings
Approved
263806PALHE
Single storey (Max 5m deep and Max 3m high) rear extension (42 days Prior Notification Process)
Pending
263767NMA
Application for a Non-Material Amendment in (S96a) seeking to allow to amend the description in relation to planning permission reference 254723FUL dated 26/06/2026 for: Demolition of existing building and erection of a 6-storey mixed-use building comprising of commercial (Class E) accommodation at ground floor and HMO (Sui Generis) accommodation (129 HMO rooms) at ground and upper floors with associated communal areas
Pending

View Planning Timeline