21 Trinity Crescent, London, SW17 7AG

UPRN:10090501297Semi-Detached House8 bedsBuilt before 1900

FreeholdCouncil Tax: Band GEPC: E (50)

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

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

£3,840,000

£3.46M - £4.22MMedium

Estimate

£3.84M

Range

£3.46M – £4.22M

Rent Estimate (pcm)

£14,900

£14k - £16k

Monthly

£14,900

Yield

27.51%

Verdict

Derived from HomePortfolio scores

21 Trinity Crescent earns an INVESTIGATE rating with HP Score 76/100. Investment score 63/100 reflects moderate fundamentals. Crime intensity is moderate. Walkability is excellent (92/100). 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 NationsMarket 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 leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

76/ 100

Strong

Investment Score

63/ 100

Moderate

Crime Score

38/ 100

Elevated

Walkability

92/ 100

Excellent

Transit & Bike

Transit 53Bike 68

Walk Score, out of 100

Opportunity

Not scored as an opportunity

We will not put a number on this one.

listing is a flat but the valuation basis is the whole house at this UPRN - value evidence is not comparable

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£650,000

At the asking price

Monthly rent£14,900/mo

Evidenced range £13,550-£16,300

Interest rate5.4%

Loan to value75%

Cash required: £218,800
Net cash flow: £8,122/mo
Cash on cash: 44.5%
Score at this price: -

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 6.79 - clears 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£3,840,000

Rent Estimate (pcm)£14,900

Gross Yield27.51%

1y Growth-

3y Growth+0.3%

5y Growth+0.2%

10y Growth+0.8%

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

5SW17 7AG

Approval Rate

100%12mo

Development

low

PA2026/0877
T1 - Liquid Amber Fell as close to ground level as possible. Apply systemic herbicide to stump to prevent re-growth. T2 - Magnolia Sever ivy and reduce back from footpath by up to 1.5 metres of branch length Rear Garden T3 - Black Poplar Remove major deadwood and snapped branch stus. T4 - Yew Remove epicormic growth to crown break and remove 1.5 metres of branch length over patio T5 - Acacia Remove 1.56 metres of lowest branch on left side of the tree. • To allow retention of the tree within the available space for growth • The works will encourage a well-balanced crown for future years • Its proximity to the property is casing anxiety and apprehension to the occupier It is a large dominant tree in close proximity to the property.
Pending
PA2026/0863
TPO 150/1994 T55 [ON APP AS T1]- Large London plane tree - repollard back to previous points.
Decision level tpo
PA2026/0771
Erection of single-storey rear extension to extend beyond the rear wall of the existing dwellinghouse by 4.11m, the total height of the proposed extension is 3m and the height of the eaves is 3m.
Pending

View Planning Timeline

Ownership

Corporate Ownership64.9%
Overseas OwnershipNo
Lease Term Remaining-
CovenantsRestrictive
Lease TypeFreehold
Last Ownership Change-
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

17 Mbps

Mobile 4G/5G Coverage

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£49,310

Population Density12,272 /km²

Owner Occupied40%

Age Distribution

0-15 12%16-64 79%65+ 9%

View Area Profile

Schools Nearby

Fircroft Primary School
0.2 mi
Inspected as Fircroft Primary School (URN 101007) on 22 Oct 2024
Finton House School
0.2 mi
Inspected by ISI
Ernest Bevin Academy
0.3 mi
Report card2026
Ofsted no longer awards a single overall grade.
St Anselm's Catholic Primary School
0.3 mi
Outstanding

4 of 8 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

View All Schools

Comparables

View All

29 Trinity Crescent
-
£443k
-
27C Trinity Crescent
-
£430k
-
29 Trinity Crescent
-
£368k
-
27B Trinity Crescent
-
£400k
-

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