Flat G, 21 Mare Street, London, E8 4RP

UPRN:10008337573Flat/Maisonette2 bedsBuilt -

Tenure: -Council Tax: Band DEPC: B (81)

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

HP Score

/ 100

Mixed

Verdict

2 days ago

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

Evidence

17 of 21 sources

Sale Estimate

£553,000

£443k - £664kLow

Estimate

£553k

Range

£443k – £664k

Rent Estimate (pcm)

£2,400

£2k - £3k

Monthly

£2,400

Yield

6.40%

Verdict

Derived from HomePortfolio scores

Flat G earns an INVESTIGATE rating with HP Score 65/100. Investment score 71/100 reflects strong fundamentals. Crime intensity is elevated. Walkability is excellent (97/100). 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 listingsMarket 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

65/ 100

Mixed

Investment Score

71/ 100

High

Crime Score

99/ 100

Elevated

Walkability

97/ 100

Excellent

Transit & Bike

Transit 76Bike 87

Walk Score, out of 100

Opportunity

Not scored as an opportunity

We will not put a number on this one.

headline score requires valuation_edge (estimate confidence LOW below scoring floor)

What we could establish

Rental economics9.2/40
gross yield 6.4%; range width penalty ×0.82; the estimate this rent rides on sits 19% above the ask - check the rent describes the advertised home
- valuation_snapshotsrent estimate 2400/mo (range 2200-2650)· as of 12 Oct 2026· verify before relying on this
- valuation_snapshotssale estimate 19% above the ask on the same snapshot - verify the rent describes this home· as of 12 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -808/mo, -34% of rent (6.75% on a 75% loan; disclosed service charge and ground rent); fails the stress - earns nothing
- listing_factsservice charge / ground rent from the advert· as of 10 Nov 2026
Risk & liquidity9.2/15
256 sales/12mo in area; valuation range width 40%
- property_intelligencetransactions_12mo

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£450,000

At the asking price

Monthly rent£2,400/mo

Evidenced range £2,200-£2,650

Interest rate5.4%

Loan to value75%

Cash required: £148,800
Net cash flow: £143/mo
Cash on cash: 1.2%
Score at this price: -

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.58 - 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_snapshotsrent estimate 2400/mo (range 2200-2650)Rental economics · as of 12 Oct 2026 · verify before relying on this
valuation_snapshotssale estimate 19% above the ask on the same snapshot - verify the rent describes this homeRental economics · as of 12 Oct 2026 · verify before relying on this
listing_factsservice charge / ground rent from the advertStress margin · as of 10 Nov 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 10 Nov 2026
property_intelligencetransactions_12moRisk & liquidity

Risks

What could kill this deal

Score confidence is low
largely a single source - treat the number as a prompt, not a conclusion
Valuation edge could not be scored
estimate confidence LOW below scoring floor
Rental economics needs verification before you rely on it
rent estimate 2400/mo (range 2200-2650)

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.
3 price cut(s) recorded on the listing history.
3. Fill the valuation edge gap before relying on the score.
estimate confidence LOW below scoring floor
4. 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£553,000

Rent Estimate (pcm)£2,400

Gross Yield6.40%

1y Growth-

3y Growth-1.6%

5y Growth+0.2%

10y Growth+0.9%

Last Sold Price-

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningUnknown
LandslideLow
Air QualityLow
NoiseHigh

View Full Risk Report

Planning Activity

Recent Apps

0E8 4RP

Approval Rate

-12mo

Development

low

PA/26/01863/NC
Replacement of all existing timber windows with new timber windows and existing timber rear doors with new timber doors.
Pending
PA/26/01854/S
Submission of details pursuant to condition no.38 Part G (Water efficiency calculator) in relation to Phase 1 covers Blocks A and B of planning permission ref: PA/24/00184, dated 23/01/2025
Pending
PA/26/01852/NC
Application for prior approval under Schedule 2, Part 3, Class MA of the Town and Country Planning (General Permitted Development) (England) Order 2015 for the change of use of a workshop unit (Use Class E) to a self-contained 1-bedroom, 1 person dwelling (Use Class C3) of approximately 49.2sqm.
Pending

View Planning Timeline

Ownership

Corporate Ownership55.9%
Overseas OwnershipNo
Lease Term Remaining-
CovenantsRestrictive
Lease Type-
Last Ownership Change-
SourceLand Registry

View Ownership Details

Connectivity

Broadband (-)

Mobile 4G/5G Coverage

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£40,237

Population Density10,703 /km²

Owner Occupied26%

Age Distribution

0-15 11%16-64 87%65+ 2%

View Area Profile

Schools Nearby

London Fields Primary School
0.1 mi
Area grades2025
Inspected after Ofsted withdrew the single overall grade.
Mowlem Primary School
0.2 mi
Outstanding
St. Paul's With St. Michael's CofE Primary School
0.3 mi
Outstanding
Sebright School
0.3 mi
-

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

View All Schools

Comparables

View All

17 - 19 Mare Street
-
£140k
-
17 - 19 Mare Street
-
£125k
-
17 - 19 Mare Street
-
£76k
-
21 Mare Street
-
£249k
-

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