23 Windmill Street, Brighton, BN2 0GN

UPRN:22064797TerracedBeds -Built before 1900

FreeholdCouncil Tax: Band CEPC: C (69)

Data freshness:Listing· freshPrice Paid· freshPlanning· 8mo agoEPC· 1mo agoRisk· 5mo agoConnectivity· 1mo agoAmenities· 1mo agoArea· Census 2021Council Tax· 6mo ago

HP Score

/ 100

Strong

Verdict

2 days ago

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

Evidence

20 of 21 sources

Sale Estimate

£551,000

£524k - £579kHigh

Estimate

£551k

Range

£524k – £579k

Rent Estimate (pcm)

£3,000

£3k - £3k

Monthly

£3,000

Yield

7.58%

Verdict

Derived from HomePortfolio scores

23 Windmill Street earns an INVESTIGATE rating with HP Score 81/100. Investment score 64/100 reflects moderate fundamentals. Crime intensity is low. Walkability is excellent (96/100). 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 company ownershipHM Land Registry covenantsHM Land Registry leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

81/ 100

Strong

Investment Score

64/ 100

Moderate

Crime Score

17/ 100

Moderate

Walkability

96/ 100

Excellent

Transit & Bike

Transit 41Bike 71

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Reduced confidence2 independent sourcesListing checked 2 Nov 2026

Fewer independent sources agree, or a component could not be scored.

Valuation edge0/15
claims [AVM +13.8% (HIGH)] → 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 (HIGH confidence) · snapshot 12 Oct 2026
- valuation_snapshotsestimate for 22064797· as of 12 Oct 2026
Rental economics18.6/40
gross yield 7.6%; range width penalty ×0.90
- valuation_snapshotsrent estimate 3000/mo (range 2750-3200)· as of 12 Oct 2026· verify before relying on this
Stress margin2.4/30
stressed cash flow +71/mo, +2% of rent (6.75% on a 75% loan; no service charge or ground rent disclosed); passes the stress
- underwriting_assumptionscosts not disclosed by the advert· as of 2 Nov 2026
Seller motivationNot scored
context, not scored: 0 price cut(s), 37 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 2 Nov 2026
Risk & liquidity14.6/15
852 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 sensitivityScores 70+ up to £356,000

£356,000£546,000

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£475,000

At the asking price

Monthly rent£3,000/mo

Evidenced range £2,750-£3,200

Interest rate5.4%

Loan to value75%

Cash required: £157,550
Net cash flow: £474/mo
Cash on cash: 3.6%
Score at this price: 36

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.87 - 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 22064797Valuation edge · as of 12 Oct 2026
valuation_snapshotsrent estimate 3000/mo (range 2750-3200)Rental economics · as of 12 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 2 Nov 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 2 Nov 2026
property_intelligencetransactions_12moRisk & liquidity

Sold comparables in depth

Risks

What could kill this deal

Score confidence is reduced
fewer independent sources agree, or a component could not be scored
Rental economics needs verification before you rely on it
rent estimate 3000/mo (range 2750-3200)
Seller motivation could not be scored
context, not scored: 0 price cut(s), 37 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. Set your walk-away price before viewing - above £356,000 the deal stops scoring well.
Computed by re-running the score at higher prices.
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£551,000

Rent Estimate (pcm)£3,000

Gross Yield7.58%

1y Growth+14.5%

3y Growth+0.6%

5y Growth+0.8%

10y Growth+2.3%

Last Sold Price£215,000 (2003-07-11)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceModerate
RadonModerate
MiningLow
LandslideLow
Air QualityLow
NoiseLow

View Full Risk Report

Planning Activity

Recent Apps

0BN2 0GN

Approval Rate

-12mo

Development

low

BH2026/00460
To install telecommunications apparatus.
Pending
BH2026/00356
Prior approval for change of use from commercial, business and service (E) to form 1no self-contained flat (C3).
Pending
BH2026/00327
Internal alterations to relocate kitchen.
Pending

View Planning Timeline

Ownership

Corporate Ownership62.7%
Overseas OwnershipNo
Lease Term Remaining-
CovenantsRestrictive
Lease TypeFreehold
Last Ownership Change2003-07-11
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

17 Mbps

Mobile 4G/5G Coverage

EEThreeO2Vodafone

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£33,506

Population Density-

Owner Occupied47%

Age Distribution

0-15 17%16-64 73%65+ 10%

View Area Profile

Schools Nearby

Tarnerland Nursery School
0.1 mi
Report card2026
Ofsted no longer awards a single overall grade.
Carlton Hill Primary School
0.1 mi
Good
Royal Spa Nursery School
0.2 mi
Outstanding
Queen's Park Primary School
0.3 mi
Report card2026
Ofsted no longer awards a single overall grade.

3 of 7 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

View All Schools

Comparables

View All

11 Windmill Street
-
£498k
-
13 Windmill Street
-
£250k
-
18 Windmill Street
-
£498k
-
32 Windmill Street
-
£556k
-

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