Flat 17, Nightingale Mews, Calvert Street, Derby, DE1 2RT

UPRN:10010670832Terrace Property2 bedsBuilt 1900-1929

FreeholdCouncil Tax: -EPC: D (55)

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

Flat 17, Nightingale Mews, Calvert Street, Derby, DE1 2RT

HP Score

/ 100

Mixed

Verdict

today

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

Evidence

20 of 21 sources

Sale Estimate

£248,000

£236k - £260kHigh

Estimate

£248k

Range

£236k – £260k

Rent Estimate (pcm)

£1,250

£1k - £1k

Monthly

£1,250

Yield

6.12%

Verdict

Derived from HomePortfolio scores

Flat 17 earns an INVESTIGATE rating with HP Score 56/100. Investment score 62/100 reflects moderate fundamentals. Crime intensity is elevated. Walkability is good (83/100). 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

56/ 100

Mixed

Investment Score

62/ 100

Moderate

100

Crime Score

100/ 100

Elevated

Walkability

83/ 100

High

Transit & Bike

Transit 45Bike 69

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence1 independent sourceListing checked 9 Nov 2026

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

Valuation edge2.5/15
claims [AVM +1.2% (HIGH), sold-comps +10.6%, £/sqft +10.6%] → measured edge +0.50pp 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 10010670832· as of 12 Oct 2026
- property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 14.4%· as of 1 Nov 2026
Rental economics7.9/40
gross yield 6.1%; range width penalty ×0.88
- valuation_snapshotsrent estimate 1250/mo (range 1150-1350)· as of 12 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -245/mo, -20% 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 9 Nov 2026
Seller motivationNot scored
context, not scored: 1 price cut(s), unknown 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 9 Nov 2026
Risk & liquidity14.7/15
170 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

£184,000£282,000

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£245,000

At the asking price

Monthly rent£1,250/mo

Evidenced range £1,150-£1,350

Interest rate5.4%

Loan to value75%

Cash required: £77,200
Net cash flow: £39/mo
Cash on cash: 0.6%
Score at this price: 25

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.51 - 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 10010670832Valuation edge · as of 12 Oct 2026
property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 14.4%Valuation edge · as of 1 Nov 2026
valuation_snapshotsrent estimate 1250/mo (range 1150-1350)Rental economics · as of 12 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 9 Nov 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 9 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 1250/mo (range 1150-1350)
Seller motivation could not be scored
context, not scored: 1 price cut(s), unknown 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. 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£248,000

Rent Estimate (pcm)£1,250

Gross Yield6.12%

1y Growth-

3y Growth-1.9%

5y Growth-0.0%

10y Growth+2.0%

Last Sold Price£200,000 (2006-06-09)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceModerate
RadonLow
MiningUnknown
LandslideModerate
Air QualityLow
NoiseLow

View Full Risk Report

Planning Activity

Recent Apps

0DE1 2RT

Approval Rate

-12mo

Development

low

26/01392/CLE
Use of the property as five flats (Use Class C3)
Pending
26/01430/FUL
Change of use from a showroom (Sui Generis) to two commercial, business and service units (Use Class E), two flats (Use Class C3) and a seven bedroom (fourteen occupant) house in multiple occupation (Sui Generis) with external alterations to include installation of new shopfronts, new fenestration, doors, render and formation of a balcony
Pending
26/01417/DISC
Discharge of conditions 3 (Phase II Contamination) and 4 (Construction Management Plan) of previously approved application no. 25/01882/FUL - Two storey extension to college building including formation of hardstanding and new roof access
Pending

View Planning Timeline