21 St Crispin Drive, Northampton, NN5 4BL

UPRN:15112096Semi-Detached House3 bedsBuilt 2003-2006

FreeholdCouncil Tax: Band CEPC: C (72)

Data freshness:Price Paid· freshPlanning· 4mo agoEPC· 6mo agoRisk· 5mo agoConnectivity· 1mo agoSchools· freshAmenities· 2mo agoArea· Census 2021

21 St Crispin Drive, Northampton, NN5 4BL

HP Score

/ 100

Mixed

Verdict

yesterday

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

Evidence

20 of 21 sources

Sale Estimate

£299,000

£284k - £313kHigh

Estimate

£299k

Range

£284k – £313k

Rent Estimate (pcm)

£1,350

£1k - £2k

Monthly

£1,350

Yield

10.80%

Verdict

Derived from HomePortfolio scores

21 St Crispin Drive earns an INVESTIGATE rating with HP Score 71/100. Investment score 58/100 reflects moderate fundamentals. Crime intensity is low. Walkability is limited (55/100). 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

71/ 100

Mixed

Investment Score

58/ 100

Moderate

Crime Score

24/ 100

Moderate

Walkability

55/ 100

Moderate

Transit & Bike

Transit 19Bike 57

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£150,000

At the asking price

Monthly rent£1,350/mo

Evidenced range £1,250-£1,500

Interest rate5.4%

Loan to value75%

Cash required: £46,800
Net cash flow: £428/mo
Cash on cash: 11.0%
Score at this price: -

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 2.67 - 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£299,000

Rent Estimate (pcm)£1,350

Gross Yield10.80%

1y Growth+8.0%

3y Growth+2.4%

5y Growth+1.9%

10y Growth+3.3%

Last Sold Price£276,000 (2025-03-24)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceModerate
RadonModerate
MiningUnknown
LandslideLow
Air QualityLow
NoiseLow

View Full Risk Report

Planning Activity

Recent Apps

0NN5 4BL

Approval Rate

-12mo

Development

low

2026/4050/TPO
G1 Lime trees - Crown raise trees to 3m/first union, remove epicormic growth
Pending
2026/3831/HH
Increase in ridge height through reconstruction of the existing roof, incorporating a rear dormer to provide a habitable room within the roof space.
Pending
2026/3398/NMA
Non material amendment to amend proposal description to remove the primary school and the express reference to the number of units to planning permission N/2017/0091 (Residential development of up to 1,400 no. units, a mixed use local centre including appropriate retail, healthcare and community facilities, a new primary school, areas of public open space, play provision and structured landscaping, internal roads and all associated infrastructure, and demolition of existing shed at Upton Lodge Farm (outline planning application with matters of layout, appearance, landscaping and scale being reserved for subsequent approval))
Pending

View Planning Timeline

Ownership

Corporate Ownership69.7%
Overseas OwnershipNo
Lease Term Remaining-
CovenantsRestrictive
Lease TypeFreehold
Last Ownership Change2025-03-24
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

16 Mbps

Mobile 4G/5G Coverage

EEThreeO2Vodafone

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£33,059

Population Density857 /km²

Owner Occupied49%

Age Distribution

0-15 20%16-64 56%65+ 24%

View Area Profile

Schools Nearby

The Duston School
0.3 mi
Report card2026
Ofsted no longer awards a single overall grade.
St Luke's Church of England Primary School
0.4 mi
Area grades2025
Inspected after Ofsted withdrew the single overall grade.
Quinton House School
0.8 mi
Inspected by ISI
Duston Eldean Primary School
0.8 mi
Area grades2025
Inspected after Ofsted withdrew the single overall grade.

4 of 14 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

View All Schools

Comparables

View All

91 St Crispin Drive
-
£260k
-
91 St Crispin Drive
-
£275k
-
21 St Crispin Drive
-
£276k
-
35 St Crispin Drive
-
£294k
-

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