89 Mareham Lane, Sleaford, NG34 7JZ

UPRN:10006517645Detached PropertyBeds -Built 1996-2002

FreeholdCouncil Tax: Band EEPC: C (72)

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

HP Score

/ 100

Mixed

Verdict

4 days ago

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

Evidence

19 of 21 sources

Sale Estimate

£433,000

£346k - £519kLow

Estimate

£433k

Range

£346k – £519k

Rent Estimate (pcm)

£1,750

£2k - £2k

Monthly

£1,750

Yield

4.57%

Verdict

Derived from HomePortfolio scores

89 Mareham Lane earns an INVESTIGATE rating with HP Score 65/100. Investment score 55/100 reflects moderate fundamentals. Crime intensity is moderate. Walkability is limited (48/100). 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 Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

65/ 100

Mixed

Investment Score

55/ 100

Moderate

Crime Score

41/ 100

Elevated

Walkability

48/ 100

Mixed

Transit & Bike

Transit 11Bike 57

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 economics0/40
gross yield 4.6%; range width penalty ×0.86
- valuation_snapshotsrent estimate 1750/mo (range 1600-1900)· as of 13 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -784/mo, -45% 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 4 Nov 2026
Risk & liquidity9.2/15
519 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£460,000

At the asking price

Monthly rent£1,750/mo

Evidenced range £1,600-£1,900

Interest rate5.4%

Loan to value75%

Cash required: £152,300
Net cash flow: -£341/mo
Cash on cash: -2.7%
Score at this price: -

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.13 - below 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 1750/mo (range 1600-1900)Rental economics · as of 13 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 4 Nov 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 4 Nov 2026
property_intelligencetransactions_12moRisk & liquidity

Sold comparables in depth Valuation methodology

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 1750/mo (range 1600-1900)

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. Fill the valuation edge gap before relying on the score.
estimate confidence LOW below scoring floor
3. 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£433,000

Rent Estimate (pcm)£1,750

Gross Yield4.57%

1y Growth-

3y Growth+0.5%

5y Growth+1.4%

10y Growth+3.2%

Last Sold Price£215,000 (2003-05-14)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningUnknown
LandslideLow
Air QualityLow
NoiseBelow 40 dB

View Full Risk Report

Planning Activity

Recent Apps

0NG34 7JZ

Approval Rate

-12mo

Development

low

26/1397/TCA
T1 - Tree of Heaven - Fell and remove the stump by grinding T2 - Tree of Heaven - Deadwood and remove epicormic growth T3 - Sycamore - Fell and remove, cut the stump as low as possible T4 - Sycamore - Fell and remove, cut the stump as low as possible T5 - Ash - Reduce by 6ft
Pending
26/1310/TCA
Remove Conifer in rear garden.
Pending
26/1146/RESM
Reserved matters application for the erection of 46 no. residential dwellings and associated infrastructure (reserved matters details of appearance, landscaping, layout and scale) to be considered pursuant to planning application 13/0498/OUT as revised by 17/1355/VARCON
Pending

View Planning Timeline

Ownership

Corporate Ownership69.5%
Overseas OwnershipNo
Lease Term Remaining-
CovenantsRestrictive
Lease TypeFreehold
Last Ownership Change2003-05-14
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

15 Mbps

Mobile 4G/5G Coverage

EEThreeO2Vodafone

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£30,585

Population Density703 /km²

Owner Occupied74%

Age Distribution

0-15 18%16-64 63%65+ 19%

View Area Profile

Schools Nearby

Kesteven and Sleaford High School Selective Academy
0.4 mi
Area grades2024
Inspected after Ofsted withdrew the single overall grade.
Willow School
0.5 mi
Good
Holton Sleaford Independent School
0.6 mi
Good
William Alvey School
0.7 mi
Good

2 of 12 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

View All Schools

Comparables

View All

91 Mareham Lane
-
£415k
-
85 Mareham Lane
-
£285k
-
77B Mareham Lane
-
£325k
-
83A Mareham Lane
-
£247k
-

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