Flat, Black Swan Coaching Inn Guest House, 21 High Street, Marton, Gainsborough, DN21 5AH

UPRN:100030952387-Beds -Built -

Tenure: -Council Tax: -EPC: -

Data freshness:Listing· freshPlanning· freshOwnership· freshRisk· 5mo agoCrime· freshConnectivity· 1mo agoSchools· 1mo agoAmenities· 2mo agoArea· Census 2021

Flat, Black Swan Coaching Inn Guest House, 21 High Street, Marton, Gainsborough, DN21 5AH

HP Score

/ 100

Mixed

Verdict

yesterday

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

Evidence

15 of 21 sources

Sale Estimate

£178,000

£143k - £214kLow

Estimate

£178k

Range

£143k – £214k

Rent Estimate (pcm)

-- - --

Verdict

Derived from HomePortfolio scores

Flat earns an INVESTIGATE rating with HP Score 62/100. Investment score 54/100 reflects moderate fundamentals. Crime intensity is very low. Walkability is limited (15/100). 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 SourcesPortal 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 Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

62/ 100

Mixed

Investment Score

54/ 100

Moderate

Crime Score

13/ 100

Low

Walkability

15/ 100

Low

Transit & Bike

Transit 6Bike 20

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)
headline score requires rental_economics (no rent estimate available)

What we could establish

Risk & liquidity9.3/15
485 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.

Evidence

Where every number comes from

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 could not be scored
no rent estimate available

Plan

Before you offer

1. Fill the valuation edge gap before relying on the score.
estimate confidence LOW below scoring floor
2. Fill the rental economics gap before relying on the score.
no rent estimate available
3. Fill the stress margin gap before relying on the score.
no rent to stress
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£178,000

Rent Estimate (pcm)-

Gross Yield-

1y Growth-34.2%

3y Growth-2.1%

5y Growth+1.1%

10y Growth+2.2%

Last Sold Price-

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceLow
RadonLow
MiningUnknown
LandslideLow
Air QualityLow
NoiseModerate

View Full Risk Report

Planning Activity

Recent Apps

2DN21 5AH

Approval Rate

100%12mo

Development

low

151514
Planning application for change of use of existing one-bedroom dwellinghouse to short term holiday let accommodation.
Pending
151402
The Electronic Communications Code (Conditions and restrictions) Regulations 2003 (as amended) – Regulation 5 Notice of Intention to Install Fixed Line Broadband Apparatus - for 3no. light wooden poles.
Conditions
151296
Application for prior notification for proposed agricultural private way and associated manoeuvring areas.
Approved

View Planning Timeline

Ownership

Corporate Ownership72.4%
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£30,741

Population Density-

Owner Occupied85%

Age Distribution

0-15 9%16-64 44%65+ 47%

View Area Profile

Schools Nearby

The Marton Academy
0.3 mi
Report card2026
Ofsted no longer awards a single overall grade.
Frances Olive Anderson Church of England (Aided) Primary School
2.8 mi
Good
Sturton by Stow Primary School
3.2 mi
Good
Leverton Church of England Academy
3.3 mi
GoodConcerns

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

View All Schools

Comparables

View All

31 High Street
-
£243k
-
46 High Street
-
£250k
-
43 High Street
-
£390k
-
43 High Street
-
£370k
-

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