12 Locking Drive, Armthorpe, Doncaster DN3 3SN

Semi-Detached bungalow · Built 1967-1975 · 49 m² · Owner-Occupied · Boiler and radiators, mains gas

Upgrade Plan

EB for £16,785 · £5,595 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Flue gas heat recovery£400 – £900£887.3 yrs+5.9 pts · reaches D
Low energy lighting£35£48.8 yrs+0.3 pts
Floor insulation£800 – £1,200£9111.0 yrs+6.1 pts
Cavity wall insulation£500 – £1,500£6814.7 yrs+4.6 pts · reaches C
Band A condensing boiler£2,200 – £3,000£5646.5 yrs+3.7 pts
Solar water heating£4,000 – £6,000£7150+ yrs+4.7 pts
Solar photovoltaic panels£5,000 – £8,000£8450+ yrs+5.6 pts · reaches B

Grants verified 20 August 2026. Costs are the register’s indicative ranges. Savings are restated at the fuel prices assumed in July 2026. Points per measure are estimated from 19.9 million certificates and rescaled to this home’s own certificate delta; the total is the register’s figure.

Running costs

£1,201
per year at grade E
£739
per year at grade B

The full plan saves £462 a year — a 2.8% annual return on £16,785.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2015, states £835 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

16 May 1997£36,500
10 May 1996£30,000
28 April 1995£35,000

Estimated today: £176,771 HPI-indexed estimate, not a valuation

Locking Drive: 100 sales since 1995 · £132,433 average over 10 years

Schools nearby

The schools’ own performance — Progress 8 shows value added, not just raw results.

SchoolPhaseDistanceProgress
Tranmoor PrimaryPrimary0.4 mi
Southfield PrimaryPrimary0.5 mi
Our Lady of Sorrows Catholic Voluntary AcademyPrimary0.9 mi
Armthorpe AcademySecondary0.9 miProgress 8 -0.98 · well below average (2023/24)
Outwood Academy DanumSecondary1.7 miProgress 8 -0.17 · average (2023/24)
The McAuley Catholic High SchoolSecondary1.8 miProgress 8 -0.06 · average (2023/24)

Schools from the DfE register, performance from the KS4 performance tables. Progress 8 is a GCSE measure, so primaries have none. Distance is straight-line from the postcode, not a catchment: admission is decided by the school, not by us.

Area context

Police-recorded crime for the wider neighbourhood, not this address. We grade homes, never neighbourhoods — so this is reported as a count, not a rating.

5.5
crimes a month
61
in the last 12 months
Violence and sexual offences
most common · 33% of the total

Police.uk street-level data for LSOA E01007484, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Locking Drive

How this home sits against its street.

29
graded homes
65.3
average score
D
most common grade
-11.3
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.