18 Walnut Drive, Killamarsh, Sheffield S21 1GE

Semi-Detached house · Built 1976-1982 · 72 m² · Owner-Occupied · Boiler and radiators, mains gas

Upgrade Plan

DB for £15,975 · £7,988 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Low energy lighting£25£55.2 yrs+0.3 pts
Party wall insulation£300 – £600£597.6 yrs+3.2 pts
Heating controls£350 – £450£4010.1 yrs+2.1 pts
High-performance doors£2,000 – £0£8711.5 yrs+4.7 pts · reaches C
Band A condensing boiler£2,200 – £3,000£6738.9 yrs+3.6 pts
Solar water heating£4,000 – £6,000£8450+ yrs+4.6 pts
Solar photovoltaic panels£5,000 – £8,000£10150+ yrs+5.5 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

£1,370
per year at grade D
£927
per year at grade B

The full plan saves £443 a year — a 2.8% annual return on £15,975.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2019, states £864 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

25 October 2019£160,000
27 November 2009£139,955
8 August 2008£146,000
6 February 2006£125,000
30 September 1998£46,000

Estimated today: £218,653 HPI-indexed estimate, not a valuation

Walnut Drive: 21 sales since 1995 · £180,200 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
St Giles CofE Primary SchoolPrimary0.4 mi
Immaculate Conception Catholic PrimaryPrimary1.0 mi
Killamarsh Infant SchoolPrimary1.0 mi
Westfield SchoolSecondary1.6 miProgress 8 -0.21 · below average (2023/24)
Eckington SchoolSecondary2.3 miProgress 8 -0.36 · below average (2023/24)
Wales High SchoolSecondary2.8 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.

3.2
crimes a month
19
in the last 12 months
Violence and sexual offences
most common · 63% of the total

Police.uk street-level data for LSOA E01019804, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Walnut Drive

How this home sits against its street.

8
graded homes
66.5
average score
D
most common grade
-7.5
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.