18 Johns Road, Southampton SO19 9BU

Semi-Detached house · Built before 1900 · 89 m² · Owner-occupied · Electric storage heaters

Upgrade Plan

FD for £8,750 · £4,375 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
High-retention storage heaters£1,500 – £2,000£5333.3 yrs+13.8 pts · reaches E
Floor insulation£800 – £1,200£2703.7 yrs+7.0 pts
Cavity wall insulation£500 – £1,500£2025.0 yrs+5.2 pts
Solar water heating£4,000 – £6,000£21023.8 yrs+5.4 pts · reaches D
Solar photovoltaic panels(optional, beyond D)£9,000 – £14,000£25046.0 yrs+6.5 pts

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

£3,406
per year at grade F
£1,941
per year at grade D

The full plan saves £1,215 a year — a 13.9% annual return on £8,750.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2014, states £1,799 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

No sale recorded for this address since 1995.

Johns Road: 89 sales since 1995 · £231,748 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Woolston Infant SchoolPrimary0.2 mi
St Patrick's Catholic Primary SchoolPrimary0.3 mi
Ludlow Infant AcademyPrimary0.4 mi
Oasis Academy SholingSecondary1.0 miProgress 8 -0.66 · well below average (2023/24)
Weston Secondary SchoolSecondary1.2 miProgress 8 -0.71 · well below average (2023/24)
Oasis Academy MayfieldSecondary1.5 miProgress 8 -0.37 · below 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.

23.4
crimes a month
257
in the last 12 months
Violence and sexual offences
most common · 49% of the total

Police.uk street-level data for LSOA E01017276, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Johns Road

How this home sits against its street.

43
graded homes
64
average score
D
most common grade
-37.0
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.