23 Itchenside Close, Southampton SO18 2LZ

Semi-Detached house · Built 1930-1949 · 80 m² · Owner-occupied · Boiler and radiators, mains gas

Upgrade Plan

DB for £8,860 · £4,430 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Loft insulation£100 – £350£435.2 yrs+2.6 pts
Low energy lighting£35£48.8 yrs+0.2 pts
Floor insulation£800 – £1,200£9111.0 yrs+5.5 pts · reaches C
Band A condensing boiler£2,200 – £3,000£5646.4 yrs+3.4 pts
Solar water heating£4,000 – £6,000£7150+ yrs+4.2 pts · reaches B
Solar photovoltaic panels(optional, beyond B)£9,000 – £14,000£8450+ yrs+5.1 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

£1,136
per year at grade D
£786
per year at grade B

The full plan saves £266 a year — a 3.0% annual return on £8,860.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2013, states £715 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

19 December 2014£150,000
26 February 1999£50,500

Estimated today: £226,606 HPI-indexed estimate, not a valuation

Itchenside Close: 30 sales since 1995 · £164,125 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Mansbridge Primary SchoolPrimary0.1 mi
Bitterne Park Primary & Nursery School - Part of the Learning Federation Partnership of SchoolsPrimary0.7 mi
Townhill Junior SchoolPrimary0.7 mi
Bitterne Park SchoolSecondary0.6 miProgress 8 -0.19 · average (2023/24)
Saint George Catholic Voluntary Aided College SouthamptonSecondary0.9 miProgress 8 +0.82 · well above average (2023/24)
Cantell SchoolSecondary1.3 miProgress 8 +0.21 · above 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.

14
crimes a month
154
in the last 12 months
Violence and sexual offences
most common · 47% of the total

Police.uk street-level data for LSOA E01017265, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Itchenside Close

How this home sits against its street.

67
graded homes
73
average score
C
most common grade
-7.0
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.