4 Locks Road, Locks Heath, Southampton SO31 6NT

Detached house · Built 1930-1949 · 240 m² · Owner-occupied · Boiler and radiators, mains gas

Upgrade Plan

DB for £16,795 · £8,398 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Loft insulation£100 – £350£1811.2 yrs+3.0 pts
Floor insulation£800 – £1,200£3812.6 yrs+6.2 pts
Heating controls£350 – £450£1392.9 yrs+2.3 pts
Cavity wall insulation£500 – £1,500£2853.5 yrs+4.7 pts · reaches C
Low energy lighting£70£174.2 yrs+0.3 pts
Band A condensing boiler£2,200 – £3,000£23411.1 yrs+3.8 pts
Solar photovoltaic panels£9,000 – £14,000£35332.6 yrs+5.8 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

£3,262
per year at grade D
£1,672
per year at grade B

The full plan saves £1,590 a year — a 9.5% annual return on £16,795.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2014, states £2,261 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

20 August 2007£335,000
23 August 1996£86,000

Estimated today: £551,799 HPI-indexed estimate, not a valuation

Locks Road: 390 sales since 1995 · £449,232 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Locks Heath Junior SchoolPrimary0.2 mi
Locks Heath Infant & Nursery SchoolPrimary0.2 mi
St John the Baptist Church of England Primary SchoolPrimary0.5 mi
Brookfield Community SchoolSecondary0.8 miProgress 8 +0.40 · above average (2023/24)
The Henry Cort Community CollegeSecondary2.3 miProgress 8 -0.56 · well below average (2023/24)
The Hamble SchoolSecondary2.7 miProgress 8 -0.18 · 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.

3.9
crimes a month
39
in the last 12 months
Violence and sexual offences
most common · 54% of the total

Police.uk street-level data for LSOA E01022750, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Locks Road

How this home sits against its street.

165
graded homes
69.3
average score
C
most common grade
-13.3
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.