4 Marken Close, Locks Heath, Southampton SO31 6GG

Detached house · Built 1991-1995 · 182 m² · Owner-Occupied · Boiler and radiators, mains gas

Upgrade Plan

Get upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Floor insulation(optional, beyond C)£800 – £1,200£6315.9 yrs+3.0 pts
Solar photovoltaic panels(optional, beyond C)£3,500 – £5,500£5850+ yrs+2.7 pts
Solar water heating(optional, beyond C)£4,000 – £6,000£4950+ yrs+2.3 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

£1,967
per year at grade C
£1,797
per year at grade C

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2023, states £2,422 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

2 August 2023£710,000
3 April 2009£330,000
24 May 2007£379,950

Estimated today: £692,630 HPI-indexed estimate, not a valuation

Marken Close: 28 sales since 1995 · £528,000 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Sarisbury Infant SchoolPrimary0.4 mi
Sarisbury Church of England Junior SchoolPrimary0.7 mi
Locks Heath Infant & Nursery SchoolPrimary0.8 mi
Brookfield Community SchoolSecondaryunder 0.1 miProgress 8 +0.40 · above average (2023/24)
The Hamble SchoolSecondary2.0 miProgress 8 -0.18 · average (2023/24)
The Henry Cort Community CollegeSecondary2.8 miProgress 8 -0.56 · well 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.

5.6
crimes a month
45
in the last 12 months
Violence and sexual offences
most common · 38% of the total

Police.uk street-level data for LSOA E01022756, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Marken Close

How this home sits against its street.

8
graded homes
69.5
average score
C
most common grade
+1.5
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.