18 Dunn Close, Southsea PO4 9TX

End-Terrace flat · Built 1996-2002 · 57 m² · Rented (Social) · Boiler and radiators, mains gas

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This certificate lists these measures but records the same score with and without them, so there is no saving or rating gain to attribute to any one of them. That usually means the assessment was incomplete — here the assessor recorded no heating system at all. The costs below are real; a fresh assessment would be the way to find the gain.

MeasureGrantNet costSaving / yrPaybackGrade effect
Floor insulation£800 – £1,200

Grants verified 20 August 2026. Costs are the register’s indicative ranges.

Running costs

£664
per year at grade C
£640
per year at grade C

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2022, states £391 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

No sale recorded for this address since 1995.

Dunn Close: 8 sales since 1995 · £285,000 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Milton Park Primary SchoolPrimary0.4 mi
Cumberland Infant SchoolPrimary0.4 mi
Meon Junior SchoolPrimary0.5 mi
Miltoncross AcademySecondary1.0 miProgress 8 -0.60 · well below average (2023/24)
Priory SchoolSecondary1.2 miProgress 8 -0.55 · well below average (2023/24)
The Portsmouth AcademySecondary1.5 miProgress 8 -1.10 · 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.

10.1
crimes a month
111
in the last 12 months
Violence and sexual offences
most common · 35% of the total

Police.uk street-level data for LSOA E01017067, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Dunn Close

How this home sits against its street.

48
graded homes
73.4
average score
C
most common grade
+3.6
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.