21 Brighstone Close, Southampton SO16 3EJ

Mid-Terrace house · Built 1967-1975 · 76 m² · Boiler and radiators, mains gas

Upgrade Plan

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MeasureGrantNet costSaving / yrPaybackGrade effect
Low energy lighting(optional, beyond C)£20 – £45typical£48.3 yrs+0.1 pts
Heating controls(optional, beyond C)£400typical£3212.3 yrs+1.1 pts
Band A condensing boiler(optional, beyond C)£2,600typical£5547.4 yrs+1.8 pts
Solar water heating(optional, beyond C)£5,000typical£6950+ yrs+2.3 pts
Solar photovoltaic panels(optional, beyond C)£4,500 – £9,000typical£8350+ yrs+2.7 pts

Grants verified 20 August 2026. Costs are the register’s indicative ranges, except where marked typical, which this certificate did not price and which are taken instead from comparable homes of the same type. 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

£1,037
per year at grade C
£794
per year at grade C

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2009, states £625 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

11 December 2009£135,000
18 April 2008£125,000
20 November 2003£115,000

Estimated today: £229,593 HPI-indexed estimate, not a valuation

Brighstone Close: 34 sales since 1995 · £199,992 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Bassett Green Primary SchoolPrimary0.4 mi
Swaythling Primary SchoolPrimary0.6 mi
Mansbridge Primary SchoolPrimary0.7 mi
Saint George Catholic Voluntary Aided College SouthamptonSecondaryunder 0.1 miProgress 8 +0.82 · well above average (2023/24)
Cantell SchoolSecondary0.6 miProgress 8 +0.21 · above average (2023/24)
Bitterne Park SchoolSecondary1.2 miProgress 8 -0.19 · 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.

5.2
crimes a month
52
in the last 12 months
Violence and sexual offences
most common · 52% of the total

Police.uk street-level data for LSOA E01017270, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Brighstone Close

How this home sits against its street.

19
graded homes
60.6
average score
C
most common grade
+9.4
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.