11 Gibbs Square, London SE19 1JN

End-Terrace flat · 1930-1949 · Boiler and radiators, mains gas

Upgrade Plan

DC for £9,423 · £9,423 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Low energy lighting£15 – £30typical£117.8 yrs+0.1 pts
Heating controls£400typical£1138.0 yrs+0.7 pts
Solid wall insulation£9,000typical£3150+ yrs+2.2 pts · reaches C

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

£558
per year at grade D
£515
per year at grade C

The full plan saves £43 a year — a 0.5% annual return on £9,423.

Energy costs as modelled on the certificate, not a bill. This fuel has too few recent certificates to restate at today's prices.

Sold prices

19 March 2015£275,000
23 June 2008£240,000
21 June 2005£160,000

Estimated today: £305,921 HPI-indexed estimate, not a valuation

Gibbs Square: 26 sales since 1995 · £428,264 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Kingswood Primary SchoolPrimary0.3 mi
Rockmount Primary SchoolPrimary0.3 mi
St Joseph's RC Infant SchoolPrimary0.3 mi
The Norwood SchoolSecondary0.3 miProgress 8 +0.03 · average (2023/24)
St Joseph's CollegeSecondary0.7 miProgress 8 +0.04 · average (2023/24)
Kingsdale Foundation SchoolSecondary0.7 miProgress 8 +0.68 · well 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.

9
crimes a month
90
in the last 12 months
Violence and sexual offences
most common · 33% of the total

Police.uk street-level data for LSOA E01003069, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Gibbs Square

How this home sits against its street.

22
graded homes
57.6
average score
D
most common grade
+9.4
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.