11 Colwyn Close, Stevenage SG1 2AT

Enclosed Mid-Terrace house · Built 1983-1990 · 33 m² · 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
Solar water heating£5,000typical
Solar photovoltaic panels£4,500 – £6,500typical
Wind turbine£2,750typical

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.

Running costs

£531
per year at grade B

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2010, states £332 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

9 September 2020£260,000
19 March 2015£210,000
11 February 2005£149,900
25 January 2002£103,000
23 June 2000£80,000
18 December 1998£66,000
30 July 1996£59,468

Estimated today: £318,933 HPI-indexed estimate, not a valuation

Colwyn Close: 215 sales since 1995 · £279,000 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Woolenwick Junior SchoolPrimary0.3 mi
Woolenwick Infant and Nursery SchoolPrimary0.3 mi
Letchmore Infants' and Nursery SchoolPrimary0.6 mi
The Saint John Henry Newman Catholic SchoolSecondary0.4 miProgress 8 +0.72 · well above average (2023/24)
The Thomas Alleyne AcademySecondary0.4 miProgress 8 +0.04 · average (2023/24)
Barclay AcademySecondary0.6 miProgress 8 +0.17 · 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.

8.3
crimes a month
83
in the last 12 months
Violence and sexual offences
most common · 45% of the total

Police.uk street-level data for LSOA E01023795, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Colwyn Close

How this home sits against its street.

56
graded homes
66.4
average score
D
most common grade
+14.6
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.