20 Haymoor, Letchworth Garden City SG6 4HT

Semi-Detached house · Built 1950-1966 · 90 m² · Owner-Occupied · Boiler and radiators, mains gas

Upgrade Plan

DB for £9,680 · £4,840 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Low energy lighting£30£56.0 yrs+0.2 pts
Floor insulation£1,200 – £200£1146.1 yrs+4.9 pts
Heating controls£450£4110.9 yrs+1.8 pts
Cavity wall insulation£1,500 – £500£8511.8 yrs+3.7 pts · reaches C
Band A condensing boiler£3,000 – £0£7021.4 yrs+3.0 pts
Solar photovoltaic panels£5,500 – £500£10528.5 yrs+4.6 pts
Solar water heating£6,000 – £0£8834.0 yrs+3.8 pts · reaches B

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

£1,564
per year at grade D
£1,055
per year at grade B

The full plan saves £509 a year — a 5.3% annual return on £9,680.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2020, states £987 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

17 December 2020£488,000
18 June 2010£280,000
16 April 1997£82,000

Estimated today: £567,769 HPI-indexed estimate, not a valuation

Haymoor: 57 sales since 1995 · £525,667 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Wilbury Junior SchoolPrimary0.3 mi
Icknield Infant and Nursery SchoolPrimary0.4 mi
Stonehill SchoolPrimary0.5 mi
Fearnhill SchoolSecondary0.8 miProgress 8 -0.14 · average (2023/24)
The Highfield SchoolSecondary1.2 miAttainment 8 41.7 · no Progress 8 published
The Knights Templar SchoolSecondary1.9 miProgress 8 -0.27 · 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.

5.1
crimes a month
46
in the last 12 months
Anti-social behaviour
most common · 37% of the total

Police.uk street-level data for LSOA E01023634, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Haymoor

How this home sits against its street.

20
graded homes
58.6
average score
D
most common grade
+1.4
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.