20 Northgate End, Bishop's Stortford CM23 2EU

Semi-Detached house · Built before 1900 · 107 m² · Owner-Occupied · Boiler and radiators, mains gas

Upgrade Plan

EC for £20,545 · £10,273 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Low energy lighting£45£123.7 yrs+0.4 pts
Solar water heating£4,000 – £6,000£21523.2 yrs+7.4 pts · reaches D
Solar photovoltaic panels£5,000 – £8,000£25725.3 yrs+8.8 pts
Solid wall insulation£4,000 – £14,000£30030.0 yrs+10.3 pts · reaches C

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

£2,100
per year at grade E
£1,316
per year at grade C

The full plan saves £784 a year — a 3.8% annual return on £20,545.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2015, states £1,460 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

28 October 2015£450,000
1 October 2004£245,000
15 June 1998£77,000

Estimated today: £632,003 HPI-indexed estimate, not a valuation

Northgate End: 33 sales since 1995 · £580,786 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
St Michael's Church of England Primary SchoolPrimary0.4 mi
Windhill21Primary0.4 mi
Northgate Primary SchoolPrimary0.4 mi
St Mary's Catholic SchoolSecondary0.4 miProgress 8 +0.43 · above average (2023/24)
Hockerill Anglo-European CollegeSecondary0.6 miProgress 8 +0.38 · above average (2023/24)
TLC Live Online SchoolSecondary0.6 miNot in the KS4 performance tables

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.

35.3
crimes a month
388
in the last 12 months
Shoplifting
most common · 32% of the total

Police.uk street-level data for LSOA E01035591, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Northgate End

How this home sits against its street.

26
graded homes
71
average score
B
most common grade
-21.0
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.