Flat E, 66, St. John Street, London EC1M 4DT

Enclosed Mid-Terrace flat · Built 1991-1995 · 64 m² · Rented (Private) · Boiler and radiators, mains gas

Upgrade Plan

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MeasureGrantNet costSaving / yrPaybackGrade effect
Band A condensing boiler(optional, beyond C)£3,000 – £0£6722.4 yrs+3.0 pts

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

£659
per year at grade C
£592
per year at grade C

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2016, states £459 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

7 May 2021£915,000
23 September 1997£225,000

Estimated today: £917,795 HPI-indexed estimate, not a valuation

St John Street: 827 sales since 1995 · £1,000,422 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
St Peter and St Paul Catholic Primary SchoolPrimary0.2 mi
City of London Primary Academy, IslingtonPrimary0.2 mi
Prior Weston Primary School and Children's CentrePrimary0.3 mi
Central Foundation Boys' SchoolSecondary0.7 miProgress 8 +0.56 · well above average (2023/24)
Elizabeth Garrett Anderson SchoolSecondary0.9 miProgress 8 +0.24 · above average (2023/24)
City of London Academy IslingtonSecondary1.0 miProgress 8 +0.13 · 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.

22.5
crimes a month
247
in the last 12 months
Theft from the person
most common · 19% of the total

Police.uk street-level data for LSOA E01033490, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

St John Street

How this home sits against its street.

454
graded homes
69.4
average score
C
most common grade
+5.6
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.