21 Approach Close, London N16 8UG

Mid-Terrace maisonette · Built 1967-1975 · 75 m² · Rented (Social) · Boiler and radiators, mains gas

Upgrade Plan

DC for £1,675 · £1,675 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Loft insulation£100 – £350£1341.7 yrs+4.0 pts
Heating controls£350 – £450£1033.9 yrs+3.1 pts
Low energy lighting£50£124.1 yrs+0.4 pts
Cavity wall insulation£500 – £1,500£2114.7 yrs+6.3 pts · reaches C
Band A condensing boiler(optional, beyond C)£2,200 – £3,000£17315.0 yrs+5.2 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

£1,467
per year at grade D
£834
per year at grade C

The full plan saves £460 a year — a 27.5% annual return on £1,675.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2022, states £881 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

30 June 2021£537,000
20 October 2016£490,000
17 August 2007£250,000

Estimated today: £552,778 HPI-indexed estimate, not a valuation

Approach Close: 10 sales since 1995 · £532,000 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
St Matthias Church of England Primary SchoolPrimary0.1 mi
Princess May Primary SchoolPrimary0.2 mi
Grasmere Primary SchoolPrimary0.2 mi
Stoke Newington School and Sixth FormSecondary0.3 miProgress 8 +0.28 · above average (2023/24)
The Excelsior AcademySecondary0.4 miProgress 8 +0.46 · above average (2023/24)
City of London Academy Highbury GroveSecondary0.8 miProgress 8 +0.09 · 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.

22.4
crimes a month
246
in the last 12 months
Anti-social behaviour
most common · 36% of the total

Police.uk street-level data for LSOA E01001740, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Approach Close

How this home sits against its street.

20
graded homes
66.5
average score
C
most common grade
-10.5
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.