15 Carson Road, Cockfosters, Barnet EN4 9EX

Detached house · Built 1967-1975 · 125 m² · Boiler and radiators, mains gas

Upgrade Plan

D → C for £21,123 · £21,123 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Cavity wall insulation—£100 – £300£1241.6 yrs+2.6 pts
Low energy lighting—£23£73.2 yrs+0.2 pts
Heating controls—£350 – £450£616.6 yrs+1.3 pts
Solar water heating—£4,000 – £6,000£12938.7 yrs+2.7 pts
Solar photovoltaic panels—£11,000 – £20,000£15450+ yrs+3.2 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

£1,883
per year at grade D
£1,407
per year at grade C

The full plan saves £476 a year — a 2.3% annual return on £21,123.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2011, states £1,131 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

31 August 2011£450,000

Estimated today: £804,183 HPI-indexed estimate, not a valuation

Schools nearby

No school in the register within reach of this postcode.

Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.