9 Whyalla Close, Grainthorpe, Louth LN11 7JQ

Detached house · Built 1976-1982 · 113 m² · Owner-Occupied · Boiler and radiators, oil

Upgrade Plan

EC for £14,345 · £7,173 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Hot water cylinder insulation£200 – £400£1162.6 yrs+4.5 pts
Low energy lighting£45£67.6 yrs+0.2 pts
Heating controls£350 – £450£498.1 yrs+1.9 pts
Cavity wall insulation£500 – £1,500£1019.9 yrs+3.9 pts · reaches D
Band A condensing boiler£2,200 – £3,000£8331.3 yrs+3.2 pts
Floor insulation£4,000 – £6,000£13536.9 yrs+5.3 pts
Solar water heating£4,000 – £6,000£10547.6 yrs+4.1 pts · reaches C
Solar photovoltaic panels(optional, beyond C)£5,000 – £8,000£12550+ yrs+4.9 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

£1,901
per year at grade E
£1,180
per year at grade C

The full plan saves £596 a year — a 4.2% annual return on £14,345.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2016, states £1,353 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

30 July 2019£197,000
13 July 2004£179,950

Estimated today: £251,058 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.