Cwmlogin House, Cefneithin, Llanelli SA14 7HB

Detached house · Built before 1900 · 100 m² · Owner-Occupied · Boiler and radiators, oil

Upgrade Plan

FA for £47,775 · £9,555 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Cavity wall insulation£500 – £1,500£1397.2 yrs+6.6 pts
Room-in-roof insulation£1,500 – £2,700£2578.2 yrs+12.1 pts · reaches E
Flat roof insulation£850 – £1,500£1418.3 yrs+6.7 pts · reaches D
Solar photovoltaic panels£3,500 – £5,500£17226.1 yrs+8.1 pts
Floor insulation£4,000 – £6,000£18626.9 yrs+8.8 pts · reaches C
Solar water heating£4,000 – £6,000£14434.6 yrs+6.8 pts
Solid wall insulation£4,000 – £14,000£20144.7 yrs+9.5 pts · reaches B
Wind turbine£15,000 – £25,000£15450+ yrs+7.3 pts · reaches A

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

£2,594
per year at grade F
£1,199
per year at grade A

The full plan saves £1,395 a year — a 2.9% annual return on £47,775.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2023, states £3,041 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

No sale recorded for this address since 1995.

Schools nearby

The DfE register covers England. Welsh schools are held in a separate Welsh Government register, which we have not ingested yet.

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