51 St. Davids Drive, Machen, Caerphilly CF83 8RH

Semi-Detached house · Built 1976-1982 · 96 m² · Owner-occupied · Boiler and radiators, mains gas

Upgrade Plan

DB for £20,135 · £10,068 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Low energy lighting£35£310.1 yrs+0.2 pts
Floor insulation£800 – £1,200£7912.6 yrs+4.8 pts · reaches C
Band A condensing boiler£2,200 – £3,000£4950+ yrs+2.9 pts
Solar water heating£4,000 – £6,000£6250+ yrs+3.7 pts
Solar photovoltaic panels£9,000 – £14,000£7450+ yrs+4.4 pts · reaches B

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

£1,242
per year at grade D
£975
per year at grade B

The full plan saves £267 a year — a 1.3% annual return on £20,135.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2013, states £754 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

13 February 2017£157,000
4 February 2015£145,000

Estimated today: £271,615 HPI-indexed estimate, not a valuation

St Davids Drive: 39 sales since 1995 · £216,000 average over 10 years

Schools nearby

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

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.

12.2
crimes a month
134
in the last 12 months
Violence and sexual offences
most common · 49% of the total

Police.uk street-level data for LSOA W01001345, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

St Davids Drive

How this home sits against its street.

23
graded homes
65
average score
D
most common grade
+2.0
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.