1 Clos Trefeddyg, MacHen, Caerphilly CF83 8PL

Detached house · Built 2003-2006 · 128 m² · Owner-Occupied · Boiler and radiators, mains gas

Upgrade Plan

CB for £9,910 · £9,910 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Solar photovoltaic panels£8,000 – £10,000£8850+ yrs+8.6 pts
Low energy lighting£840 – £980£450+ yrs+0.4 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

£1,638
per year at grade C
£1,546
per year at grade B

The full plan saves £92 a year — a 0.9% annual return on £9,910.

Energy costs as modelled on the certificate, not a bill.

Sold prices

22 June 2004£247,500

Estimated today: £569,838 HPI-indexed estimate, not a valuation

Clos Trefeddyg: 12 sales since 1995 · £481,250 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.

6.1
crimes a month
43
in the last 12 months
Violence and sexual offences
most common · 30% of the total

Police.uk street-level data for LSOA W01001342, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Clos Trefeddyg

How this home sits against its street.

6
graded homes
72.8
average score
C
most common grade
-0.8
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.