12 Chestnut Close, Machen, Caerphilly CF83 8LF

End-Terrace house · Built 1996-2002 · 76 m² · Rented (Private) · Boiler and radiators, mains gas

Upgrade Plan

DB for £12,335 · £6,168 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Low energy lighting£10£42.8 yrs+0.2 pts
Loft insulation£100 – £350£395.8 yrs+2.4 pts · reaches C
Band A condensing boiler£2,200 – £3,000£5050+ yrs+3.0 pts
Solar photovoltaic panels£3,500 – £5,500£7650+ yrs+4.6 pts
Floor insulation£4,000 – £6,000£8250+ yrs+5.0 pts · reaches B
Solar water heating(optional, beyond B)£4,000 – £6,000£6450+ yrs+3.8 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

£1,153
per year at grade D
£839
per year at grade B

The full plan saves £250 a year — a 2.0% annual return on £12,335.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2019, states £727 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

22 August 1997£57,995

Estimated today: £297,984 HPI-indexed estimate, not a valuation

Chestnut Close: 101 sales since 1995 · £211,353 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.

Chestnut Close

How this home sits against its street.

26
graded homes
68.8
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.