65 Mill Street, Tonyrefail, Porth CF39 8AE

Mid-Terrace house · Built 1900-1929 · 88 m² · Unknown · No system present: electric heaters assumed

Upgrade Plan

GB for £32,910 · £6,582 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Low energy lighting£10£110.9 yrs+0.4 pts
Loft insulation£100 – £350£1241.8 yrs+4.2 pts
Cavity wall insulation£500 – £1,500£1955.1 yrs+6.6 pts
Flat roof insulation£850 – £1,500£1985.9 yrs+6.7 pts · reaches F
Change of heating system£3,000 – £7,000£7446.7 yrs+25.4 pts · reaches E
Floor insulation£4,000 – £6,000£26119.2 yrs+8.9 pts · reaches D
Solar water heating£4,000 – £6,000£20224.7 yrs+6.9 pts
Solar photovoltaic panels£5,000 – £8,000£24126.9 yrs+8.2 pts · reaches C
Solid wall insulation£4,000 – £14,000£28231.9 yrs+9.6 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

£2,849
per year at grade G
£591
per year at grade B

The full plan saves £2,258 a year — a 6.9% annual return on £32,910.

Energy costs as modelled on the certificate, not a bill. This fuel has too few recent certificates to restate at today's prices.

Sold prices

27 May 2016£79,950

Estimated today: £142,350 HPI-indexed estimate, not a valuation

Mill Street: 129 sales since 1995 · £113,883 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.

12.5
crimes a month
138
in the last 12 months
Violence and sexual offences
most common · 39% of the total

Police.uk street-level data for LSOA W01001249, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Mill Street

How this home sits against its street.

85
graded homes
59
average score
D
most common grade
-50.0
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.