30 Rhydypenau Road, Cardiff CF23 6PT

Semi-Detached house · Built 1930-1949 · 151 m² · Boiler and radiators, mains gas

Upgrade Plan

ED for £1,435 · £1,435 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Low energy lighting£20 – £50typical£123.0 yrs+0.3 pts
Heating controls£400typical£974.1 yrs+2.2 pts
Cavity wall insulation£1,000typical£2005.0 yrs+4.4 pts · reaches D
Band A condensing boiler(optional, beyond D)£2,600typical£16415.8 yrs+3.6 pts
Solar photovoltaic panels(optional, beyond D)£4,500 – £9,000typical£24827.3 yrs+5.5 pts

Grants verified 20 August 2026. Costs are the register’s indicative ranges, except where marked typical, which this certificate did not price and which are taken instead from comparable homes of the same type. 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

£2,405
per year at grade E
£1,684
per year at grade D

The full plan saves £309 a year — a 21.5% annual return on £1,435.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2010, states £1,483 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

2 August 2010£362,500
17 February 2003£225,000
20 December 1996£79,000

Estimated today: £668,036 HPI-indexed estimate, not a valuation

Rhydypenau Road: 169 sales since 1995 · £483,644 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.

6.2
crimes a month
62
in the last 12 months
Violence and sexual offences
most common · 42% of the total

Police.uk street-level data for LSOA W01001732, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Rhydypenau Road

How this home sits against its street.

88
graded homes
59.8
average score
D
most common grade
-7.8
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.