31 Glan Rhymni, Splott, Cardiff CF24 2TW

Detached house · Built 2003-2006 · 118 m² · Rented (Private) · Boiler and radiators, mains gas

Upgrade Plan

CB for £8,800 · £8,800 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Double glazing£1,000 – £1,400£2843.1 yrs+1.8 pts
Band A condensing boiler£2,200 – £3,000£4750+ yrs+3.0 pts
Solar water heating£4,000 – £6,000£6050+ yrs+3.8 pts · reaches B
Solar photovoltaic panels(optional, beyond B)£5,000 – £8,000£7150+ yrs+4.5 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

£1,103
per year at grade C
£897
per year at grade B

The full plan saves £135 a year — a 1.5% annual return on £8,800.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2015, states £775 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

12 November 2020£266,000
22 February 2006£210,000
7 May 2004£174,950

Estimated today: £326,178 HPI-indexed estimate, not a valuation

Glan Rhymni: 182 sales since 1995 · £159,340 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.

19.2
crimes a month
211
in the last 12 months
Violence and sexual offences
most common · 29% of the total

Police.uk street-level data for LSOA W01002021, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Glan Rhymni

How this home sits against its street.

64
graded homes
74.1
average score
C
most common grade
-1.1
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.