Flat, 3 Clos Elphan, St. Mellons, Cardiff CF3 2AE

Semi-Detached flat · Built 2007-2011 · 47 m² · Rented (Private) · Room heaters, electric

Upgrade Plan

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MeasureGrantNet costSaving / yrPaybackGrade effect
Loft insulation(optional, beyond D)£100 – £350£1701.3 yrs+5.5 pts
Low energy lighting(optional, beyond D)£30£161.9 yrs+0.5 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

£1,128
per year at grade D
£942
per year at grade D

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2015, states £615 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

30 March 2004£380,000
29 June 2001£300,000

Estimated today: £633,333 HPI-indexed estimate, not a valuation

Clos Elphan: 20 sales since 1995 · £632,200 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.

5.7
crimes a month
51
in the last 12 months
Violence and sexual offences
most common · 37% of the total

Police.uk street-level data for LSOA W01001877, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Clos Elphan

How this home sits against its street.

6
graded homes
66.2
average score
D
most common grade
-5.2
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.