11 Blethin Close, Cardiff CF5 2RR

Mid-Terrace maisonette · Built 1976-1982 · 41 m² · Owner-Occupied · Boiler and radiators, mains gas

Upgrade Plan

Get upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Cavity wall insulation(optional, beyond C)£500 – £1,500£2638.3 yrs+0.9 pts
Floor insulation(optional, beyond C)£4,000 – £6,000£3550+ yrs+1.1 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

£547
per year at grade C
£486
per year at grade C

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2025, states £464 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

13 June 2025£145,000
16 January 1998£33,250

Estimated today: £145,000 HPI-indexed estimate, not a valuation

Blethin Close: 83 sales since 1995 · £223,636 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.

6.3
crimes a month
57
in the last 12 months
Violence and sexual offences
most common · 32% of the total

Police.uk street-level data for LSOA W01001780, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Blethin Close

How this home sits against its street.

35
graded homes
66.2
average score
D
most common grade
+10.8
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.