13 Branwen Close, Cardiff CF5 4NE

Detached house · Built 1983-1990 · 47 m² · Owner-occupied · Boiler and radiators, mains gas

Upgrade Plan

EB for £23,488 · £7,829 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Hot water cylinder insulation£15 – £400£892.3 yrs+6.0 pts
Low energy lighting£30£56.6 yrs+0.3 pts
Floor insulation£800 – £1,200£1049.6 yrs+7.0 pts · reaches D
Heating controls£350 – £450£3810.5 yrs+2.6 pts
Wind turbine£1,500 – £4,000£8631.9 yrs+5.8 pts
Band A condensing boiler£2,200 – £3,000£6440.6 yrs+4.3 pts · reaches C
Solar water heating£4,000 – £6,000£8150+ yrs+5.5 pts
Solar photovoltaic panels£9,000 – £14,000£9650+ yrs+6.5 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

£1,367
per year at grade E
£804
per year at grade B

The full plan saves £563 a year — a 2.4% annual return on £23,488.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2012, states £808 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

28 January 2022£275,000
19 June 2015£179,000
16 March 2007£172,500
8 December 2000£86,000
29 November 1996£59,950

Estimated today: £306,592 HPI-indexed estimate, not a valuation

Branwen Close: 29 sales since 1995 · £235,143 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.

10.9
crimes a month
120
in the last 12 months
Violence and sexual offences
most common · 57% of the total

Police.uk street-level data for LSOA W01001702, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Branwen Close

How this home sits against its street.

10
graded homes
62.8
average score
D
most common grade
-17.8
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.