9 Dunns Close, Mumbles, Swansea SA3 4AF

End-Terrace house · Built 1991-1995 · 81 m² · Owner-Occupied · Electric storage heaters

Upgrade Plan

EC for £27,750 · £13,875 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Air or ground source heat pump£7,500 Boiler Upgrade Scheme£0 – £22,500£57419.6 yrs+13.1 pts · reaches D
Floor insulation£5,000 – £10,000£22533.3 yrs+5.1 pts
Solar photovoltaic panels£8,000 – £10,000£20843.2 yrs+4.8 pts · reaches C

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

£2,732
per year at grade E
£1,724
per year at grade C

The full plan saves £1,008 a year — a 3.6% annual return on £27,750.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2026, states £2,832 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

1 May 2026£330,000
1 July 2008£310,000
1 August 2001£125,000
18 September 1998£99,150

Estimated today: £328,474 HPI-indexed estimate, not a valuation

Dunns Close: 30 sales since 1995 · £271,868 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.

7.2
crimes a month
79
in the last 12 months
Violence and sexual offences
most common · 25% of the total

Police.uk street-level data for LSOA W01000825, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Dunns Close

How this home sits against its street.

10
graded homes
59.3
average score
D
most common grade
-11.3
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.