3 St. Ambrose Close, Dinas Powys CF64 4TW

Semi-Detached house · Built 1967-1975 · 112 m² · Owner-occupied · Boiler and radiators, mains gas

Upgrade Plan

DC for £4,685 · £4,685 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Floor insulation£800 – £1,200£1586.3 yrs+5.6 pts
Cavity wall insulation£500 – £1,500£1188.5 yrs+4.2 pts
Low energy lighting£85£712.3 yrs+0.2 pts
Band A condensing boiler£2,200 – £3,000£9726.9 yrs+3.4 pts · reaches C
Solar water heating(optional, beyond C)£4,000 – £6,000£12240.9 yrs+4.3 pts
Solar photovoltaic panels(optional, beyond C)£9,000 – £14,000£14650+ yrs+5.2 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

£1,869
per year at grade D
£1,222
per year at grade C

The full plan saves £379 a year — a 8.1% annual return on £4,685.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2012, states £1,103 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

24 May 2019£280,000
11 October 2013£240,000
1 February 2002£146,000

Estimated today: £385,274 HPI-indexed estimate, not a valuation

St Ambrose Close: 39 sales since 1995 · £263,462 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
crimes a month
50
in the last 12 months
Violence and sexual offences
most common · 46% of the total

Police.uk street-level data for LSOA W01001089, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

St Ambrose Close

How this home sits against its street.

19
graded homes
59.3
average score
D
most common grade
-3.3
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.