3 Maillards Haven, Penarth CF64 5RF

Detached house · Built 1983-1990 · 126 m² · Owner-Occupied · Boiler and radiators, mains gas

Upgrade Plan

CB for £14,535 · £14,535 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Low energy lighting£35£48.6 yrs+0.2 pts
Solar photovoltaic panels£3,500 – £5,500£8650+ yrs+4.0 pts
Floor insulation£4,000 – £6,000£9350+ yrs+4.4 pts
Solar water heating£4,000 – £6,000£7250+ yrs+3.4 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

£1,394
per year at grade C
£1,138
per year at grade B

The full plan saves £256 a year — a 1.8% annual return on £14,535.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2022, states £839 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

31 August 2023£885,000
15 June 2018£570,000
24 August 2001£269,950

Estimated today: £889,271 HPI-indexed estimate, not a valuation

Maillards Haven: 30 sales since 1995 · £741,014 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.

5.3
crimes a month
42
in the last 12 months
Violence and sexual offences
most common · 38% of the total

Police.uk street-level data for LSOA W01001114, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Maillards Haven

How this home sits against its street.

14
graded homes
69.1
average score
D
most common grade
+2.9
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.