41 Willowbrook Gardens, St. Mellons, Cardiff CF3 0BF

Semi-Detached house · Built 2003-2006 · 68 m² · Owner-Occupied · Boiler and radiators, mains gas

Upgrade Plan

DB for £8,035 · £4,018 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Low energy lighting£35£57.1 yrs+0.4 pts
Cavity wall insulation£1,500 – £500£8411.9 yrs+6.3 pts · reaches C
Solar water heating£6,000 – £0£8734.3 yrs+6.5 pts
Solar photovoltaic panels£8,000 – £0£10438.3 yrs+7.8 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

£961
per year at grade D
£680
per year at grade B

The full plan saves £281 a year — a 3.5% annual return on £8,035.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2015, states £675 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

28 September 2018£185,000
11 May 2018£175,000
3 March 2006£144,995

Estimated today: £249,569 HPI-indexed estimate, not a valuation

Willowbrook Gardens: 212 sales since 1995 · £197,047 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.

24.2
crimes a month
266
in the last 12 months
Violence and sexual offences
most common · 38% of the total

Police.uk street-level data for LSOA W01001879, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Willowbrook Gardens

How this home sits against its street.

101
graded homes
74.6
average score
C
most common grade
-8.6
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.