51 Highfields, Cardiff CF5 2QB

Semi-Detached house · Built 1950-1966 · 134 m² · Owner-Occupied · Warm air, mains gas

Upgrade Plan

ED for £8,978 · £8,978 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Hot water cylinder insulation£15 – £30£1370.2 yrs+3.8 pts
Flat roof insulation£850 – £1,500£1229.6 yrs+3.4 pts
Low energy lighting£80£711.4 yrs+0.2 pts
High-performance doors£2,500 – £500£12811.7 yrs+3.5 pts
Double glazing£1,000 – £1,400£5820.6 yrs+1.6 pts
Floor insulation£4,000 – £6,000£16131.1 yrs+4.4 pts · reaches D
Warm air unit replacement(optional, beyond D)£1,250 – £2,500£5732.9 yrs+1.6 pts
Solar water heating(optional, beyond D)£4,000 – £6,000£12540.1 yrs+3.4 pts
Solar photovoltaic panels(optional, beyond D)£5,000 – £8,000£14943.7 yrs+4.1 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

£2,861
per year at grade E
£1,917
per year at grade D

The full plan saves £614 a year — a 6.8% annual return on £8,978.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2016, states £2,031 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

2 June 2016£312,500

Estimated today: £470,117 HPI-indexed estimate, not a valuation

Highfields: 57 sales since 1995 · £562,786 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.

6.3
crimes a month
57
in the last 12 months
Violence and sexual offences
most common · 32% of the total

Police.uk street-level data for LSOA W01001780, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Highfields

How this home sits against its street.

35
graded homes
62.8
average score
D
most common grade
-22.8
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.