20 Sandringham Road, Cardiff CF23 5BJ

Mid-Terrace house · Built 1930-1949 · 147 m² · Owner-Occupied · Boiler and radiators, mains gas

Upgrade Plan

CB for £5,500 · £5,500 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Cavity wall insulation£500 – £1,500£6415.7 yrs+4.0 pts
Solar photovoltaic panels£3,500 – £5,500£7950+ yrs+5.0 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

£1,496
per year at grade C
£1,353
per year at grade B

The full plan saves £143 a year — a 2.6% annual return on £5,500.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2024, states £1,307 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

20 June 2025£601,150
21 May 2014£325,000
22 October 2001£159,750
30 April 1998£93,500
31 May 1996£55,000

Estimated today: £620,310 HPI-indexed estimate, not a valuation

Sandringham Road: 40 sales since 1995 · £476,761 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
crimes a month
54
in the last 12 months
Vehicle crime
most common · 30% of the total

Police.uk street-level data for LSOA W01001823, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Sandringham Road

How this home sits against its street.

26
graded homes
56
average score
D
most common grade
+17.0
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.