104 Brunswick Street, Cardiff CF5 1LL

Mid-Terrace flat · Built before 1900 · 56 m² · Boiler and radiators, mains gas

Upgrade Plan

Get upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Heating controls(optional, beyond D)£400typical£2715.1 yrs+1.1 pts
Cavity wall insulation(optional, beyond D)£1,000typical£5418.4 yrs+2.4 pts
Band A condensing boiler(optional, beyond D)£2,600typical£4550+ yrs+1.9 pts
Solid wall insulation(optional, beyond D)£9,000typical£7950+ yrs+3.4 pts
Double glazing(optional, beyond D)£3,500 – £4,900typical£2650+ yrs+1.1 pts

Grants verified 20 August 2026. Costs are the register’s indicative ranges, except where marked typical, which this certificate did not price and which are taken instead from comparable homes of the same type. 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

£1,195
per year at grade D
£964
per year at grade D

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2009, states £720 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

20 April 2022£195,000
26 March 2020£159,000
8 April 2005£105,000
31 March 2005£105,000

Estimated today: £199,921 HPI-indexed estimate, not a valuation

Brunswick Street: 179 sales since 1995 · £257,512 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.

12.8
crimes a month
141
in the last 12 months
Shoplifting
most common · 25% of the total

Police.uk street-level data for LSOA W01001710, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Brunswick Street

How this home sits against its street.

89
graded homes
61.3
average score
D
most common grade
-4.3
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.