30 Patchway Crescent, Rumney, Cardiff CF3 4AH

Semi-Detached house · Built 1967-1975 · 127 m² · Owner-Occupied · Boiler and radiators, mains gas

Upgrade Plan

DC for £3,840 · £3,840 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Loft insulation£350£516.9 yrs+1.8 pts
Low energy lighting£40£58.6 yrs+0.2 pts
Heating controls£450£3911.6 yrs+1.4 pts
High-performance doors£2,500 – £500£8517.6 yrs+3.0 pts
Band A condensing boiler£3,000 – £0£6622.9 yrs+2.3 pts · reaches C
Floor insulation(optional, beyond C)£6,000 – £0£10728.1 yrs+3.8 pts
Solar water heating(optional, beyond C)£6,000 – £0£8336.2 yrs+2.9 pts
Solar photovoltaic panels(optional, beyond C)£8,000 – £0£9940.5 yrs+3.5 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

£1,709
per year at grade D
£1,175
per year at grade C

The full plan saves £245 a year — a 6.4% annual return on £3,840.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2015, states £1,183 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

28 August 2018£265,000
18 September 2015£214,680
30 June 2006£195,000
15 December 2003£168,000

Estimated today: £359,369 HPI-indexed estimate, not a valuation

Patchway Crescent: 34 sales since 1995 · £280,179 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.

17.6
crimes a month
194
in the last 12 months
Shoplifting
most common · 41% of the total

Police.uk street-level data for LSOA W01001806, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Patchway Crescent

How this home sits against its street.

19
graded homes
61.5
average score
D
most common grade
-0.5
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.