3 Rowen Cottages, Y Felinheli LL56 4RX

End-Terrace house · Built 1900-1929 · 71 m² · Owner-Occupied · Room heaters, mains gas

Upgrade Plan

EB for £26,808 · £8,936 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Draughtproofing£80 – £120£891.1 yrs+3.9 pts
Hot water cylinder insulation£15 – £400£902.3 yrs+3.9 pts
Floor insulation£800 – £1,200£1059.5 yrs+4.6 pts · reaches D
Change of heating system£3,000 – £7,000£30116.6 yrs+13.1 pts · reaches C
Solar water heating£4,000 – £6,000£8250+ yrs+3.6 pts
Solar photovoltaic panels£5,000 – £8,000£9850+ yrs+4.3 pts
Solid wall insulation£4,000 – £14,000£11450+ yrs+5.0 pts · reaches B
Double glazing(optional, beyond B)£3,300 – £6,500£3850+ yrs+1.7 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

£1,679
per year at grade E
£762
per year at grade B

The full plan saves £879 a year — a 3.3% annual return on £26,808.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2016, states £1,172 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

29 July 2016£70,000

Estimated today: £105,403 HPI-indexed estimate, not a valuation

Rowen Cottages: 2 sales since 1995

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.

9.9
crimes a month
109
in the last 12 months
Violence and sexual offences
most common · 53% of the total

Police.uk street-level data for LSOA W01000119, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Rowen Cottages

How this home sits against its street.

5
graded homes
54
average score
D
most common grade
-9.0
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.