7 High Street, Caernarfon LL55 1RN

Mid-Terrace maisonette · Built before 1900 · 109 m² · Boiler and radiators, mains gas

Upgrade Plan

Get upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Low energy lighting(optional, beyond E)£15 – £35typical£55.0 yrs+0.2 pts
Cavity wall insulation(optional, beyond E)£1,000typical£8611.6 yrs+2.6 pts
Double glazing(optional, beyond E)£3,500 – £4,900typical£4250+ yrs+1.3 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

£1,973
per year at grade E
£1,840
per year at grade E

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2010, states £1,222 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

16 September 2021£160,000
18 July 2008£162,235

Estimated today: £167,398 HPI-indexed estimate, not a valuation

High Street: 30 sales since 1995 · £122,929 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.

35.2
crimes a month
387
in the last 12 months
Violence and sexual offences
most common · 39% of the total

Police.uk street-level data for LSOA W01000111, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

High Street

How this home sits against its street.

25
graded homes
56
average score
D
most common grade
-7.0
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.