2 Thomas Street, Llanberis, Caernarfon LL55 4HW

Mid-Terrace house · Pre-1900 · Boiler and radiators, smokeless fuel

Upgrade Plan

GF for £17,183 · £17,183 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Low energy lighting£20 – £45typical£146.6 yrs+0.0 pts
Heating controls£400typical£650+ yrs+0.2 pts
Change of heating system£5,000typical£4550+ yrs+1.8 pts
Solar water heating£5,000typical£1250+ yrs+0.5 pts
Solar photovoltaic panels£4,500 – £9,000typical£1550+ yrs+0.6 pts · reaches F
Solid wall insulation(optional, beyond F)£9,000typical£1750+ yrs+0.7 pts
Double glazing(optional, beyond F)£1,200 – £4,900typical£650+ yrs+0.2 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

£1,265
per year at grade G
£1,163
per year at grade F

The full plan saves £79 a year — a 0.5% annual return on £17,183.

Energy costs as modelled on the certificate, not a bill. This fuel has too few recent certificates to restate at today's prices.

Sold prices

29 July 2011£85,000
11 February 2005£85,000
4 April 1997£24,000

Estimated today: £133,773 HPI-indexed estimate, not a valuation

Thomas Street: 10 sales since 1995 · £145,333 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.

14.6
crimes a month
146
in the last 12 months
Violence and sexual offences
most common · 34% of the total

Police.uk street-level data for LSOA W01000081, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Thomas Street

How this home sits against its street.

4
graded homes
45.3
average score
D
most common grade
-27.3
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.