1 Bryncir Terrace, Penmorfa, Porthmadog LL49 9RY

End-Terrace house · Built before 1900 · 75 m² · Boiler and radiators, LPG

Upgrade Plan

GF for £18,123 · £18,123 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Cavity wall insulation£100 – £300£882.3 yrs+2.3 pts
Low energy lighting£23£54.5 yrs+0.1 pts
Heating controls£350 – £450£439.3 yrs+1.1 pts
Band A condensing boiler£1,500 – £3,500£7234.5 yrs+1.9 pts
Solar water heating£4,000 – £6,000£9250+ yrs+2.4 pts
Solid wall insulation£5,500 – £14,500£12850+ yrs+3.3 pts · reaches F
Solar photovoltaic panels(optional, beyond F)£11,000 – £20,000£10950+ yrs+2.8 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

£2,265
per year at grade G
£1,728
per year at grade F

The full plan saves £428 a year — a 2.4% annual return on £18,123.

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

1 June 2012£105,000

Estimated today: £168,032 HPI-indexed estimate, not a valuation

Bryncir Terrace: 15 sales since 1995 · £102,083 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.

3.7
crimes a month
22
in the last 12 months
Violence and sexual offences
most common · 45% of the total

Police.uk street-level data for LSOA W01000066, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Bryncir Terrace

How this home sits against its street.

8
graded homes
44.4
average score
D
most common grade
-33.4
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.