Maestwrog, Upper Llandwrog, Caernarfon LL54 7RB

Semi-Detached house · Built before 1900 · 125 m² · Owner-Occupied · Electric storage heaters

Upgrade Plan

FB for £22,065 · £5,516 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Hot water cylinder insulation£30£2200.1 yrs+6.2 pts
High-retention storage heaters£3,000 – £0£5073.0 yrs+14.3 pts · reaches E
Low energy lighting£35£113.1 yrs+0.3 pts
Floor insulation£6,000 – £0£25711.7 yrs+7.3 pts · reaches D
Solar water heating£6,000 – £0£20015.0 yrs+5.6 pts
Solar photovoltaic panels£8,000 – £0£23816.8 yrs+6.7 pts · reaches C
Solid wall insulation£14,000 – £0£27825.2 yrs+7.9 pts
Double glazing£6,500 – £500£9337.6 yrs+2.6 pts · reaches B
Wind turbine(optional, beyond B)£25,000 – £0£21350+ yrs+6.0 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

£4,253
per year at grade F
£2,236
per year at grade B

The full plan saves £1,804 a year — a 8.2% annual return on £22,065.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2018, states £2,476 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

No sale recorded for this address 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.

8.2
crimes a month
82
in the last 12 months
Violence and sexual offences
most common · 33% of the total

Police.uk street-level data for LSOA W01000112, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.