12 Llain Delyn, Gwalchmai, Holyhead LL65 4SU

Detached bungalow · Built 1967-1975 · 113 m² · Owner-Occupied · Air source heat pump, radiators, electric

Upgrade Plan

CB for £10,655 · £10,655 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Loft insulation£100 – £350£1072.1 yrs+2.0 pts
Low energy lighting£30£103.1 yrs+0.2 pts
Heating controls£350 – £450£824.9 yrs+1.5 pts
Floor insulation£4,000 – £6,000£22422.3 yrs+4.1 pts
Solar water heating£4,000 – £6,000£17428.7 yrs+3.2 pts · reaches B

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

£2,452
per year at grade C
£1,855
per year at grade B

The full plan saves £597 a year — a 5.6% annual return on £10,655.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2015, states £1,334 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

1 August 2014£116,500
15 December 2009£153,500

Estimated today: £200,692 HPI-indexed estimate, not a valuation

Llain Delyn: 9 sales since 1995 · £199,333 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.

8.5
crimes a month
94
in the last 12 months
Violence and sexual offences
most common · 44% of the total

Police.uk street-level data for LSOA W01000009, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Llain Delyn

How this home sits against its street.

21
graded homes
77.9
average score
A
most common grade
-6.9
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.