3 Lon y Gelli, Wrexham LL12 8JZ

Detached house · Built 1976-1982 · 111 m² · Owner-occupied · Boiler and radiators, mains gas

Upgrade Plan

EC for £10,660 · £5,330 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Hot water cylinder insulation£200 – £400£1771.7 yrs+5.3 pts
Loft insulation£100 – £350£992.3 yrs+3.0 pts
Floor insulation£800 – £1,200£2074.8 yrs+6.2 pts · reaches D
Heating controls£350 – £450£765.3 yrs+2.3 pts
Cavity wall insulation£500 – £1,500£1556.5 yrs+4.6 pts
Low energy lighting£135£914.9 yrs+0.3 pts
Band A condensing boiler£2,200 – £3,000£12720.4 yrs+3.8 pts
Solar water heating£4,000 – £6,000£16131.1 yrs+4.8 pts · reaches C
Solar photovoltaic panels(optional, beyond C)£9,000 – £14,000£19250+ yrs+5.7 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

£2,468
per year at grade E
£1,265
per year at grade C

The full plan saves £1,011 a year — a 9.5% annual return on £10,660.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2014, states £1,716 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

23 April 2021£261,000
9 May 2017£190,000
16 December 2002£144,500

Estimated today: £331,234 HPI-indexed estimate, not a valuation

Lon Y Gelli: 4 sales since 1995

Schools nearby

The schools’ own performance — Progress 8 shows value added, not just raw results.

SchoolPhaseDistanceProgress
Farndon Primary SchoolPrimary4.6 mi
Dodleston CofE Primary SchoolPrimary5.3 mi
Shocklach Oviatt CofE Primary SchoolPrimary6.3 mi
The Catholic High School, ChesterSecondary8.5 miProgress 8 -0.08 · average (2023/24)
Queen's Park High SchoolSecondary8.9 miProgress 8 -0.04 · average (2023/24)
Chester International SchoolSecondary8.9 miProgress 8 -1.20 · well below average (2023/24)

Schools from the DfE register, performance from the KS4 performance tables. Progress 8 is a GCSE measure, so primaries have none. Distance is straight-line from the postcode, not a catchment: admission is decided by the school, not by us.

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.

2.9
crimes a month
20
in the last 12 months
Violence and sexual offences
most common · 35% of the total

Police.uk street-level data for LSOA W01000387, 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.