4 Trevor Square, Llangollen LL20 8SH

End-Terrace house · Built before 1900 · 74 m² · Owner-Occupied · Boiler and radiators, mains gas

Upgrade Plan

EB for £25,075 · £8,358 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Heating controls£350 – £450£577.0 yrs+2.2 pts · reaches D
Flat roof insulation£850 – £1,500£1189.9 yrs+4.5 pts
Solar photovoltaic panels£3,500 – £5,500£14431.2 yrs+5.5 pts
Floor insulation£4,000 – £6,000£15632.1 yrs+5.9 pts · reaches C
Solar water heating£4,000 – £6,000£12141.3 yrs+4.6 pts
Solid wall insulation£4,000 – £14,000£16950+ yrs+6.4 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

£1,949
per year at grade E
£1,184
per year at grade B

The full plan saves £765 a year — a 3.1% annual return on £25,075.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2025, states £1,595 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

4 November 2025£149,950
18 July 2012£115,000
11 February 2011£106,000
12 May 2005£88,000
6 June 1997£20,000

Estimated today: £150,094 HPI-indexed estimate, not a valuation

Trevor Square: 9 sales since 1995 · £124,150 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Weston Rhyn Primary SchoolPrimary5.9 mi
Selattyn CofE Primary SchoolPrimary6.0 mi
St Martins School (3-16 Learning Community)All-through7.2 miProgress 8 -0.52 · well below average (2023/24)
The Marches SchoolSecondary9.3 miProgress 8 -0.29 · 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.

10.6
crimes a month
117
in the last 12 months
Violence and sexual offences
most common · 44% of the total

Police.uk street-level data for LSOA W01000209, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Trevor Square

How this home sits against its street.

3
graded homes
57.7
average score
D
most common grade
-4.7
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.