12 Trinity Road, Darlington DL3 7AS

Mid-Terrace house · Built before 1900 · 197 m² · Owner-occupied · Boiler and radiators, mains gas

Upgrade Plan

EC for £22,165 · £11,083 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Loft insulation£100 – £350£1751.3 yrs+3.1 pts
Low energy lighting£40£162.5 yrs+0.3 pts
Floor insulation£800 – £1,200£3672.7 yrs+6.6 pts · reaches D
Heating controls£350 – £450£1343.0 yrs+2.4 pts
Solid wall insulation£4,000 – £14,000£39722.7 yrs+7.1 pts
Solar photovoltaic panels£9,000 – £14,000£34033.8 yrs+6.1 pts · reaches C
Double glazing(optional, beyond C)£3,300 – £6,500£13336.9 yrs+2.4 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

£3,826
per year at grade E
£2,264
per year at grade C

The full plan saves £1,429 a year — a 6.4% annual return on £22,165.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2014, states £2,570 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

27 April 2012£285,000
27 September 1996£82,000

Estimated today: £411,408 HPI-indexed estimate, not a valuation

Trinity Road: 101 sales since 1995 · £160,231 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Reid Street Primary SchoolPrimary0.4 mi
St Augustine's Catholic Primary SchoolPrimary0.4 mi
Corporation Road Community Primary SchoolPrimary0.4 mi
Carmel CollegeSecondary0.9 miProgress 8 +0.38 · above average (2023/24)
St Aidan's Church of England AcademySecondary1.2 miProgress 8 -0.96 · well below average (2023/24)
Hummersknott AcademySecondary1.3 miProgress 8 -0.48 · 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.

5.8
crimes a month
52
in the last 12 months
Anti-social behaviour
most common · 31% of the total

Police.uk street-level data for LSOA E01035186, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Trinity Road

How this home sits against its street.

51
graded homes
81.2
average score
B
most common grade
-36.2
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.