39 Merrybent, Darlington DL2 2LF

Detached bungalow · Built 1930-1949 · 110 m² · Owner-Occupied · Boiler and radiators, oil

Upgrade Plan

EC for £8,400 · £4,200 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Loft insulation£100 – £350£1301.7 yrs+3.7 pts
Cavity wall insulation£500 – £1,500£2044.9 yrs+5.8 pts
Flat roof insulation£850 – £1,500£2085.7 yrs+5.9 pts · reaches D
Floor insulation£800 – £6,000£27312.4 yrs+7.8 pts
Band A condensing boiler£2,200 – £3,000£16815.5 yrs+4.8 pts · reaches C
Solar water heating(optional, beyond C)£4,000 – £6,000£21223.6 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

£2,532
per year at grade E
£1,336
per year at grade C

The full plan saves £984 a year — a 11.7% annual return on £8,400.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2025, states £2,220 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

15 June 2018£233,000
31 August 2012£219,950
22 May 2009£215,000
30 July 1999£93,000

Estimated today: £290,974 HPI-indexed estimate, not a valuation

Merrybent: 36 sales since 1995 · £421,625 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
High Coniscliffe CofE Primary SchoolPrimary1.2 mi
Mowden Junior SchoolPrimary1.5 mi
Mowden Infant SchoolPrimary1.6 mi
Hummersknott AcademySecondary1.4 miProgress 8 -0.48 · below average (2023/24)
Wyvern AcademySecondary1.4 miProgress 8 -0.52 · well below average (2023/24)
Carmel CollegeSecondary1.7 miProgress 8 +0.38 · above 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.

15.2
crimes a month
152
in the last 12 months
Violence and sexual offences
most common · 28% of the total

Police.uk street-level data for LSOA E01012334, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Merrybent

How this home sits against its street.

58
graded homes
51.2
average score
D
most common grade
-9.2
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.