Windmill House, Brafferton, Darlington DL1 3NN

Detached house · Built 1900-1929 · 158 m² · Rented (Private) · Boiler and radiators, oil

Upgrade Plan

DB for £40,500 · £20,250 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Flat roof insulation£900 – £1,200£9910.6 yrs+3.8 pts
Cavity wall insulation£900 – £1,500£9812.3 yrs+3.8 pts
Floor insulation£5,000 – £10,000£13150+ yrs+5.1 pts
Solid wall insulation£7,500 – £11,000£14250+ yrs+5.5 pts · reaches C
Solar photovoltaic panels£8,000 – £10,000£12150+ yrs+4.7 pts
Wind turbine£5,000 – £20,000£10950+ yrs+4.2 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

£2,248
per year at grade D
£1,548
per year at grade B

The full plan saves £700 a year — a 1.7% annual return on £40,500.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2025, states £2,507 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

No sale recorded for this address since 1995.

Schools nearby

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

SchoolPhaseDistanceProgress
Aycliffe Village Primary and Nursery SchoolPrimary0.6 mi
Sugar Hill Primary SchoolPrimary1.9 mi
Vane Road Primary SchoolPrimary2.2 mi
UTC South DurhamSecondary1.1 miProgress 8 -0.99 · well below average (2023/24)
Woodham AcademySecondary2.4 miProgress 8 +0.09 · average (2023/24)
Greenfield AcademySecondary2.8 miProgress 8 -0.50 · 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.

11.7
crimes a month
129
in the last 12 months
Violence and sexual offences
most common · 35% of the total

Police.uk street-level data for LSOA E01020828, 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.