20 Devon Drive, Diggle, Oldham OL3 5PP

Detached house · Built 1967-1975 · 112 m² · Owner-Occupied · Boiler and radiators, mains gas

Upgrade Plan

CB for £10,500 · £10,500 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Floor insulation£800 – £1,200£6315.8 yrs+4.1 pts
Solar photovoltaic panels£3,500 – £5,500£5950+ yrs+3.8 pts
Solar water heating£4,000 – £6,000£4950+ yrs+3.2 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

£1,699
per year at grade C
£1,528
per year at grade B

The full plan saves £171 a year — a 1.6% annual return on £10,500.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2024, states £1,484 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

25 July 2025£420,000
16 December 2022£385,000

Estimated today: £433,440 HPI-indexed estimate, not a valuation

Devon Drive: 20 sales since 1995 · £401,964 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Diggle SchoolPrimary0.3 mi
Delph Primary SchoolPrimary1.0 mi
St Chad's Church of England Primary SchoolPrimary1.0 mi
Saddleworth SchoolSecondary0.3 miNot in the KS4 performance tables
Waterhead AcademySecondary3.1 miProgress 8 -0.72 · well below average (2023/24)
Mossley Hollins High SchoolSecondary3.5 miNot in the KS4 performance tables

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.

Devon Drive

How this home sits against its street.

12
graded homes
57.6
average score
D
most common grade
+13.4
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.