Old Mill House, Kiln Green, Diggle, Oldham, OL3 5JY
About Old Mill House
Old Mill House is a detached house in Diggle, Oldham, Oldham (OL3 5JY). It has a recorded floor area of 238 m² (around 2562 sq ft), construction records dating it to before 1900 and council tax band G. The latest certificate (September 2023) shows an E (score 44), well below the UK norm with real room to improve. Earlier certificates rated it D (September 2012); the latest reading is one band lower. Between certificates, lighting went from Good to Very Good; while wall efficiency dropped from Good to Very Poor and window efficiency dropped from Good to Average. The recommended improvements would lift it to C (score 77), a 2-band jump.
It hasn't traded since August 1999, a hold of 27 years that's notably long for the area. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. At 238 m² the property is well over the postcode median (97 m² across 12 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 83% of similar EPCs). Today's modelled estimate of £657,000 sits 179.6% above the 1999 sale of £235,000. On a £-per-square-foot basis, the last sale (£92/sq ft) was about 61% below the postcode norm. 9 planning records sit against the property, 5 approved, 2 refused. Past consents include an extension and subdivision, meaningful when judging how the property has evolved.
Everything you need to know about Old Mill House
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
Old Mill House's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Certificate validity
Valid until 16 September 2033
Property Improvements
Changes detected from historical EPC data
Heat pump installed, significantly improving energy efficiency
Changed to a more efficient fuel source
Heating controls upgraded for better temperature management
More low energy lighting installed
Solar PV panels (50 kWp) installed
Floor insulation added or improved
Heating system changed
Connected to mains gas supply
Heating controls changed
Hot water system changed
Solar PV panels (40 kWp) installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has been extended more than once, we believe a Level 3 building survey should be considered.
From £1,155 · Includes VAT
Planning history
A recent planning application at Old Mill House was refused — worth checking the council file.
9 applications on record at Old Mill House, Kiln Green, Diggle, Oldham, OL3 5JY
- Feb 2015SubdivisionFullOutcome in report
1. Subdivision of existing building into 4 x dwellings including internal and external alterations and additions. 2. Convert existing barn building to form 1 no. new dwelling, including adding a new first floor level. 3. Associated site works to provide access for the above, including new vehicle access track from existing farm vehicle entry to south of site.
- Documents
- 21 docs on file
- Reference
- PA/336260/14
- More recent applications — locked
- ConditionsJun 2023Decision
- OutbuildingSept 2021Decision
+ 6 more applications in the report
Unlock Old Mill House, Kiln Green, Diggle, Oldham, OL3 5JY's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (8 on record)
- All 9 applications on this property in full, plus 1 notable nearby
- The 88 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
Old Mill House has been held in the same hands since before 2000.
£657,000
Modelled from EPC, postcode comparables.
£235,000
Recorded with HM Land Registry.
Sales timeline
26 August 1999Most recent
£235,000
Median price across the last 5 sales in OL3 5JY: £325,000 (2025–2021).
Nearby sales in OL3 5JY
7 Shaw Lee, Kiln Green, Diggle, Oldham, OL3 5JY
Sold Jun 2025
£210,0002 Shaw Lee, Kiln Green, Diggle, Oldham, OL3 5JY
Sold Mar 2025
£360,000Waterside Cottage, Kiln Green, Diggle, Oldham, OL3 5JY
Sold Aug 2024
£325,000Hillside Cottage, Kiln Green, Diggle, Oldham, OL3 5JY
Sold Aug 2022
£680,0006 Shaw Lee, Kiln Green, Diggle, Oldham, OL3 5JY
Sold Aug 2021
£190,000
Everything you need to know about Old Mill House
The true value, the hidden risks and the full sale history, in one report.
Pick your report · from £14.99
One time fee only - money back guarantee

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The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
1/mo
Steady year-on-year across the wider district.
Nearest stop
0.4 km
Sunfield Lane — bus stop.
Closest school
0.3 km
Diggle School. 5 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
47.1dB

Night-time· 23:00 – 07:00
37.3dB






