21 Dorset Avenue, Diggle, Oldham, OL3 5PL
About 21 Dorset Avenue
21 Dorset Avenue is a detached house in Diggle, Oldham, Oldham (OL3 5PL). It has a recorded floor area of 127 m² (around 1367 sq ft), construction records dating it to 1983-1990 and council tax band E. The latest certificate (June 2024) shows a C (score 71). The recommended improvements would push it to B (score 83).
A recent sale: £475,000 in January 2025. Its energy rating outperforms most of the postcode (better than 71% of similar EPCs). Across 2022–2025, sale prices on this property compounded at 1373.8% per year. On a £-per-square-foot basis, the last sale (£347/sq ft) was about 55.4% above the typical sold price in the postcode.
Know exactly what you're buying at 21 Dorset Avenue
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
EPC Rating
Planning history
21 Dorset Avenue has no planning applications on record.
Notable planning nearby
3applications of note in the surrounding area
We flagged 1 thing worth checking at 21 Dorset Avenue
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
21 Dorset Avenue has more than quadrupled in price since its earliest registered sale in 2022.
£503,000
Modelled from EPC, postcode comparables and a sale-price growth of 1373.8% per year over 2 years.
£475,000
Growth on file: 1373.8% per year over 2 years.
Sales timeline
10 January 2025Most recent
£475,000
+30945.8%over 2 years23 November 2022
£1,530
Median price across the last 5 sales in OL3 5PL: £1,125 (2023–2022).
Nearby sales in OL3 5PL
30 Dorset Avenue, Diggle, Oldham, OL3 5PL
Sold Mar 2023
£1,12532 Dorset Avenue, Diggle, Oldham, OL3 5PL
Sold Dec 2022
£1,08028 Dorset Avenue, Diggle, Oldham, OL3 5PL
Sold Nov 2022
£1,12524 Dorset Avenue, Diggle, Oldham, OL3 5PL
Sold Oct 2022
£1,08034 Dorset Avenue, Diggle, Oldham, OL3 5PL
Sold Oct 2022
£400,000
Everything we know about 21 Dorset Avenue, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Larger development activity nearby

Versus other Dorset Avenue homes
On price per m², 21 Dorset Avenue stands well clear of the street.
Price per m²
£3,740
Street avg £2,294
Floor Area
127 m²
Street avg 122 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
5.2 t/year
Street avg 5.8 t/year
Similar properties nearby
1 Clydesdale Rise, Diggle
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1 Cornwall Crescent, Diggle
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1 Chapel Street, Denshaw
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1 Ammons Way, Delph
OL3 5US
1 Cobblestones, Delph
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1 Coblers Hill, Delph
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The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Nearest stop
0.0 km
Dorset Avenue — bus stop.
Closest school
0.4 km
Diggle School. 5 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
48.8dB

Night-time· 23:00 – 07:00
38.5dB