Old Dairy Farm, Bentham Lane, Bentham, Purton, Swindon, SN5 4HZ
About Old Dairy Farm
Old Dairy Farm is a detached house in Purton, Swindon, Swindon (SN5 4HZ). It has a recorded floor area of 207 m² (around 2228 sq ft), construction records dating it to before 1900 and council tax band G. The latest certificate (October 2021) shows an F (score 27), near the bottom of the EPC scale. The rating has held steady at F across 2 certificates since June 2009. Between certificates, hot-water efficiency went from Very Poor to Poor; while roof efficiency dropped from Average to Poor. The recommended improvements would lift it to C (score 74), a 3-band jump.
At 207 m² the property is well over the postcode median (159 m² across 7 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. Today's modelled estimate of £1,059,000 is 12.1% above the 2022 sale price. Last sale on file: £945,000 in February 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at Old Dairy Farm
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
Old Dairy Farm sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency improved
Planning history
- May 2022RenovationAmendmentIn report
Outbuildings proposed elevations ref.21.1503/06A corrects North East Elevation and South East Elevation to show unaltered roof pitch to Stable Building and altered roof pitch and cladding to Garage Building
- Documents
- 5 docs on file
- Reference
- PL/2022/03909
- May 2022ExtensionFullIn report
Extension: Part single, part two storey
One- and two-storey extensions to the dwelling; and repairs/alterations/remodelling of the former stables and garage outbuildings
- Documents
- 15 docs on file
- Reference
- PL/2022/02577
We flagged 1 thing worth checking at Old Dairy Farm
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
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£1,059,000
Modelled from EPC, postcode comparables.
£945,000
Recorded with HM Land Registry.
Sales timeline
17 February 2022Most recent
£945,000
Median price across the last 5 sales in SN5 4HZ: £790,000 (2023–2013).
Nearby sales in SN5 4HZ
Bentham House Farm, Bentham Lane, Bentham, Purton, Swindon, SN5 4HZ
Sold Aug 2023
£1,140,000Bentham House, Bentham Lane, Bentham, Purton, Swindon, SN5 4HZ
Sold Feb 2022
£1,825,0006 Bentham Lane, Bentham, Purton, Swindon, SN5 4HZ
Sold Jan 2018
£488,0005 Bentham Lane, Bentham, Purton, Swindon, SN5 4HZ
Sold Aug 2000
£106,000
Everything we know about Old Dairy Farm, 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 Bentham Lane homes
EPC Rating for Old Dairy Farm lags the street by a wide margin.
Price per m²
£4,565
Street avg £5,016
Floor Area
207 m²
Street avg 222 m²
Habitable Rooms
10 rooms
Street avg 6 rooms
CO₂ Emissions
19.0 t/year
Street avg 8.7 t/year
Similar properties nearby
1 Church Street, Purton
SN5 4DS
1 Hayes Knoll, Purton Stoke
SN5 4JJ
1 Clardon Lane, Purton
SN5 4HN
1 Cedar Glen, Purton
SN5 4BJ
1 Kingsacre, Hyde Lane, Purton
SN5 4DU
1 Little Ground, Purton
SN5 4GS
1 Jewels Ash, Purton
SN5 4DW
1 Bamford Close, Purton
SN5 4HR
The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.4 km
Bentham Turn — bus stop.
Closest school
2.2 km
St Mary's Church of England Primary School & Nursery, Purton. 3 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
42.9dB

Night-time· 23:00 – 07:00
37.0dB