Keynes House, The Derry, Ashton Keynes, Swindon, SN6 6PW
About Keynes House
Keynes House is a four-bedroom detached house in Ashton Keynes, Swindon, Swindon (SN6 6PW). It has a recorded floor area of 313 m² (around 3369 sq ft), construction records dating it to 1991-1995 and council tax band G. The latest certificate (April 2018) shows an E (score 53), well below the UK norm with real room to improve. When first surveyed in August 2011 the rating was F, the property has climbed 1 band since. Between certificates, window efficiency went from Very Poor to Good and lighting went from Poor to Very Good; while roof efficiency dropped from Very Good to Good and hot-water efficiency dropped from Average to Poor. The recommended improvements would lift it to C (score 69), a 2-band jump. Main heating runs on oil. Other recorded features include attached land beyond the plot.
At 313 m² the property is well over the postcode median (170 m² across 6 EPCs), placing it in the larger end of the local stock. 18 planning records sit against the property, 5 approved, 1 refused. Past consents include an extension, a loft conversion, a conservatory and tree works, meaningful when judging how the property has evolved. Across 2011–2022, sale prices on this property compounded at 1.9% per year. On a £-per-square-foot basis, the last sale (£490/sq ft) was about 50.6% above the typical sold price in the postcode. Sold July 2022 for £1,650,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
What this property has
Inside
- Bedrooms4
- Bathrooms3
- Dining roomYes
Outside
- Private gardenYes
- GarageDouble
- LandYes
Everything you need to know about Keynes House
The true value, the hidden risks and the full sale history, in one report.
Pick your report · every report is £14.99
One time fee only - money back guarantee

Energy performance
Keynes House's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency decreased
Single glazing replaced with double or better glazing
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property is a large detached home over 300m² and has no mains gas supply, we believe a Level 3 building survey should be considered.
From £1,795 · Includes VAT
Planning history
Planning history includes both a loft conversion and an extension — the classic family-home expansion.
18 applications on record at Keynes House, The Derry, Ashton Keynes, Swindon, SN6 6PW
1 live now- Feb 2006Tree WorksTreesOutcome in report
Tree Surgery Work to Tulip Tree and Ash Tree
- Reference
- N/05/02990/TCA
- More recent applications — locked
- OutlineOct 2025Decision
- New BuildMar 2025Decision
+ 15 more applications in the report
Unlock Keynes House, The Derry, Ashton Keynes, Swindon, SN6 6PW's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (17 on record)
- All 18 applications on this property in full, plus 4 notable nearby
- The 148 documents, officer reports & conditions
- What the pattern means for extending or converting here
One time fee only - money back guarantee
Sales history & valuation
Latest sale on Keynes House was the highest on Land Registry record across the postcode.
£1,665,000
Modelled from EPC, postcode comparables and a sale-price growth of 1.9% per year over 11 years.
£1,650,000
Growth on file: 1.9% per year over 11 years.
Sales timeline
31 July 2022Most recent
£1,650,000
+22.2%over 10 years11 November 2011
£1,350,000
Median price across the last 5 sales in SN6 6PW: £550,000 (2024–2014).
Nearby sales in SN6 6PW
14 The Derry, Ashton Keynes, Swindon, SN6 6PW
Sold Apr 2024
£545,00015 The Derry, Ashton Keynes, Swindon, SN6 6PW
Sold Mar 2021
£1,202,500Orpington House, The Derry, Ashton Keynes, Swindon, SN6 6PW
Sold Nov 2014
£767,50013 The Derry, Ashton Keynes, Swindon, SN6 6PW
Sold Oct 2014
£590,00011 The Derry, Ashton Keynes, Swindon, SN6 6PW
Sold Oct 2012
£315,000
Versus other The Derry homes
On floor area, Keynes House stands well clear of the street.
Price per m²
£5,272
Street avg £3,559
Floor Area
313 m²
Street avg 163 m²
Habitable Rooms
9 rooms
Street avg 7 rooms
CO₂ Emissions
14.0 t/year
Street avg 7.4 t/year
Everything you need to know about Keynes House
The true value, the hidden risks and the full sale history, in one report.
Pick your report · every report is £14.99
One time fee only - money back guarantee

Similar properties nearby
1 Dairy Farm, Gosditch, Ashton Keynes
SN6 6NZ
1 Courtfields, Latton
SN6 6EG
1 Ashfield, Ashton Keynes
SN6 6SD
1 Blakehill View, Malmesbury Road, Leigh
SN6 6RB
1 Chelworth Road, Cricklade
SN6 6HL
1 Calcutt Street, Cricklade
SN6 6AZ
1 Bailiffs Piece, Cricklade
SN6 6NE
1 Birch Glade, Park Place, Ashton Keynes
SN6 6PX
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
Happy Land — bus stop.
Closest school
0.4 km
Ashton Keynes Church of England Primary School. 1 school 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
49.7dB

Night-time· 23:00 – 07:00
42.3dB






