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Get started11 Back Street is a three-bedroom semi-detached house in Ashton Keynes, Swindon, Swindon (SN6 6PD). It has a recorded floor area of 115 m² (around 1238 sq ft), construction records dating it to before 1900 and council tax band D. The latest certificate (December 2021) shows an E (score 46), well below the UK norm with real room to improve. When first surveyed in March 2011 the rating was F, the property has climbed 1 band since. Between certificates, roof efficiency went from Average to Good, window efficiency went from Average to Good and lighting went from Very Poor to Very Good; while hot-water efficiency dropped from Poor to Very Poor. The recommended improvements would lift it to C (score 80), a 2-band jump. Main heating runs on house coal. Other recorded features include a self-contained annexe. Period features are noted in the property record.
Sale prices here have outpaced Swindon HPI: 5.8% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£504/sq ft) was about 58.9% above the typical sold price in the postcode. At 115 m² it sits well below the postcode median (194 m² across 8 EPCs), making it one of the more compact homes locally. 9 planning records sit against the property, 6 approved, 1 refused. Past consents include a loft conversion, an extension, a porch and tree works, meaningful when judging how the property has evolved. Most recent transfer: March 2023 at £624,000.
11 Back Street's carbon output runs well above what efficient homes in the postcode produce.
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
Raising eaves of the existing garage/annex building by 0.5 metres, to provide room within the roof space, and installation of roof light.
11 Back Street has more than doubled in price since the earliest registered sale in 2006.
£625,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.8% per year over 17 years.
£624,000
Growth on file: 5.8% per year over 17 years.
11 Back Street is notably below the street on floor area.
Price per m²
£5,426
Street avg £5,120
Floor Area
115 m²
Street avg 191 m²
Habitable Rooms
5 rooms
Street avg 8 rooms
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
0.2 km

Daytime· 07:00 – 23:00
45.4dB

Changes detected from historical EPC data
Fuel source changed
Heating controls changed
Hot water efficiency decreased
Window efficiency improved
Roof insulation improved
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Extension: Single storey · Rear of property
Proposed rear extension single storey.
7 more applications for this property
Join to see all planning history.
27 March 2023Most recent
£624,000
+183.6%over 10 years11 January 2013
£220,000
-10.2%over 6 years11 August 2006
£245,000
Median price across the last 5 sales in SN6 6PD: £1,150,000 (2025–2021).
Pilgrim Cottage Back Street Ashton Keynes Swindon
Sold Feb 2025
10 Back Street Ashton Keynes Swindon
Sold Sept 2024
Mill Brook Cottage Back Street Ashton Keynes Swindon
Sold Apr 2023
Vine View Back Street Ashton Keynes Swindon
Sold Sept 2022
Cleveland House Back Street Ashton Keynes Swindon
Sold Sept 2021
CO₂ Emissions
11.0 t/year
Street avg 9.8 t/year
SN6 6HL
Post Office — bus stop.
Closest school
0.4 km
Ashton Keynes Church of England Primary School. 2 schools nearby.
Flood risk
Medium
From the Environment Agency.
Night-time· 23:00 – 07:00
37.6dB
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