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Get started11 John Alder Close is a detached house in Chiseldon, Swindon, Swindon (SN4 0JL). It has a recorded floor area of 190 m² (around 2045 sq ft), construction records dating it to 2003-2006 and council tax band F. The latest certificate (August 2023) shows a C (score 70).
Sale prices here have outpaced Swindon HPI: 3.1% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£288/sq ft) was about 22.6% above the typical sold price in the postcode. At 190 m² the property is well over the postcode median (87 m² across 11 EPCs), placing it in the larger end of the local stock. One planning record on file: an extension approved in 2010. Past consents include an extension, meaningful when judging how the property has evolved. Sold June 2024 for £590,000.
11 John Alder Close has an approved single-storey rear extension on the planning record.
Extension: Single storey · Rear of property
Erection of a single storey rear extension .
11 John Alder Close valuation sits well clear of the typical sold price in this postcode.
£599,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.1% per year over 21 years.
£590,000
Growth on file: 3.1% per year over 21 years.
On floor area, 11 John Alder Close stands well clear of the street.
Price per m²
£3,105
Street avg £3,223
Floor Area
190 m²
Street avg 110 m²
Habitable Rooms
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
0.1 km

Daytime· 07:00 – 23:00
46.3dB

28 June 2024Most recent
£590,000
+87.3%over 20 years2 October 2003
£315,000
Median price across the last 5 sales in SN4 0JL: £425,000 (2025–2021).
Street avg 6 rooms
CO₂ Emissions
5.1 t/year
Street avg 3.6 t/year
SN4 0FT
Patriots Arms — bus stop.
Closest school
0.8 km
Chiseldon Primary & Nursery School. 2 schools nearby.
Night-time· 23:00 – 07:00
38.6dB
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