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Get started15 John Alder Close is a four-bedroom detached house in Chiseldon, Swindon, Swindon (SN4 0JL). It has a recorded floor area of 118 m² (around 1270 sq ft), construction records dating it to 1996-2002 and council tax band E. The latest certificate (June 2015) shows a C (score 69), just inside the C band. The recommended improvements would push it to B (score 83). The latest certificate is from June 2015, so improvements made since then won't be reflected. Other recorded features include notable views.
Sale prices here have outpaced Swindon HPI: 2.1% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£335/sq ft) was about 46.6% above the typical sold price in the postcode. At 118 m² the property is well over the postcode median (87 m² across 11 EPCs), placing it in the larger end of the local stock. Most recent transfer was August 2025 at £425,000 — fresh data.
This certificate is over 10 years old and is no longer valid.Expired 12 Jun 2025
15 John Alder Close valuation sits well clear of the typical sold price in this postcode.
£409,000
Modelled from EPC, postcode comparables and a sale-price growth of 2.1% per year over 22 years.
£425,000
Growth on file: 2.1% per year over 22 years.
On years held, 15 John Alder Close runs well behind the street norm.
Price per m²
£3,602
Street avg £3,167
Floor Area
118 m²
Street avg 118 m²
Habitable Rooms
7 rooms
Street avg 6 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

18 August 2025Most recent
£425,000
+31.6%over 8 years20 February 2017
£323,000
+20.5%over 13 years14 August 2003
£268,000
Median price across the last 5 sales in SN4 0JL: £545,000 (2025–2021).
CO₂ Emissions
4.3 t/year
Street avg 3.6 t/year
SN4 0JA
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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