3 Byron Court, South Marston, Swindon, SN3 4TH
About 3 Byron Court
3 Byron Court is a four-bedroom detached house in South Marston, Swindon, Swindon (SN3 4TH). It has a recorded floor area of 125 m² (around 1345 sq ft), construction records dating it to 1976-1982 and council tax band E. The latest certificate (September 2016) shows a D (score 64), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 83), a 2-band jump.
One planning record on file: an extension approved in 2018. Past consents include an extension, meaningful when judging how the property has evolved. Today's modelled estimate of £522,000 is 21.4% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£320/sq ft) was about 49.1% above the typical sold price in the postcode. Last sold in February 2017, so it's been off the market for around 9 years.
What this property has
Inside
- Bedrooms4
- Dining roomYes
- Utility roomYes
- CloakroomYes
- EnsuiteYes
Outside
- Private gardenYes
- GarageDouble
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 14 Sept 2026
EPC Rating
Certificate validity
Expired on 14 September 2026
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Planning history
3 Byron Court has an approved single-storey side and rear extension on the planning record.
1 application on record at 3 Byron Court, South Marston, Swindon, SN3 4TH
- Nov 2018ExtensionFullOutcome in report
Extension: Single storey · Side and rear of property
Erection of a single storey side/rear extension.
- Documents
- 13 docs on file
- Reference
- S/HOU/18/1629
Unlock 3 Byron Court, South Marston, Swindon, SN3 4TH's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 9 notable nearby
- The 13 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
3 Byron Court valuation sits well clear of the typical sold price in this postcode.
£522,000
Modelled from EPC, postcode comparables.
£430,000
Recorded with HM Land Registry.
Sales timeline
23 February 2017Most recent
£430,000
Median price across the last 5 sales in SN3 4TH: £350,000 (2024–2002).
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The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
318/mo
Falling year-on-year across the wider district.
Nearest stop
0.1 km
Greenfields — bus stop.
Closest school
0.2 km
South Marston Church of England Primary School. 9 schools 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
43.5dB

Night-time· 23:00 – 07:00
36.5dB







