233 Marlborough Road, Swindon, SN3 1NN
About 233 Marlborough Road
233 Marlborough Road is a four-bedroom detached house in Swindon (SN3 1NN). It has a recorded floor area of 148 m² (around 1593 sq ft), construction records dating it to 1930-1949 and council tax band F. The latest certificate (April 2024) shows a D (score 63), on the cusp of jumping into the C band. When first surveyed in November 2008 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Good to Very Good, hot-water efficiency went from Poor to Good and lighting went from Poor to Very Good. The recommended improvements would push it to C (score 79).
One planning record on file: an extension approved in 2026. Past consents include an extension and a porch, meaningful when judging how the property has evolved. On a £-per-square-foot basis, the last sale (£449/sq ft) was about 73.2% above the typical sold price in the postcode. At 148 m² it's 20.2% smaller than the typical home in the postcode (186 m² median across 14 EPCs). Sold August 2024 for £715,000.
What this property has
Inside
- Bedrooms4
- Bathrooms2
Energy performance
233 Marlborough Road's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
Loft insulation upgraded to recommended levels
More low energy lighting installed
Get a survey for this property
Level 2 HomeBuyer Report
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Planning history
1 application on record at 233 Marlborough Road, Swindon, SN3 1NN
- Apr 2026PorchFullOutcome in report
Erection of Proposed first floor rear extension, Ground floor rear extension, Re-build of side extension and new front porch.
Extension- Documents
- 11 docs on file
- Reference
- S/HOU/26/0269
Unlock 233 Marlborough Road, Swindon, SN3 1NN'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- Every decision — granted, refused or withdrawn (1 on record)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 3 notable nearby
- The 11 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
233 Marlborough Road valuation sits well clear of the typical sold price in this postcode.
£765,000
Modelled from EPC, postcode comparables.
£715,000
Recorded with HM Land Registry.
Sales timeline
22 August 2024Most recent
£715,000
Median price across the last 5 sales in SN3 1NN: £510,000 (2025–2019).
Nearby sales in SN3 1NN
Versus other Marlborough Road homes
Years Held for 233 Marlborough Road lags the street by a wide margin.
Price per m²
£4,831
Street avg £3,265
Floor Area
148 m²
Street avg 185 m²
Habitable Rooms
8 rooms
Street avg 8 rooms
CO₂ Emissions
6.4 t/year
Street avg 7.6 t/year
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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
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Coate Hill Top — bus stop.
Closest school
0.4 km
Lawn Primary and Nursery School. 24 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
49.9dB

Night-time· 23:00 – 07:00
41.3dB







