Chelwood House, The Marsh, Wanborough, Swindon, SN4 0AR
About Chelwood House
Chelwood House is a detached house in Wanborough, Swindon, Swindon (SN4 0AR). It has a recorded floor area of 372 m² (around 4004 sq ft), construction records dating it to 2012 onwards and council tax band G. The latest certificate (July 2026) shows a C (score 76), near the top of the C band. The rating has held steady at C across 2 certificates since April 2016. Between certificates, lighting went from Average to Good; while wall efficiency dropped from Very Good to Good and window efficiency dropped from Good to Average. This certificate was lodged in the last six months, so the rating reflects current condition.
At 372 m² the property is well over the postcode median (157 m² across 14 EPCs), placing it in the larger end of the local stock. Across 2012–2017, sale prices on this property compounded at 1.4% per year. Today's modelled estimate of £1,294,000 is 17.6% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£275/sq ft) was about 30.3% above the typical sold price in the postcode. On the market in March 2017 and unlisted since — roughly 9 years. 2 planning records sit against the property, 1 approved, 1 refused.
Energy performance
Chelwood House's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Certificate validity
Valid until 13 July 2036
Property Improvements
Changes detected from historical EPC data
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property is a large detached home over 300m², we believe a Level 3 building survey should be considered.
From £1,645 · Includes VAT
Planning history
2 applications on record at Chelwood House, The Marsh, Wanborough, Swindon, SN4 0AR
- Mar 2021Loft ConversionOutlineOutcome in report
Certificate of lawfulness (Proposed) for the insertion of roof windows for loft conversion
- Documents
- 13 docs on file
- Reference
- S/LDP/21/0147
- More recent applications — locked
- OutbuildingJun 2021Decision
Unlock Chelwood House, The Marsh, Wanborough, Swindon, SN4 0AR's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (2 on record)
- All 2 applications on this property in full, plus 1 notable nearby
- The 19 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
Latest sale on Chelwood House was the highest on Land Registry record across the postcode.
£1,294,000
Modelled from EPC, postcode comparables and a sale-price growth of 1.4% per year over 5 years.
£1,100,000
Growth on file: 1.4% per year over 5 years.
Sales timeline
23 March 2017Most recent
£1,100,000
+7.3%over 4 years4 April 2012
£1,025,000
Median price across the last 5 sales in SN4 0AR: £347,500 (2023–2021).
Nearby sales in SN4 0AR
Farncombe, The Marsh, Wanborough, Swindon, SN4 0AR
Sold Jun 2023
£450,000Westfield Barn, The Marsh, Wanborough, Swindon, SN4 0AR
Sold May 2023
£30,000Marshside, The Marsh, Wanborough, Swindon, SN4 0AR
Sold Mar 2022
£347,5001 South View Cottages, The Marsh, Wanborough, Swindon, SN4 0AR
Sold Jun 2021
£300,000Nether Fenn, The Marsh, Wanborough, Swindon, SN4 0AR
Sold May 2021
£550,000
Versus other The Marsh homes
Chelwood House outperforms the street on floor area by a wide margin.
Price per m²
£2,957
Street avg £3,077
Floor Area
372 m²
Street avg 161 m²
Habitable Rooms
10 rooms
Street avg 6 rooms
CO₂ Emissions
8.9 t/year
Street avg 6.8 t/year
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The neighbourhood at a glance
Crime
117/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Marsh Cottage — bus stop.
Closest school
0.9 km
Wanborough Primary School. 12 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
51.3dB

Night-time· 23:00 – 07:00
44.7dB







