21 Bydemill Gardens, Highworth, Swindon, SN6 7BS
About 21 Bydemill Gardens
21 Bydemill Gardens is a three-bedroom detached house in Highworth, Swindon, Swindon (SN6 7BS). It has a recorded floor area of 131 m² (around 1410 sq ft), construction records dating it to 1967-1975 and council tax band E. The latest certificate (July 2016) shows an F (score 33), near the bottom of the EPC scale. Earlier certificates rated it C (January 2014); the latest reading is 3 bands lower. Between certificates, wall efficiency dropped from Good to Poor and roof efficiency dropped from Average to Very Poor. The recommended improvements would lift it to D (score 66), a 2-band jump. Main heating runs on oil. The latest certificate is from July 2016, so improvements made since then won't be reflected.
On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 1998–2014, sale prices on this property compounded at 6.6% per year. Today's modelled estimate of £437,000 sits 50.7% above the 2014 sale of £289,995. One planning record on file: an extension approved in 2014. Past consents include an extension, meaningful when judging how the property has evolved. On the market in March 2014 and unlisted since — roughly 12 years.
What this property has
Inside
- Bedrooms3
Everything you need to know about 21 Bydemill Gardens
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Energy performance
21 Bydemill Gardens sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 17 Jul 2026
EPC Rating
Certificate validity
Expired on 17 July 2026
Get a survey for this property
Level 3 Building Survey
Because the property has no mains gas supply, we believe a Level 3 building survey should be considered.
From £1,020 · Includes VAT
Planning history
21 Bydemill Gardens has an approved single-storey rear extension on the planning record.
1 application on record at 21 Bydemill Gardens, Highworth, Swindon, SN6 7BS
- Jun 2014ExtensionOutlineOutcome in report
Extension: Single storey · Rear of property
Certificate of lawfulness (Proposed) for the erection of a single storey rear extension.
- Documents
- 9 docs on file
- Reference
- S/LDP/14/0666
Unlock 21 Bydemill Gardens, Highworth, Swindon, SN6 7BS'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- Every decision — granted, refused or withdrawn (1 on record)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 12 notable nearby
- The 9 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
21 Bydemill Gardens has more than doubled in price since the earliest registered sale in 1998.
£437,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.6% per year over 16 years.
£289,995
Growth on file: 6.6% per year over 16 years.
Sales timeline
28 March 2014Most recent
£289,995
+176.2%over 15 years2 April 1998
£105,000
Median price across the last 5 sales in SN6 7BS: £410,000 (2025–2024).
Nearby sales in SN6 7BS
28 Bydemill Gardens, Highworth, Swindon, SN6 7BS
Sold Jul 2025
£415,0001 Bydemill Gardens, Highworth, Swindon, SN6 7BS
Sold Mar 2025
£410,00042 Bydemill Gardens, Highworth, Swindon, SN6 7BS
Sold Feb 2025
£390,00043 Bydemill Gardens, Highworth, Swindon, SN6 7BS
Sold Dec 2024
£425,00023 Bydemill Gardens, Highworth, Swindon, SN6 7BS
Sold Jul 2024
£380,000
Versus other Bydemill Gardens homes
21 Bydemill Gardens is notably below the street on epc rating.
Price per m²
£2,214
Street avg £2,995
Floor Area
131 m²
Street avg 126 m²
Habitable Rooms
8 rooms
Street avg 6 rooms
CO₂ Emissions
11.0 t/year
Street avg 4.9 t/year
Everything you need to know about 21 Bydemill Gardens
The true value, the hidden risks and the full sale history, in one report.
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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
86/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Bydemill Gardens — bus stop.
Closest school
0.6 km
Highworth Warneford School. 4 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
47.6dB

Night-time· 23:00 – 07:00
39.3dB






