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Get started21 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.
Sale prices here have outpaced Swindon HPI: 6.6% per year against 0% for the wider region. Today's modelled estimate of £432,000 is 49% above the 2014 sale price. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. 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.
21 Bydemill Gardens sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
21 Bydemill Gardens has an approved single-storey rear extension on the planning record.
Extension: Single storey · Rear of property
Certificate of lawfulness (Proposed) for the erection of a single storey rear extension.
21 Bydemill Gardens has more than doubled in price since the earliest registered sale in 1998.
£432,000
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.
21 Bydemill Gardens is notably below the street on epc rating.
Price per m²
£2,214
Street avg £3,124
Floor Area
131 m²
Street avg 124 m²
Habitable Rooms
8 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
47.6dB

28 March 2014Most recent
£289,995
+176.2%over 15 years3 April 1998
£105,000
Median price across the last 5 sales in SN6 7BS: £410,000 (2025–2024).
Street avg 6 rooms
CO₂ Emissions
11.0 t/year
Street avg 4.9 t/year
SN6 7BN
Bydemill Gardens — bus stop.
Closest school
0.6 km
Highworth Warneford School. 4 schools nearby.
Night-time· 23:00 – 07:00
39.3dB
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