21 Colbourne Street, Swindon, SN1 2EQ
About 21 Colbourne Street
21 Colbourne Street is a four-bedroom mid-terrace house in Swindon (SN1 2EQ). It has a recorded floor area of 83 m² (around 893 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (September 2013) shows an E (score 39), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since May 2009. Between certificates, roof efficiency went from Very Poor to Average and lighting went from Poor to Very Good; while wall efficiency dropped from Poor to Very Poor and window efficiency dropped from Good to Average. The recommended improvements would lift it to C (score 73), a 2-band jump. Main heating runs on lpg. The latest certificate is from September 2013, so improvements made since then won't be reflected.
Held since November 2009 — that's 17 years off the open market, well above the local norm. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Across 1998–2009, sale prices on this property compounded at 7.7% per year. Today's modelled estimate of £235,000 sits 80.8% above the 2009 sale of £130,000. It lags the bulk of the postcode on energy efficiency (less efficient than 87% of similar EPCs). 4 bedrooms is on the larger side for this postcode, where 2 is the typical count.
What this property has
Inside
- Bedrooms4
- Dining roomYes
- CloakroomYes
Outside
- Private gardenYes
- ParkingOff road
Building
- Heating systemGas
- RefurbishedYes
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This certificate is over 10 years old and is no longer valid.Expired 03 Sept 2023
EPC Rating
Property Improvements
Changes detected from historical EPC data
Fuel source changed
Heating controls upgraded for better temperature management
Hot water efficiency decreased
Roof insulation improved
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £885 · Includes VAT
Planning history
21 Colbourne Street has no planning applications on record.
But the area is active
15 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
21 Colbourne Street has more than doubled in price since the earliest registered sale in 1998.
£235,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.7% per year over 11 years.
£130,000
Growth on file: 7.7% per year over 11 years.
Sales timeline
6 November 2009Most recent
£130,000
+46.1%over 8 years29 March 2001
£89,000
+58.9%over 2 years23 July 1998
£56,000
Median price across the last 5 sales in SN1 2EQ: £165,000 (2025–2023).
Nearby sales in SN1 2EQ
Versus other Colbourne Street homes
21 Colbourne Street is notably below the street on epc rating.
Price per m²
£1,566
Street avg £2,100
Floor Area
83 m²
Street avg 75 m²
Habitable Rooms
5 rooms
Street avg 4 rooms
CO₂ Emissions
4.5 t/year
Street avg 3.5 t/year
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
7/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
County Road Corner — bus stop.
Closest school
0.6 km
Gorse Hill Primary School. 40 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
56.0dB

Night-time· 23:00 – 07:00
45.4dB







