12a, Haddon Close, Grange Park, Swindon, SN5 6ER
About 12a
12a is a three-bedroom semi-detached house in Grange Park, Swindon, Swindon (SN5 6ER). It has a recorded floor area of 74 m² (around 797 sq ft), construction records dating it to 1983-1990 and council tax band C. The latest certificate (May 2019) shows a C (score 73). When first surveyed in June 2009 the rating was D, the property has climbed 1 band since. Between certificates, lighting went from Poor to Very Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The recommended improvements would push it to B (score 87).
Its energy rating outperforms most of the postcode (better than 73% of similar EPCs). Across 2019–2023, sale prices on this property compounded at 5.3% per year. On a £-per-square-foot basis, the last sale (£373/sq ft) was about 98.7% above the typical sold price in the postcode. Last sale on file: £297,000 in October 2023.
What this property has
Inside
- Bedrooms3
- Bathrooms1
Energy performance
EPC Rating
Certificate validity
Valid until 21 May 2029
Property Improvements
Changes detected from historical EPC data
Hot water efficiency decreased
More low energy lighting installed
Get a survey for this property
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Planning history
12a has no planning applications on record.
A planning report still maps activity across the surrounding area and reads this property's extension & conversion potential.
Sales history & valuation
12a saw 3 transfers in just over a decade — high turnover for the postcode.
£306,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.3% per year over 4 years.
£297,000
Growth on file: 5.3% per year over 4 years.
Sales timeline
26 October 2023Most recent
£297,000
+12.1%over 2 years27 June 2021
£265,000
+11.8%over 2 years26 June 2019
£237,000
Median price across the last 5 sales in SN5 6ER: £260,000 (2024–2018).
Nearby sales in SN5 6ER
10 Haddon Close, Grange Park, Swindon, SN5 6ER
Sold May 2024
£250,0005 Haddon Close, Grange Park, Swindon, SN5 6ER
Sold May 2022
£277,00011 Haddon Close, Grange Park, Swindon, SN5 6ER
Sold Jan 2022
£305,0009 Haddon Close, Grange Park, Swindon, SN5 6ER
Sold Aug 2021
£260,0006 Haddon Close, Grange Park, Swindon, SN5 6ER
Sold Mar 2018
£245,000
Versus other Haddon Close homes
On price per m², 12a stands well clear of the street.
Price per m²
£4,014
Street avg £2,598
Floor Area
74 m²
Street avg 85 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
2.4 t/year
Street avg 3.4 t/year
Similar properties nearby
1 Bosworth Road, Grange Park
SN5 6AL
1 Cabot Drive, Grange Park
SN5 6HG
1 Devereux Close, Grange Park
SN5 6HE
1 Bainbridge Close, Grange Park
SN5 6BD
1 Bancroft Close, Grange Park
SN5 6HB
1 Bale Close, Grange Park
SN5 6HX
1 Cleves Close, Grange Park
SN5 6JX
1 Carey Close, Grange Park
SN5 6BH
The neighbourhood at a glance
Crime
186/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Bradenham Road — bus stop.
Closest school
0.4 km
Lydiard Park Academy. 15 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
50.1dB

Night-time· 23:00 – 07:00
40.1dB







