1a, Dover Street, Swindon, SN1 3JP
About 1a
1a is a detached house in Swindon (SN1 3JP). It has a recorded floor area of 42 m² (around 452 sq ft) and construction records dating it to 1983-1990. At 42 m² this is the smallest unit on EPC record across the building (42–130 m²). The building's EPC ratings span E to C, with this unit at the top. The latest certificate (June 2023) shows a C (score 70). The rating has held steady at C across 2 certificates since June 2013. Between certificates, lighting dropped from Very Good to Good.
At 42 m² it sits well below the postcode median (76 m² across 39 EPCs), making it one of the more compact homes locally. Sold February 2022 for £108,000. Across the public record there are 5 sales, relatively high churn for a single property. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. Across 1999–2022, sale prices on this property compounded at 3.7% per year. Today's modelled estimate of £135,000 is 25% above the 2022 sale price. On a £-per-square-foot basis, the last sale (£239/sq ft) was about 57.3% above the typical sold price in the postcode.
Energy performance
EPC Rating
Certificate validity
Valid until 19 June 2033
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Low energy lighting percentage decreased
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Planning history
1a has no planning applications on record.
But the area is active
30 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Sale price has at least doubled since 1999.
£135,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.7% per year over 22 years.
£108,000
Growth on file: 3.7% per year over 22 years.
Sales timeline
23 February 2022Most recent
£108,000
+13.7%over 6 years28 October 2015
£95,000
+8.6%over 9 years13 August 2006
£87,500
+45.8%over 4 years17 December 2001
£60,000
+25.0%over 2 years16 September 1999
£48,000
Median price across the last 5 sales in SN1 3JP: £198,000 (2026–2024).
Versus other Dover Street homes
Price per m² for 1a runs comfortably ahead of the street norm.
Price per m²
£2,571
Street avg £2,294
Floor Area
42 m²
Street avg 63 m²
Habitable Rooms
2 rooms
Street avg 3 rooms
CO₂ Emissions
1.8 t/year
Street avg 2.9 t/year
Similar properties nearby
The neighbourhood at a glance
Crime
380/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Cannon Street — bus stop.
Closest school
0.2 km
King William Street Church of England Primary School. 29 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
52.5dB

Night-time· 23:00 – 07:00
41.2dB







