Flat 4, 20 Church Street, Swindon, SN3 4NB
About Flat 4
Flat 4 is a one-bedroom mid-terrace house in Swindon (SN3 4NB). It has a recorded floor area of 44 m² (around 474 sq ft), construction records dating it to 1900-1929 and council tax band A. At 44 m² this is the 3rd smallest of 5 units on EPC record in the building, where floor areas span 36–66 m². The building's EPC ratings span E to C, with this unit at the bottom. The latest certificate (September 2025) shows an E (score 53), well below the UK norm with real room to improve. Earlier certificates rated it D (July 2015); the latest reading is one band lower. Between certificates, hot-water efficiency went from Poor to Average, lighting went from Poor to Good and main heating went from Very Poor to Poor; while wall efficiency dropped from Poor to Very Poor and window efficiency dropped from Average to Poor. The recommended improvements would lift it to B (score 81), a 3-band jump. Main heating runs on electricity.
Most recent transfer was May 2026 at £112,000 — fresh data. Across the public record there are 5 sales, relatively high churn for a single property. At 44 m² it sits well below the postcode median (66 m² across 26 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 77% of similar EPCs). Across 2001–2026, sale prices on this property compounded at 4% per year. Today's modelled estimate of £129,000 is 15.2% above the 2026 sale price. On a £-per-square-foot basis, the last sale (£236/sq ft) was about 40.2% above the typical sold price in the postcode.
What this property has
Inside
- Bedrooms1
- Bathrooms1
Outside
- ParkingAllocated
Building
- Heating systemLpg
- RefurbishedYes
Energy performance
Flat 4's carbon output is low for the local stock.
EPC Rating
Certificate validity
Valid until 27 September 2035
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency 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 no mains gas supply, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
Flat 4 has no planning applications on record.
But the area is active
9 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Flat 4 has more than doubled in price since the earliest registered sale in 2001.
£129,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.0% per year over 25 years.
£112,000
Growth on file: 4.0% per year over 25 years.
Sales timeline
4 May 2026Most recent
£112,000
+3.7%over 2 years17 November 2023
£108,000
+33.3%over 3 years28 February 2020
£81,000
+15.7%over 14 years17 October 2005
£70,000
+66.7%over 4 years27 June 2001
£42,000
Median price across the last 5 sales in SN3 4NB: £157,500 (2025–2024).
Nearby sales in SN3 4NB
3 Church Street, Swindon, SN3 4NB
Sold Sept 2025
£300,000Flat 1, 20 Church Street, Swindon, SN3 4NB
Sold Sept 2025
£157,500Flat 2, 20 Church Street, Swindon, SN3 4NB
Sold Jun 2025
£124,0007a, Church Street, Swindon, SN3 4NB
Sold Mar 2025
£425,00021 Church Farm, Church Street, Swindon, SN3 4NB
Sold Apr 2024
£90,000
Versus other Church Street homes
Years Held for Flat 4 lags the street by a wide margin.
Price per m²
£2,545
Street avg £2,338
Floor Area
44 m²
Street avg 55 m²
Habitable Rooms
2 rooms
Street avg 3 rooms
CO₂ Emissions
0.9 t/year
Street avg 2.4 t/year
Similar properties nearby
Flat 1, 106 Swindon Road, Stratton St Margaret
SN3 4PT
Flat 2, 8 Swindon Road, Stratton St Margaret
SN3 4PZ
Flat 2, 13 Oxford Road
SN3 4HP
Flat 1, 20 Church Street
SN3 4NB
Flat 1, 13 Oxford Road
SN3 4HP
Flat 1, 192 Oxford Road
SN3 4HA
Flat 1, 5 Highworth Road, South Marston
SN3 4SF
Flat 2, 106 Swindon Road, Stratton St Margaret
SN3 4PT
The neighbourhood at a glance
Crime
318/mo
Falling year-on-year across the wider district.
Nearest stop
0.1 km
Jacobs Ladder — bus stop.
Closest school
0.4 km
Grange Junior School. 23 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
55.2dB

Night-time· 23:00 – 07:00
47.5dB







