109a, Dean Street, Swindon, SN1 5EN
About 109a
109a is an end-of-terrace house in Swindon (SN1 5EN). It has a recorded floor area of 78 m² (around 840 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (June 2022) shows a D (score 61), on the cusp of jumping into the C band. When first surveyed in March 2010 the rating was F, the property has climbed 2 bands since. Between certificates, roof efficiency went from Very Poor to Average, window efficiency went from Poor to Average and hot-water efficiency went from Average to Good. The recommended improvements would lift it to B (score 85), a 2-band jump.
Untraded for 27 years, with the last transfer in August 1999. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £215,000 sits 261.3% above the 1999 sale of £59,500. On a £-per-square-foot basis, the last sale (£71/sq ft) was about 41.8% below the postcode norm.
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Certificate validity
Valid until 18 June 2032
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Hot water efficiency improved
Windows upgraded, improving insulation
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, has been extended more than once, and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £885 · Includes VAT
Planning history
109a 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
109a's estimated value is more than triple its earliest registered sale price (1999).
£215,000
Modelled from EPC, postcode comparables.
£59,500
Recorded with HM Land Registry.
Sales timeline
24 August 1999Most recent
£59,500
Median price across the last 5 sales in SN1 5EN: £230,000 (2025–2023).
Versus other Dean Street homes
Years Held for 109a runs comfortably ahead of the street norm.
Price per m²
£763
Street avg £1,772
Floor Area
78 m²
Street avg 96 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
4.0 t/year
Street avg 4.4 t/year
Similar properties nearby
The neighbourhood at a glance
Crime
380/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Dean Street — bus stop.
Closest school
0.2 km
Robert Le Kyng Primary School. 33 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
52.2dB

Night-time· 23:00 – 07:00
42.3dB







