15 King William Street, Swindon, SN1 3LB
About 15 King William Street
15 King William Street is a three-bedroom mid-terrace house in Swindon (SN1 3LB). It has a recorded floor area of 82 m² (around 883 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (March 2019) shows a D (score 59), a step below the typical UK home. The recommended improvements would push it to C (score 77).
Untraded for 24 years, with the last transfer in April 2002. Today's modelled estimate of £232,000 sits 109% above the 2002 sale of £111,000.
What this property has
Inside
- Bedrooms3
- Bathrooms1
Everything you need to know about 15 King William Street
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
EPC Rating
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
15 King William Street has no planning applications on record.
But the area is active
31 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
15 King William Street valuation sits well clear of the typical sold price in this postcode.
£232,000
Modelled from EPC, postcode comparables.
£111,000
Recorded with HM Land Registry.
Sales timeline
30 April 2002Most recent
£111,000
Median price across the last 5 sales in SN1 3LB: £265,000 (2025–2021).
Nearby sales in SN1 3LB
1 King William Street, Swindon, SN1 3LB
Sold Sept 2025
£217,00026 King William Street, Swindon, SN1 3LB
Sold Oct 2023
£270,00023 King William Street, Swindon, SN1 3LB
Sold Aug 2023
£325,00018 King William Street, Swindon, SN1 3LB
Sold Nov 2022
£265,00011 King William Street, Swindon, SN1 3LB
Sold Nov 2021
£215,000
Versus other King William Street homes
Years Held for 15 King William Street runs comfortably ahead of the street norm.
Price per m²
£1,354
Street avg £2,025
Floor Area
82 m²
Street avg 90 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
3.8 t/year
Street avg 4.3 t/year
Everything you need to know about 15 King William Street
The true value, the hidden risks and the full sale history, in one report.
Pick your report · every report is £14.99
One time fee only - money back guarantee

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The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
7/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Avenue Road — bus stop.
Closest school
0.0 km
King William Street Church of England Primary School. 28 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
52.0dB

Night-time· 23:00 – 07:00
41.6dB






