11 William Court, Swansea, SA1 3QZ
About 11 William Court
11 William Court is a semi-detached house in Swansea (SA1 3QZ). It has a recorded floor area of 34 m² (around 366 sq ft), construction records dating it to 1983-1990 and council tax band B. At 34 m² this is the smallest unit on EPC record across the building (34–58 m²). The building's EPC ratings span D to B across 24 units on file. The latest certificate (November 2012) shows a C (score 77), near the top of the C band. The rating has held steady at C across 2 certificates since October 2008. Between certificates, window efficiency went from Poor to Good, hot-water efficiency went from Average to Good and lighting went from Poor to Very Good. The latest certificate is from November 2012, so improvements made since then won't be reflected.
At 34 m² it's 23.9% smaller than the typical home in the postcode (45 m² median across 23 EPCs).
Everything you need to know about 11 William Court
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Energy performance
11 William Court's carbon output is low for the local stock.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 12 Nov 2022
EPC Rating
Property Improvements
Changes detected from historical EPC data
Replaced storage heaters with gas boiler
Connected to mains gas supply
Heating controls upgraded for better temperature management
Hot water system upgraded
Windows upgraded, improving insulation
More low energy lighting installed
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Planning history
11 William Court has no planning applications on record.
But the area is active
29 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
11 William Court has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£121,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Versus other William Court homes
11 William Court is notably below the street on floor area.
EPC Rating
77 (C)
Street avg 75 (C)
Floor Area
34 m²
Street avg 46 m²
CO₂ Emissions
1.0 t/year
Street avg 1.5 t/year
Habitable Rooms
2 rooms
Street avg 2 rooms
Everything you need to know about 11 William Court
The true value, the hidden risks and the full sale history, in one report.
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Similar properties nearby
The neighbourhood at a glance
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Picton Arcade A — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.