21 William Court, Swansea, SA1 3QZ
About 21 William Court
21 William Court is a semi-detached house in Swansea (SA1 3QZ). It has a recorded floor area of 41 m² (around 441 sq ft), construction records dating it to 1983-1990 and council tax band B. At 41 m² this is the 4th smallest of 24 units on EPC record in the building, where floor areas span 34–58 m². The building's EPC ratings span D to B across 24 units on file. The latest certificate (March 2023) shows a C (score 76), near the top of the C band. The recommended improvements would push it to B (score 82). Main heating runs on electricity.
Everything you need to know about 21 William Court
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 has no mains gas supply, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
21 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
21 William Court has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£108,000
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
On floor area, 21 William Court runs well behind the street norm.
EPC Rating
76 (C)
Street avg 75 (C)
Floor Area
41 m²
Street avg 46 m²
CO₂ Emissions
2.2 t/year
Street avg 1.5 t/year
Habitable Rooms
2 rooms
Street avg 2 rooms
Everything you need to know about 21 William Court
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
The data behind every report
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.