20 St Helens Avenue, Swansea, SA1 4ND
About 20 St Helens Avenue
20 St Helens Avenue is a mid-terrace house in Swansea (SA1 4ND). It has a recorded floor area of 96 m² (around 1033 sq ft), construction records dating it to before 1900 and council tax band D. At 96 m² this is the 3rd smallest of 29 units on EPC record in the building, where floor areas span 76–173 m². The building's EPC ratings span G to C across 29 units on file. The latest certificate (October 2012) shows a D (score 56), a step below the typical UK home. The recommended improvements would push it to C (score 76). The latest certificate is from October 2012, so improvements made since then won't be reflected.
At 96 m² it sits well below the postcode median (154 m² across 28 EPCs), making it one of the more compact homes locally.
Everything you need to know about 20 St Helens Avenue
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
Energy performance
20 St Helens Avenue's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 09 Oct 2022
EPC Rating
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
20 St Helens Avenue has no planning applications on record.
But the area is active
44 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
20 St Helens Avenue has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£158,000
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.
Median price across the last 5 sales in SA1 4ND: £252,000 (2025–2020).
Nearby sales in SA1 4ND
Everything you need to know about 20 St Helens Avenue
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
St Helens Crescent — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.