25a, St Helens Avenue, Swansea, SA1 4ND
About 25a
25a is a mid-terrace house in Swansea (SA1 4ND). It has a recorded floor area of 76 m² (around 818 sq ft), construction records dating it to 1900-1929 and council tax band E. At 76 m² this is the smallest unit on EPC record across the building (76–184 m²). The building's EPC ratings span G to C across 30 units on file. The latest certificate (November 2021) shows a D (score 65), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since August 2011. Between certificates, lighting went from Good to Very Good; while window efficiency dropped from Good to Average. The recommended improvements would push it to C (score 75).
At 76 m² it sits well below the postcode median (154 m² across 29 EPCs), making it one of the more compact homes locally.
Everything you need to know about 25a
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Energy performance
EPC Rating
Certificate validity
Valid until 22 November 2031
Property Improvements
Changes detected from historical EPC data
More low energy lighting installed
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
25a 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
25a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£167,000
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 25a
The true value, the hidden risks and the full sale history, in one report.
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One time fee only - money back guarantee
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Similar properties nearby
The neighbourhood at a glance
Crime
580/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.