11 St Helens Avenue, Swansea, SA1 4ND
About 11 St Helens Avenue
11 St Helens Avenue is a mid-terrace house in Swansea (SA1 4ND). It has a recorded floor area of 166 m² (around 1787 sq ft), construction records dating it to before 1900 and council tax band E. The latest certificate (August 2025) shows an E (score 54), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 79), a 2-band jump.
It lags the bulk of the postcode on energy efficiency (less efficient than 75% of similar EPCs). One historical planning record sits against the property in 2026.
Everything you need to know about 11 St Helens Avenue
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
11 St Helens Avenue's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
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Level 3 Building Survey
Because the property was built before 1919, we believe a Level 3 building survey should be considered.
From £885 · Includes VAT
Planning history
1 application on record at 11 St Helens Avenue, Swansea, SA1 4ND
1 live now- Jan 2026HMOFullOutcome in report
Change of use from residential dwelling to 6 bedroom HMO
Change of Use- Documents
- 7 docs on file
- Reference
- 2026/0112/FUL
Unlock 11 St Helens Avenue, Swansea, SA1 4ND's full planning history
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- Every decision — granted, refused or withdrawn
- All 1 application on this property in full, plus 44 notable nearby
- The 7 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
11 St Helens Avenue has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£267,000
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
Versus other St Helens Avenue homes
11 St Helens Avenue outperforms the street on floor area by a wide margin.
EPC Rating
54 (E)
Street avg 56 (D)
Floor Area
166 m²
Street avg 149 m²
CO₂ Emissions
6.2 t/year
Street avg 7.0 t/year
Habitable Rooms
7 rooms
Street avg 7 rooms
Everything you need to know about 11 St Helens Avenue
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
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.