19 St Helens Avenue, Swansea, SA1 4ND
About 19 St Helens Avenue
19 St Helens Avenue is a seven-bedroom mid-terrace house in Swansea (SA1 4ND). It has a recorded floor area of 168 m² (around 1808 sq ft), construction records dating it to 1900-1929 and council tax band E. The latest certificate (January 2025) shows a C (score 69), just inside the C band. When first surveyed in November 2014 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor and window efficiency went from Average to Good; while roof efficiency dropped from Good to Very Poor. The recommended improvements would push it to B (score 81).
On energy efficiency it sits in the top 10% of properties in this postcode. 7 bedrooms is on the larger side for this postcode, where 5 is the typical count. Across 2006–2015, sale prices on this property compounded at -1.4% per year. Today's modelled estimate of £311,000 sits 56.7% above the 2015 sale of £198,500. On a £-per-square-foot basis, the last sale (£110/sq ft) was about 24.9% above the typical sold price in the postcode. 11 years since the last transfer (June 2015). One historical planning record sits against the property in 2026.
What this property has
Inside
- Bedrooms7
- Bathrooms2
Everything you need to know about 19 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
19 St Helens Avenue ranks among the most efficient homes in the postcode for energy use.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Window efficiency improved
Wall insulation improved
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has been extended more than once, we believe a Level 3 building survey should be considered.
From £955 · Includes VAT
Planning history
1 application on record at 19 St Helens Avenue, Swansea, SA1 4ND
1 live now- Mar 2026HMOAmendmentOutcome in report
Use of property as a 7 bed 7 person Unique Use Large HMO (application for a Certificate of Lawfulness)
- Documents
- 20 docs on file
- Reference
- 2026/0487/ELD
Unlock 19 St Helens Avenue, Swansea, SA1 4ND's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn
- All 1 application on this property in full, plus 44 notable nearby
- The 20 documents, officer reports & conditions
- What the pattern means for extending or converting here
One time fee only - money back guarantee
Sales history & valuation
19 St Helens Avenue valuation sits well clear of the typical sold price in this postcode.
£311,000
Modelled from EPC, postcode comparables and a sale-price growth of -1.4% per year over 9 years.
£198,500
Growth on file: -1.4% per year over 9 years.
Sales timeline
15 June 2015Most recent
£198,500
-11.8%over 8 years16 August 2006
£225,000
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
Floor Area for 19 St Helens Avenue runs comfortably ahead of the street norm.
Price per m²
£1,182
Street avg £1,125
Floor Area
168 m²
Street avg 149 m²
Habitable Rooms
8 rooms
Street avg 7 rooms
CO₂ Emissions
5.2 t/year
Street avg 7.0 t/year
Everything you need to know about 19 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.