31 Second Avenue, Clase, Swansea, SA6 7LN
About 31 Second Avenue
31 Second Avenue is an end-of-terrace house in Clase, Swansea, Swansea (SA6 7LN). It has a recorded floor area of 69 m² (around 743 sq ft), construction records dating it to 1950-1966 and council tax band A. The latest certificate (October 2018) shows an E (score 53), well below the UK norm with real room to improve. Earlier certificates rated it D (November 2012); the latest reading is one band lower. Between certificates, roof efficiency went from Poor to Good; while wall efficiency dropped from Average to Very Poor and lighting dropped from Average to Very Poor. The recommended improvements would lift it to C (score 71), a 2-band jump.
Across 1997–2019, sale prices on this property compounded at 4.9% per year. Today's modelled estimate of £120,000 sits 79.1% above the 2019 sale of £67,000. It lags the bulk of the postcode on energy efficiency (less efficient than 74% of similar EPCs). Most recent transfer: March 2019 at £67,000.
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Certificate validity
Valid until 1 October 2028
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Loft insulation upgraded to recommended levels
Low energy lighting percentage decreased
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Planning history
31 Second Avenue has no planning applications on record.
A planning report still maps activity across the surrounding area and reads this property's extension & conversion potential.
Sales history & valuation
Sale price has at least doubled since 1997.
£120,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.9% per year over 22 years.
£67,000
Growth on file: 4.9% per year over 22 years.
Sales timeline
18 March 2019Most recent
£67,000
+44.1%over 6 years1 March 2013
£46,500
+93.8%over 15 years31 July 1997
£24,000
Median price across the last 5 sales in SA6 7LN: £104,000 (2025–2019).
Nearby sales in SA6 7LN
5 Second Avenue, Clase, Swansea, SA6 7LN
Sold Sept 2025
£120,00025 Second Avenue, Clase, Swansea, SA6 7LN
Sold Apr 2022
£105,00044 Second Avenue, Clase, Swansea, SA6 7LN
Sold Dec 2021
£82,00036 Second Avenue, Clase, Swansea, SA6 7LN
Sold Oct 2018
£80,50034 Second Avenue, Clase, Swansea, SA6 7LN
Sold Nov 2017
£75,000
Versus other Second Avenue homes
31 Second Avenue is notably below the street on habitable rooms.
Price per m²
£971
Street avg £1,077
Floor Area
69 m²
Street avg 73 m²
Habitable Rooms
1 rooms
Street avg 4 rooms
CO₂ Emissions
3.8 t/year
Street avg 3.9 t/year
Similar properties nearby
The neighbourhood at a glance
Crime
210/mo
Falling year-on-year across the wider district.
Nearest stop
0.2 km
Pengwern Road — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







