2a, Gelli Street, Port Tennant, Swansea, SA1 8NJ
About 2a
2a is a detached house in Port Tennant, Swansea, Swansea (SA1 8NJ). It has a recorded floor area of 54 m² (around 581 sq ft), construction records dating it to 1950-1966 and council tax band A. The latest certificate (December 2022) shows a D (score 64), on the cusp of jumping into the C band. When first surveyed in January 2020 the rating was G, the property has climbed 3 bands since. Between certificates, wall efficiency went from Very Poor to Poor, window efficiency went from Average to Good and hot-water efficiency went from Very Poor to Good. The recommended improvements would push it to C (score 73). At 54 m² this is the 3rd smallest of 38 units on EPC record in the building, where floor areas span 43–106 m². The building's EPC ratings span E to C across 38 units on file.
At 54 m² it sits well below the postcode median (81 m² across 37 EPCs), making it one of the more compact homes locally.
Energy performance
EPC Rating
Certificate validity
Valid until 9 December 2032
Property Improvements
Changes detected from historical EPC data
Upgraded to gas central heating
Hot water system upgraded
Window efficiency improved
Wall insulation improved
More low energy lighting installed
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Level 2 HomeBuyer Report
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Planning history
2a has no planning applications on record.
But the area is active
47 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
2a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£114,000
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 8NJ: £127,000 (2026–2024).
Nearby sales in SA1 8NJ
13 Gelli Street, Port Tennant, Swansea, SA1 8NJ
Sold May 2026
£92,5007 Gelli Street, Port Tennant, Swansea, SA1 8NJ
Sold Mar 2026
£129,50035 Gelli Street, Port Tennant, Swansea, SA1 8NJ
Sold Jan 2025
£127,0003 Gelli Street, Port Tennant, Swansea, SA1 8NJ
Sold Sept 2024
£137,95040 Gelli Street, Port Tennant, Swansea, SA1 8NJ
Sold Aug 2024
£104,950
Versus other Gelli Street homes
CO₂ Emissions for 2a lags the street by a wide margin.
EPC Rating
64 (D)
Street avg 63 (D)
Floor Area
54 m²
Street avg 49 m²
CO₂ Emissions
2.5 t/year
Street avg 2.6 t/year
Habitable Rooms
2 rooms
Street avg 2 rooms
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The neighbourhood at a glance
Crime
580/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
St Stephens Church — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







