15a, Cae Grawn, Gowerton, Swansea, SA4 3BY
About 15a
15a is an end-of-terrace house in Gowerton, Swansea, Swansea (SA4 3BY). It has a recorded floor area of 52 m² (around 560 sq ft), construction records dating it to 1950-1966 and council tax band A. At 52 m² this is the 15th smallest of 19 units on EPC record in the building, where floor areas span 45–73 m². The building's EPC ratings span D to C, with this unit at the top. The latest certificate (June 2024) shows a C (score 70). When first surveyed in June 2014 the rating was E, the property has climbed 2 bands since. Between certificates, roof efficiency went from Very Poor to Good and lighting went from Average to Very Good.
Across 2002–2022, sale prices on this property compounded at 3.9% per year. Today's modelled estimate of £105,000 is 40% above the 2022 sale price. Sold June 2022 for £75,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Energy performance
EPC Rating
Certificate validity
Valid until 14 June 2034
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Roof insulation improved
More low energy lighting installed
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Planning history
15a has no planning applications on record.
But the area is active
4 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
15a has more than doubled in price since the earliest registered sale in 2002.
£105,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.9% per year over 20 years.
£75,000
Growth on file: 3.9% per year over 20 years.
Sales timeline
9 June 2022Most recent
£75,000
+114.3%over 19 years11 August 2002
£35,000
Median price across the last 5 sales in SA4 3BY: £89,000 (2026–2023).
Nearby sales in SA4 3BY
16 Cae Grawn, Gowerton, Swansea, SA4 3BY
Sold Feb 2026
£72,0004 Cae Grawn, Gowerton, Swansea, SA4 3BY
Sold Oct 2025
£157,5007a, Cae Grawn, Gowerton, Swansea, SA4 3BY
Sold Aug 2025
£83,0005 Cae Grawn, Gowerton, Swansea, SA4 3BY
Sold Oct 2023
£142,5002 Cae Grawn, Gowerton, Swansea, SA4 3BY
Sold May 2023
£89,000
Versus other Cae Grawn homes
On floor area, 15a stands well clear of the street.
Price per m²
£1,442
Street avg £1,532
Floor Area
52 m²
Street avg 49 m²
Habitable Rooms
2 rooms
Street avg 2 rooms
CO₂ Emissions
2.0 t/year
Street avg 1.8 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
160/mo
Falling year-on-year across the wider district.
Nearest stop
0.1 km
The Mount — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







