Model valuation£417,0008 Busby Close
Local market context
134 Colwyn Avenue is a two-bedroom semi-detached house in Winch Wen, Swansea, Swansea (SA1 7EN). It has a recorded floor area of 76 m² (around 818 sq ft), construction records dating it to 1950-1966 and council tax band A. At 76 m² this is the 10th smallest of 20 units on EPC record in the building, where floor areas span 42–107 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (October 2018) shows a C (score 71). When first surveyed in October 2008 the rating was E, the property has climbed 2 bands since. Between certificates, wall efficiency went from Poor to Good, roof efficiency went from Average to Good and hot-water efficiency went from Poor to Good; while lighting dropped from Poor to Very Poor.
Across 2010–2021, sale prices on this property compounded at 3.1% per year. Today's modelled estimate of £107,000 is 39% above the 2021 sale price. Sold September 2021 for £77,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Certificate validity
Valid until 22 October 2028
Changes detected from historical EPC data
Heating controls changed
Hot water system upgraded
Wall insulation improved
Roof insulation improved
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134 Colwyn Avenue has no planning applications on record.
But the area is active
3 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£107,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.1% per year over 11 years.
£77,000
Growth on file: 3.1% per year over 11 years.
30 September 2021Most recent
£77,000
+41.3%over 11 years11 April 2010
£54,500
Median price across the last 5 sales in SA1 7EN: £103,000 (2025–2010).
98 Colwyn Avenue, Winch Wen, Swansea, SA1 7EN
Sold Nov 2025
116 Colwyn Avenue, Winch Wen, Swansea, SA1 7EN
Sold Nov 2020
124 Colwyn Avenue, Winch Wen, Swansea, SA1 7EN
Sold Apr 2020
104 Colwyn Avenue, Winch Wen, Swansea, SA1 7EN
Sold Nov 2013
100 Colwyn Avenue, Winch Wen, Swansea, SA1 7EN
Sold Mar 2010
Property research, connected
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Crime
580/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Colwyn Avenue Shops — bus stop.
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