10 Colwyn Avenue, Winch Wen, Swansea, SA1 7EE
About 10 Colwyn Avenue
10 Colwyn Avenue is a semi-detached house in Winch Wen, Swansea, Swansea (SA1 7EE). It has a recorded floor area of 72 m² (around 775 sq ft), construction records dating it to 1950-1966 and council tax band A. The latest certificate (February 2026) shows a D (score 67), on the cusp of jumping into the C band. Earlier certificates rated it C (February 2011); the latest reading is one band lower. Between certificates, wall efficiency dropped from Good to Poor and roof efficiency dropped from Very Good to Average. The recommended improvements would push it to C (score 80). This certificate was lodged in the last six months, so the rating reflects current condition.
Today's modelled estimate of £134,000 sits 81.1% above the 2017 sale of £74,000. 9 years since the last transfer (August 2017).
Energy performance
The EPC has just been inspected, so the rating reflects current condition.
EPC Rating
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Planning history
10 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.
Sales history & valuation
10 Colwyn Avenue valuation sits well clear of the typical sold price in this postcode.
£134,000
Modelled from EPC, postcode comparables.
£74,000
Recorded with HM Land Registry.
Sales timeline
17 August 2017Most recent
£74,000
Median price across the last 5 sales in SA1 7EE: £120,000 (2025–2021).
Nearby sales in SA1 7EE
3 Colwyn Avenue, Winch Wen, Swansea, SA1 7EE
Sold Sept 2025
£129,0006 Colwyn Avenue, Winch Wen, Swansea, SA1 7EE
Sold Aug 2025
£185,0005 Colwyn Avenue, Winch Wen, Swansea, SA1 7EE
Sold Apr 2025
£115,0008 Colwyn Avenue, Winch Wen, Swansea, SA1 7EE
Sold Jun 2021
£120,00023 Colwyn Avenue, Winch Wen, Swansea, SA1 7EE
Sold May 2021
£116,550
Versus other Colwyn Avenue homes
10 Colwyn Avenue is notably below the street on price per m².
Price per m²
£1,028
Street avg £1,647
Floor Area
72 m²
Street avg 75 m²
Habitable Rooms
3 rooms
Street avg 4 rooms
CO₂ Emissions
2.6 t/year
Street avg 2.7 t/year
Similar properties nearby
1 Caerphilly Avenue, Bonymaen
SA1 7HY
1 Cilgerran Place, Winch Wen
SA1 7EB
1 Carew Place, Winch Wen
SA1 7DX
1 Carreg Cennen Gardens, Bonymaen
SA1 7DJ
1 Dartford Drive, Bonymaen
SA1 7DU
1 Candleston Place, Bonymaen
SA1 7JB
1 Criccieth Place, Winch Wen
SA1 7DZ
1 Buckingham Road, Bonymaen
SA1 7AL
The neighbourhood at a glance
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.3 km
Carmel Road — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







