Model valuation£417,0008 Busby Close
Local market context
121 Colwyn Avenue, Winch Wen, Swansea, SA1 7EN
Property type
Semi-detached
Habitable rooms
3
From EPC
Floor area
47 m²
506 sq ft
Energy rating
D
Score 66
Council tax
Band A
Tenure
Social Rental
About 121 Colwyn Avenue
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
121 Colwyn Avenue is a semi-detached house in Winch Wen, Swansea, Swansea (SA1 7EN). It has a recorded floor area of 47 m² (around 506 sq ft), construction records dating it to 1950-1966 and council tax band A. The latest certificate (September 2013) shows a D (score 66), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 91), a 2-band jump. The latest certificate is from September 2013, so improvements made since then won't be reflected.
At 47 m² it sits well below the postcode median (81 m² across 19 EPCs), making it one of the more compact homes locally.
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The data behind every report
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 03 Sept 2023
Current Certificate
Sept 2013EPC Rating
A
B
C
D
D66
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
2.1 t/year
Occupancy
Rented
Certificate validity
Expired on 3 September 2023
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Level 2 HomeBuyer Report
Mid 20th centurySemi-Detached BungalowEPC D
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Planning history
Applications and permits filed against 121 Colwyn Avenue, Winch Wen, Swansea, SA1 7EN, sourced from the PlanIt planning register.
121 Colwyn Avenue has no planning applications on record.
3
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
Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.
121 Colwyn Avenue has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
Current estimate
See how we calculated this£125,000
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 7EN: £103,000 (2025–2013).
Nearby sales in SA1 7EN
98 Colwyn Avenue, Winch Wen, Swansea, SA1 7EN
Sold Nov 2025
£105,000134 Colwyn Avenue, Winch Wen, Swansea, SA1 7EN
Sold Sept 2021
£77,000116 Colwyn Avenue, Winch Wen, Swansea, SA1 7EN
Sold Nov 2020
£103,000124 Colwyn Avenue, Winch Wen, Swansea, SA1 7EN
Sold Apr 2020
£109,250104 Colwyn Avenue, Winch Wen, Swansea, SA1 7EN
Sold Nov 2013
£83,000
Versus other Colwyn Avenue homes
Four headline reads against 16 similar houses on this street, drawn from the latest EPC and Land Registry data.
CO₂ Emissions for 121 Colwyn Avenue runs comfortably ahead of the street norm.
EPC Rating
66 (D)
Street avg 62 (D)
Floor Area
47 m²
Street avg 77 m²
CO₂ Emissions
2.1 t/year
Street avg 3.5 t/year
Habitable Rooms
3 rooms
Street avg 5 rooms
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Start your researchSimilar properties nearby
A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£125k
1 Candleston Place, Bonymaen
SA1 7JB
£127k
1 Cilgerran Place, Winch Wen
SA1 7EB
£129k
1 Carreg Cennen Gardens, Bonymaen
SA1 7DJ
£129k
1 Dartford Drive, Bonymaen
SA1 7DU
£130k
1 Carew Place, Winch Wen
SA1 7DX
£120k
1 Belleisle Apartments, Phoebe Road, Copper Quarter, Pentrechwyth
SA1 7FW
Flat
£118k
1 Caernarvon Way, Bonymaen
SA1 7HN
£118k
1 Chirk Gardens, Bonymaen
SA1 7HU
The neighbourhood at a glance
A condensed read of the local area. Each tile links through to the full breakdown on the Swansea district page.
Crime
580/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Colwyn Avenue Shops — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Common questions
The questions buyers, sellers and homeowners most often ask about 121 Colwyn Avenue, Winch Wen, Swansea, SA1 7EN. Each answer is also embedded as structured data for search engines.