20 Dyfed Avenue, Townhill, Swansea, SA1 6NP
About 20 Dyfed Avenue
20 Dyfed Avenue is a semi-detached house in Townhill, Swansea, Swansea (SA1 6NP). It has a recorded floor area of 72 m² (around 775 sq ft), construction records dating it to 1930-1949 and council tax band B. The latest certificate (January 2014) shows an E (score 41), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 73), a 2-band jump. The latest certificate is from January 2014, so improvements made since then won't be reflected.
It lags the bulk of the postcode on energy efficiency (less efficient than 89% of similar EPCs). Today's modelled estimate of £148,000 is 28.7% above the 2023 sale price. On a £-per-square-foot basis, the last sale (£148/sq ft) was about 57.2% above the typical sold price in the postcode. Most recent transfer: October 2023 at £115,000. One historical planning record sits against the property in 2006.
Everything you need to know about 20 Dyfed Avenue
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
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This certificate is over 10 years old and is no longer valid.Expired 25 Jan 2024
EPC Rating
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Planning history
1 application on record at 20 Dyfed Avenue, Townhill, Swansea, SA1 6NP
- Aug 2006ExtensionOutlineOutcome in report
Extension: Single storey · Rear of property
Single storey rear extension (application for Certificate of Proposed Lawful Development)
- Reference
- 2006/1638
Unlock 20 Dyfed Avenue, Townhill, Swansea, SA1 6NP's full planning history
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- Every decision — granted, refused or withdrawn (1 on record)
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Sales history & valuation
20 Dyfed Avenue valuation sits well clear of the typical sold price in this postcode.
£148,000
Modelled from EPC, postcode comparables.
£115,000
Recorded with HM Land Registry.
Sales timeline
5 October 2023Most recent
£115,000
Median price across the last 5 sales in SA1 6NP: £122,000 (2025–2021).
Nearby sales in SA1 6NP
15 Dyfed Avenue, Townhill, Swansea, SA1 6NP
Sold Oct 2025
£150,00012 Dyfed Avenue, Townhill, Swansea, SA1 6NP
Sold May 2022
£103,50017 Dyfed Avenue, Townhill, Swansea, SA1 6NP
Sold Nov 2021
£109,50010 Dyfed Avenue, Townhill, Swansea, SA1 6NP
Sold Nov 2021
£122,00018 Dyfed Avenue, Townhill, Swansea, SA1 6NP
Sold Aug 2021
£95,000
Versus other Dyfed Avenue homes
EPC Rating for 20 Dyfed Avenue lags the street by a wide margin.
Price per m²
£1,597
Street avg £1,367
Floor Area
72 m²
Street avg 75 m²
Habitable Rooms
5 rooms
Street avg 4 rooms
CO₂ Emissions
5.6 t/year
Street avg 3.1 t/year
Everything you need to know about 20 Dyfed Avenue
The true value, the hidden risks and the full sale history, in one report.
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The neighbourhood at a glance
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Cadfan Road — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.






