21 Dyfed Avenue, Townhill, Swansea, SA1 6NP
About 21 Dyfed Avenue
21 Dyfed Avenue is a four-bedroom semi-detached house in Townhill, Swansea, Swansea (SA1 6NP). It has a recorded floor area of 111 m² (around 1195 sq ft), construction records dating it to 1950-1966 and council tax band B. The latest certificate (March 2014) shows a D (score 61), on the cusp of jumping into the C band. When first surveyed in February 2012 the rating was E, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Poor to Good; while roof efficiency dropped from Very Good to Very Poor and lighting dropped from Very Good to Good. The recommended improvements would lift it to B (score 85), a 2-band jump. The latest certificate is from March 2014, so improvements made since then won't be reflected.
At 111 m² the property is well over the postcode median (72 m² across 18 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £186,000 sits 69.1% above the 2012 sale of £110,000. 3 planning records sit against the property, 2 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved. 14 years since the last transfer (June 2012).
What this property has
Inside
- Bedrooms4
- Dining roomYes
- EnsuiteYes
Outside
- Private gardenYes
- DrivewayYes
Building
- Heating systemGas
- RefurbishedYes
Everything you need to know about 21 Dyfed Avenue
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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This certificate is over 10 years old and is no longer valid.Expired 17 Mar 2024
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water system upgraded
Low energy lighting percentage decreased
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Planning history
21 Dyfed Avenue has an approved rear extension on the planning record.
3 applications on record at 21 Dyfed Avenue, Townhill, Swansea, SA1 6NP
- Mar 2000ExtensionFullOutcome in report
Extension: Rear of property
TWO STOREY REAR EXTENSION
- Reference
- A00/0168
- More recent applications — locked
- OutbuildingFeb 2003Decision
- OutbuildingDec 2002Decision
Unlock 21 Dyfed Avenue, Townhill, Swansea, SA1 6NP's full planning history
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- Every decision — granted, refused or withdrawn (3 on record)
- All 3 applications on this property in full, plus 64 notable nearby
- What the pattern means for extending or converting here
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Sales history & valuation
21 Dyfed Avenue valuation sits well clear of the typical sold price in this postcode.
£186,000
Modelled from EPC, postcode comparables.
£110,000
Recorded with HM Land Registry.
Sales timeline
7 June 2012Most recent
£110,000
Median price across the last 5 sales in SA1 6NP: £115,000 (2025–2021).
Nearby sales in SA1 6NP
15 Dyfed Avenue, Townhill, Swansea, SA1 6NP
Sold Oct 2025
£150,00020 Dyfed Avenue, Townhill, Swansea, SA1 6NP
Sold Oct 2023
£115,00012 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
£122,000
Versus other Dyfed Avenue homes
On years held, 21 Dyfed Avenue stands well clear of the street.
Price per m²
£991
Street avg £1,428
Floor Area
111 m²
Street avg 73 m²
Habitable Rooms
6 rooms
Street avg 4 rooms
CO₂ Emissions
4.7 t/year
Street avg 3.2 t/year
Everything you need to know about 21 Dyfed Avenue
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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.






