12 Dyfed Avenue, Townhill, Swansea, SA1 6NP
About 12 Dyfed Avenue
12 Dyfed Avenue is a mid-terrace house in Townhill, Swansea, Swansea (SA1 6NP). It has a recorded floor area of 89 m² (around 958 sq ft), construction records dating it to 1930-1949 and council tax band B. The latest certificate (November 2021) shows a C (score 72). When first surveyed in July 2011 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Average, window efficiency went from Very Poor to Average and lighting went from Good to Very Good. The recommended improvements would push it to B (score 84).
A recent sale: £140,000 in December 2025. At 89 m² it's 24.5% larger than the typical home in the postcode (72 m² median across 18 EPCs). Its energy rating outperforms most of the postcode (better than 78% of similar EPCs). Across 2004–2025, sale prices on this property compounded at 6.9% per year. On a £-per-square-foot basis, the last sale (£146/sq ft) was about 51% above the typical sold price in the postcode.
Energy performance
EPC Rating
Certificate validity
Valid until 29 November 2031
Property Improvements
Changes detected from historical EPC data
Single glazing replaced with double or better glazing
Cavity wall insulation installed
More low energy lighting installed
Get a survey for this property
Level 2 HomeBuyer Report
We've checked 10 risk factors against the available data for this property and believe a Level 2 HomeBuyer Report could be a suitable option for you.
From £495 · Includes VAT
Planning history
12 Dyfed Avenue has no planning applications on record.
But the area is active
61 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Price for 12 Dyfed Avenue has grown more than fourfold since the 2004 starting point.
£153,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.9% per year over 21 years.
£140,000
Growth on file: 6.9% per year over 21 years.
Sales timeline
10 December 2025Most recent
£140,000
+35.3%over 3 years5 May 2022
£103,500
+204.4%over 17 years1 August 2004
£34,000
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
£150,00020 Dyfed Avenue, Townhill, Swansea, SA1 6NP
Sold Oct 2023
£115,00017 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
Years Held for 12 Dyfed Avenue lags the street by a wide margin.
Price per m²
£1,573
Street avg £1,411
Floor Area
89 m²
Street avg 74 m²
Habitable Rooms
5 rooms
Street avg 4 rooms
CO₂ Emissions
2.6 t/year
Street avg 3.1 t/year
Similar properties nearby
1 2, Flat 2, Brooklands Terrace
SA1 6BS
1 Bryn Y Clochydd, Townhill
SA1 6AW
1 Cadrawd Road, Mayhill
SA1 6UG
1 2, Flat 1, Brooklands Terrace
SA1 6BS
1 Campbell Street
SA1 6XY
1 2, Flat 4, Brooklands Terrace
SA1 6BS
1 2, Flat 1, St James Crescent
SA1 6DZ
1 2, Flat 5, Brooklands Terrace
SA1 6BS
The neighbourhood at a glance
Crime
580/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.







