17 Ffynnon Wen, Clydach, Swansea, SA6 5EQ
About 17 Ffynnon Wen
17 Ffynnon Wen is a mid-terrace house in Clydach, Swansea, Swansea (SA6 5EQ). It has a recorded floor area of 56 m² (around 603 sq ft), construction records dating it to 1967-1975 and council tax band B. The latest certificate (July 2023) shows a C (score 69), just inside the C band. When first surveyed in March 2020 the rating was D, the property has climbed 1 band since. Between certificates, window efficiency went from Average to Good. The recommended improvements would push it to B (score 85).
Across 2020–2023, sale prices on this property compounded at 12.2% per year. Today's modelled estimate of £121,000 is 27.4% above the 2023 sale price. On a £-per-square-foot basis, the last sale (£158/sq ft) was about 55.1% above the typical sold price in the postcode. Sold November 2023 for £95,000.
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Window efficiency improved
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property has been extended more than once, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
17 Ffynnon Wen has no planning applications on record.
But the area is active
2 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
17 Ffynnon Wen valuation sits well clear of the typical sold price in this postcode.
£121,000
Modelled from EPC, postcode comparables and a sale-price growth of 12.2% per year over 3 years.
£95,000
Growth on file: 12.2% per year over 3 years.
Sales timeline
15 November 2023Most recent
£95,000
+48.4%over 3 years8 June 2020
£64,000
Median price across the last 5 sales in SA6 5EQ: £99,750 (2025–2023).
Nearby sales in SA6 5EQ
57 Ffynnon Wen, Clydach, Swansea, SA6 5EQ
Sold Apr 2025
£99,75036 Ffynnon Wen, Clydach, Swansea, SA6 5EQ
Sold Dec 2024
£120,00050 Ffynnon Wen, Clydach, Swansea, SA6 5EQ
Sold Jul 2024
£120,00039 Ffynnon Wen, Clydach, Swansea, SA6 5EQ
Sold Mar 2024
£92,00032 Ffynnon Wen, Clydach, Swansea, SA6 5EQ
Sold Nov 2023
£95,000
Versus other Ffynnon Wen homes
Years Held for 17 Ffynnon Wen lags the street by a wide margin.
Price per m²
£1,696
Street avg £1,343
Floor Area
56 m²
Street avg 56 m²
Habitable Rooms
4 rooms
Street avg 4 rooms
CO₂ Emissions
2.2 t/year
Street avg 1.9 t/year
Similar properties nearby
The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Graig Felen School — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







