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 £123,000 is 29.5% above the 2023 sale price. On a £-per-square-foot basis, the last sale (£158/sq ft) was about 53.5% above the typical sold price in the postcode. Sold November 2023 for £95,000.
Energy performance
EPC Rating
Certificate validity
Valid until 17 July 2033
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.
£123,000
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: £114,500 (2026–2024).
Nearby sales in SA6 5EQ
22 Ffynnon Wen, Clydach, Swansea, SA6 5EQ
Sold Apr 2026
£93,00016 Ffynnon Wen, Clydach, Swansea, SA6 5EQ
Sold Jan 2026
£114,50057 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
£120,000
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 £1,364
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
210/mo
Falling 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.







