17 Heol Tredeg, Upper Cwmtwrch, Swansea, SA9 2XD
About 17 Heol Tredeg
17 Heol Tredeg is a four-bedroom semi-detached house in Upper Cwmtwrch, Swansea, Swansea (SA9 2XD). It has a recorded floor area of 95 m² (around 1023 sq ft), construction records dating it to before 1900 and council tax band B. The latest certificate (June 2013) shows an E (score 53), well below the UK norm with real room to improve. The recommended improvements would lift it to B (score 85), a 3-band jump. Main heating runs on oil. The latest certificate is from June 2013, so improvements made since then won't be reflected.
Across 2001–2018, sale prices on this property compounded at 6.7% per year. Today's modelled estimate of £189,000 sits 76.6% above the 2018 sale of £107,000. Most recent transfer: June 2018 at £107,000.
Know exactly what you're buying at 17 Heol Tredeg
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
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Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms4
- Bathrooms2
Energy performance
17 Heol Tredeg's carbon output runs well above what efficient homes in the postcode produce.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 19 Jun 2023
EPC Rating
Planning history
17 Heol Tredeg has no planning applications on record.
The full report still covers planning activity across the surrounding area.
Sales history & valuation
17 Heol Tredeg has more than doubled in price since the earliest registered sale in 2001.
£189,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.7% per year over 17 years.
£107,000
Growth on file: 6.7% per year over 17 years.
Sales timeline
28 June 2018Most recent
£107,000
+197.6%over 16 years30 August 2001
£35,950
Median price across the last 5 sales in SA9 2XD: £177,500 (2025–2022).
Nearby sales in SA9 2XD
18 Heol Tredeg, Upper Cwmtwrch, Swansea, SA9 2XD
Sold Jan 2025
£80,00015 Heol Tredeg, Upper Cwmtwrch, Swansea, SA9 2XD
Sold Oct 2024
£198,00012 Heol Tredeg, Upper Cwmtwrch, Swansea, SA9 2XD
Sold Apr 2024
£407,00010 Heol Tredeg, Upper Cwmtwrch, Swansea, SA9 2XD
Sold Oct 2023
£177,50011 Heol Tredeg, Upper Cwmtwrch, Swansea, SA9 2XD
Sold Mar 2022
£162,000
Everything we know about 17 Heol Tredeg, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
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- Will it hold its value?

Versus other Heol Tredeg homes
17 Heol Tredeg outperforms the street on habitable rooms by a wide margin.
Price per m²
£1,126
Street avg £1,494
Floor Area
95 m²
Street avg 104 m²
Habitable Rooms
7 rooms
Street avg 5 rooms
CO₂ Emissions
6.0 t/year
Street avg 8.6 t/year
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The neighbourhood at a glance
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
New Tredegar Arms — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.