89 Heol Gleien, Upper Cwmtwrch, Swansea, SA9 2UF
About 89 Heol Gleien
89 Heol Gleien is a two-bedroom mid-terrace house in Upper Cwmtwrch, Swansea, Swansea (SA9 2UF). It has a recorded floor area of 107 m² (around 1152 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (September 2021) shows an E (score 40), well below the UK norm with real room to improve. When first surveyed in March 2015 the rating was F, the property has climbed 1 band since. Between certificates, lighting went from Average to Very Good; while roof efficiency dropped from Good to Average and window efficiency dropped from Good to Average. The recommended improvements would lift it to A (score 94), a 4-band jump. Main heating runs on dual fuel.
Across 2007–2018, sale prices on this property compounded at 1.5% per year. Today's modelled estimate of £148,000 sits 57.4% above the 2018 sale of £94,000. At 107 m² it's 25.9% larger than the typical home in the postcode (85 m² median across 8 EPCs). Most recent transfer: June 2018 at £94,000.
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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
- Bedrooms2
Energy performance
89 Heol Gleien's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Changed to a more efficient fuel source
More low energy lighting installed
Planning history
89 Heol Gleien has no planning applications on record.
The full report still covers planning activity across the surrounding area.
Sales history & valuation
89 Heol Gleien's sale-price growth has lagged the wider UK trajectory across its history on file.
£148,000
Modelled from EPC, postcode comparables and a sale-price growth of 1.5% per year over 11 years.
£94,000
Growth on file: 1.5% per year over 11 years.
Sales timeline
14 June 2018Most recent
£94,000
+17.5%over 2 years6 August 2015
£80,000
24 May 2007
£79,950
Median price across the last 5 sales in SA9 2UF: £108,000 (2025–2014).
Nearby sales in SA9 2UF
97 Heol Gleien, Upper Cwmtwrch, Swansea, SA9 2UF
Sold Aug 2025
£175,00075 Heol Gleien, Upper Cwmtwrch, Swansea, SA9 2UF
Sold Dec 2024
£160,000105 Heol Gleien, Upper Cwmtwrch, Swansea, SA9 2UF
Sold Dec 2018
£108,00069 Heol Gleien, Upper Cwmtwrch, Swansea, SA9 2UF
Sold Oct 2014
£80,00085 Heol Gleien, Upper Cwmtwrch, Swansea, SA9 2UF
Sold Oct 2006
£144,000
Everything we know about 89 Heol Gleien, 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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- Is something wrong with it?
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- Will it hold its value?

Versus other Heol Gleien homes
CO₂ Emissions for 89 Heol Gleien lags the street by a wide margin.
Price per m²
£879
Street avg £1,228
Floor Area
107 m²
Street avg 91 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
9.2 t/year
Street avg 7.6 t/year
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The neighbourhood at a glance
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Heol Gleien — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.