101a, Heol Gleien, Upper Cwmtwrch, Swansea, SA9 2UF
About 101a
101a is a semi-detached house in Upper Cwmtwrch, Swansea, Swansea (SA9 2UF). It has a recorded floor area of 85 m² (around 915 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (September 2015) shows an E (score 45), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 77), a 2-band jump. Main heating runs on oil. The latest certificate is from September 2015, so improvements made since then won't be reflected.
Held since March 1997 — that's 29 years off the open market, well above the local norm. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £143,000 sits 472% above the 1997 sale of £25,000. On a £-per-square-foot basis, the last sale (£27/sq ft) was about 63.8% below the postcode norm.
Know exactly what you're buying at 101a
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
Energy performance
101a'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This certificate is over 10 years old and is no longer valid.Expired 16 Sept 2025
EPC Rating
Planning history
101a has no planning applications on record.
The full report still covers planning activity across the surrounding area.
Sales history & valuation
101a's modelled value sits at over four times its earliest registered sale price (1997).
£143,000
Modelled from EPC, postcode comparables.
£25,000
Recorded with HM Land Registry.
Sales timeline
21 March 1997Most recent
£25,000
Median price across the last 5 sales in SA9 2UF: £108,000 (2025–2016).
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
£108,00089 Heol Gleien, Upper Cwmtwrch, Swansea, SA9 2UF
Sold Jun 2018
£94,00069 Heol Gleien, Upper Cwmtwrch, Swansea, SA9 2UF
Sold Oct 2014
£80,000
Everything we know about 101a, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?
Versus other Heol Gleien homes
Price per m² for 101a lags the street by a wide margin.
Price per m²
£294
Street avg £1,326
Floor Area
85 m²
Street avg 93 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
6.8 t/year
Street avg 7.9 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.