9 Heol Y Gelli, Penllergaer, Swansea, SA4 9BW
About 9 Heol Y Gelli
9 Heol Y Gelli is a three-bedroom semi-detached house in Penllergaer, Swansea, Swansea (SA4 9BW). It has a recorded floor area of 83 m² (around 893 sq ft), construction records dating it to 1967-1975 and council tax band B. The latest certificate (November 2014) shows an E (score 53), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 78), a 2-band jump. The latest certificate is from November 2014, so improvements made since then won't be reflected.
Across 2003–2020, sale prices on this property compounded at 4.3% per year. Today's modelled estimate of £161,000 sits 50.5% above the 2020 sale of £107,000. On a £-per-square-foot basis, the last sale (£120/sq ft) was about 22.8% above the typical sold price in the postcode. It lags the bulk of the postcode on energy efficiency (less efficient than 76% of similar EPCs). Last sale on file: £107,000 in June 2020.
What this property has
Inside
- Bedrooms3
Outside
- Private gardenRear
- DrivewayYes
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 12 Nov 2024
EPC Rating
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Planning history
9 Heol Y Gelli has no planning applications on record.
But the area is active
1 notable application nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Sale price has at least doubled since 2003.
£161,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.3% per year over 17 years.
£107,000
Growth on file: 4.3% per year over 17 years.
Sales timeline
25 June 2020Most recent
£107,000
+15.1%over 3 years1 September 2016
£93,000
+78.8%over 13 years24 April 2003
£52,000
Median price across the last 5 sales in SA4 9BW: £115,000 (2025–2018).
Nearby sales in SA4 9BW
31 Heol Y Gelli, Penllergaer, Swansea, SA4 9BW
Sold Feb 2025
£141,00035 Heol Y Gelli, Penllergaer, Swansea, SA4 9BW
Sold Nov 2024
£175,00049 Heol Y Gelli, Penllergaer, Swansea, SA4 9BW
Sold Nov 2020
£115,00018 Heol Y Gelli, Penllergaer, Swansea, SA4 9BW
Sold Mar 2019
£90,00029 Heol Y Gelli, Penllergaer, Swansea, SA4 9BW
Sold Jun 2018
£70,000
Versus other Heol Y Gelli homes
9 Heol Y Gelli is notably below the street on epc rating.
Price per m²
£1,289
Street avg £1,193
Floor Area
83 m²
Street avg 88 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
4.7 t/year
Street avg 4.4 t/year
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The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Llwyn-yr-Eos — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







