25 Heol Dewi Sant, Penllergaer, Swansea, SA4 9BD
About 25 Heol Dewi Sant
25 Heol Dewi Sant is a three-bedroom semi-detached house in Penllergaer, Swansea, Swansea (SA4 9BD). It has a recorded floor area of 97 m² (around 1044 sq ft), construction records dating it to 1950-1966 and council tax band B. The latest certificate (May 2024) shows a C (score 73). The rating has held steady at C across 2 certificates since June 2012. Between certificates, roof efficiency went from Good to Very Good and lighting went from Poor to Very Good; while wall efficiency dropped from Good to Average. The recommended improvements would push it to B (score 85). Other recorded features include a conservatory.
At 97 m² the property is well over the postcode median (65 m² across 30 EPCs), placing it in the larger end of the local stock. Across 2001–2019, sale prices on this property compounded at 7.1% per year. Today's modelled estimate of £201,000 is 38.6% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£139/sq ft) was about 70.6% above the typical sold price in the postcode. Most recent transfer: December 2019 at £145,000.
What this property has
Inside
- Bedrooms3
- Bathrooms1
- Dining roomYes
- ConservatoryYes
Outside
- Private gardenRear
- ParkingOff road
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Loft insulation upgraded to recommended levels
More low energy lighting installed
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Planning history
25 Heol Dewi Sant 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 grown by over 3x since 2001.
£201,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.1% per year over 18 years.
£145,000
Growth on file: 7.1% per year over 18 years.
Sales timeline
12 December 2019Most recent
£145,000
+28.3%over 6 years18 April 2013
£113,000
+169.4%over 11 years4 October 2001
£41,950
Median price across the last 5 sales in SA4 9BD: £95,000 (2025–2016).
Nearby sales in SA4 9BD
19 Heol Dewi Sant, Penllergaer, Swansea, SA4 9BD
Sold Oct 2025
£220,00011 Heol Dewi Sant, Penllergaer, Swansea, SA4 9BD
Sold Sept 2025
£95,0007 Heol Dewi Sant, Penllergaer, Swansea, SA4 9BD
Sold Oct 2024
£200,00028 Heol Dewi Sant, Penllergaer, Swansea, SA4 9BD
Sold Sept 2024
£87,50020 Heol Dewi Sant, Penllergaer, Swansea, SA4 9BD
Sold Feb 2016
£66,000
Versus other Heol Dewi Sant homes
25 Heol Dewi Sant outperforms the street on epc rating by a wide margin.
Price per m²
£1,495
Street avg £1,193
Floor Area
97 m²
Street avg 95 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
2.8 t/year
Street avg 3.6 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
Heol Dewi Sant — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







