4a, Heol Dewi Sant, Penllergaer, Swansea, SA4 9BD
About 4a
4a is a semi-detached house in Penllergaer, Swansea, Swansea (SA4 9BD). It has a recorded floor area of 62 m² (around 667 sq ft), construction records dating it to 1950-1966 and council tax band A. At 62 m² this is the 5th smallest of 31 units on EPC record in the building, where floor areas span 30–138 m². The building's EPC ratings span F to C, with this unit at the top. On EPC score it ranks first in the building (78 versus a worst of 31). The latest certificate (April 2025) shows a C (score 78), near the top of the C band. The rating has held steady at C across 2 certificates since December 2008. Between certificates, wall efficiency went from Poor to Good, roof efficiency went from Average to Good and window efficiency went from Very Poor to Good; while hot-water efficiency dropped from Very Good to Good and lighting dropped from Very Good to Good.
Everything you need to know about 4a
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
4a's carbon output is low for the local stock.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency decreased
Single glazing replaced with double or better glazing
Wall insulation improved
Roof insulation improved
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Planning history
4a 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
4a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£139,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in SA4 9BD: £145,000 (2025–2019).
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
£87,50025 Heol Dewi Sant, Penllergaer, Swansea, SA4 9BD
Sold Dec 2019
£145,000
Versus other Heol Dewi Sant homes
On epc rating, 4a stands well clear of the street.
EPC Rating
78 (C)
Street avg 69 (D)
Floor Area
62 m²
Street avg 61 m²
CO₂ Emissions
1.4 t/year
Street avg 2.4 t/year
Habitable Rooms
4 rooms
Street avg 3 rooms
Everything you need to know about 4a
The true value, the hidden risks and the full sale history, in one report.
Pick your report · every report is £14.99
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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.