18 Heol Y Deri, Cwmrhydyceirw, Swansea, SA6 6JH
About 18 Heol Y Deri
18 Heol Y Deri is a semi-detached house in Cwmrhydyceirw, Swansea, Swansea (SA6 6JH). It has a recorded floor area of 56 m² (around 603 sq ft), construction records dating it to 1950-1966 and council tax band A. The latest certificate (October 2024) shows a C (score 70). When first surveyed in November 2013 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency went from Very Poor to Good and lighting went from Poor to Very Good. The recommended improvements would push it to B (score 88).
At 56 m² it's 24.3% smaller than the typical home in the postcode (74 m² median across 28 EPCs). Its energy rating outperforms most of the postcode (better than 86% of similar EPCs).
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Roof insulation improved
More low energy lighting installed
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Planning history
18 Heol Y Deri has no planning applications on record.
But the area is active
5 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
18 Heol Y Deri has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£122,000
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 SA6 6JH: £102,500 (2025–2018).
Nearby sales in SA6 6JH
40 Heol Y Deri, Cwmrhydyceirw, Swansea, SA6 6JH
Sold Oct 2025
£148,0009 Heol Y Deri, Cwmrhydyceirw, Swansea, SA6 6JH
Sold Jul 2025
£140,00033 Heol Y Deri, Cwmrhydyceirw, Swansea, SA6 6JH
Sold Feb 2025
£95,00019 Heol Y Deri, Cwmrhydyceirw, Swansea, SA6 6JH
Sold Aug 2021
£102,50010 Heol Y Deri, Cwmrhydyceirw, Swansea, SA6 6JH
Sold Nov 2017
£110,000
Versus other Heol Y Deri homes
On floor area, 18 Heol Y Deri runs well behind the street norm.
EPC Rating
70 (C)
Street avg 60 (D)
Floor Area
56 m²
Street avg 75 m²
CO₂ Emissions
2.0 t/year
Street avg 3.7 t/year
Habitable Rooms
3 rooms
Street avg 4 rooms
Similar properties nearby
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1 Bro Dawel, Llangyfelach
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1 Clos Cadno, Cwmrhydyceirw
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1 Bryn Glas, Llangyfelach
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1 Clos Waun Wen, Llangyfelach
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1 Cae Crug, Llangyfelach
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1 Can Yr Aderyn, Morriston
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The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Heol Fedw — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







