6 Heol Y Dderwen, Llandysul, SA44 4RW
About 6 Heol Y Dderwen
6 Heol Y Dderwen is a three-bedroom semi-detached house in Llandysul (SA44 4RW). It has a recorded floor area of 91 m² (around 980 sq ft), construction records dating it to 1930-1949 and council tax band C. The latest certificate (October 2016) shows an F (score 34), near the bottom of the EPC scale. Earlier certificates rated it D (July 2016); the latest reading is 2 bands lower. Between certificates, wall efficiency dropped from Good to Poor and roof efficiency dropped from Good to Poor. The recommended improvements would lift it to A (score 99), a 5-band jump. Main heating runs on oil.
At 91 m² it's 15.2% larger than the typical home in the postcode (79 m² median across 17 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. 9 years since the last transfer (January 2017). Today's modelled estimate of £184,000 is 47.2% above the 2017 sale price.
Know exactly what you're buying at 6 Heol Y Dderwen
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms3
- Bathrooms1
Energy performance
6 Heol Y Dderwen sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
Planning history
6 Heol Y Dderwen has no planning applications on record.
The full report still covers planning activity across the surrounding area.
Sales history & valuation
6 Heol Y Dderwen's sale-price growth has lagged the wider UK trajectory across its history on file.
£184,000
Modelled from EPC, postcode comparables and a sale-price growth of 0.4% per year over 10 years.
£125,000
Growth on file: 0.4% per year over 10 years.
Sales timeline
31 January 2017Most recent
£125,000
+4.2%over 10 years25 October 2006
£120,000
Median price across the last 5 sales in SA44 4RW: £187,000 (2025–2022).
Nearby sales in SA44 4RW
7 Heol Y Dderwen, Llandysul, SA44 4RW
Sold Apr 2025
£180,00019 Heol Y Dderwen, Llandysul, SA44 4RW
Sold Sept 2024
£187,00017 Heol Y Dderwen, Llandysul, SA44 4RW
Sold Dec 2023
£205,00016 Heol Y Dderwen, Llandysul, SA44 4RW
Sold Nov 2023
£174,000Brynawel, Heol Y Dderwen, Llandysul, SA44 4RW
Sold Nov 2022
£270,000
Everything we know about 6 Heol Y Dderwen, 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 Y Dderwen homes
Habitable Rooms for 6 Heol Y Dderwen lags the street by a wide margin.
Price per m²
£1,374
Street avg £1,977
Floor Area
91 m²
Street avg 81 m²
Habitable Rooms
2 rooms
Street avg 5 rooms
CO₂ Emissions
8.8 t/year
Street avg 5.3 t/year
Similar properties nearby
1 Heol Y Merwydd, Horeb
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1 Heol Y Gilfach
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1 Lewis Street, Pontwelly
SA44 4AL
1 Fair View, Seion Hill
SA44 4DA
1 Clifton Terrace
SA44 4BY
1 Barley Mow
SA44 4DE
1 Frongoch, Gorrig Road, Pentrellwyn
SA44 4LE
The neighbourhood at a glance
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Tan y Bryn — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.