9 Dol Y Dderwen, Llangain, Carmarthen, SA33 5BE
About 9 Dol Y Dderwen
9 Dol Y Dderwen is a three-bedroom detached house in Llangain, Carmarthen, Carmarthen (SA33 5BE). It has a recorded floor area of 112 m² (around 1206 sq ft), construction records dating it to 1991-1995 and council tax band E. The latest certificate (November 2025) shows a C (score 70). When first surveyed in October 2009 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency dropped from Good to Average and lighting dropped from Good to Average.
Across 2005–2011, sale prices on this property compounded at -2% per year. Today's modelled estimate of £247,000 sits 62.5% above the 2011 sale of £152,000. On a £-per-square-foot basis, the last sale (£126/sq ft) was about 19.5% below the postcode norm. At 112 m² it's 25.8% larger than the typical home in the postcode (89 m² median across 52 EPCs). On the market in December 2011 and unlisted since — roughly 14 years.
Know exactly what you're buying at 9 Dol Y Dderwen
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Launch offer · save £5
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms3
Outside
- Private gardenYes
Building
- Heating systemlpg
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heat pump installed, significantly improving energy efficiency
Changed to a more efficient fuel source
Heating controls changed
High performance glazing installed
Wall insulation improved
Roof insulation improved
Floor insulation added or improved
More low energy lighting installed
Heating system changed
Fuel source changed
Heating controls upgraded for better temperature management
Hot water efficiency decreased
Changed to a more efficient fuel source
Hot water efficiency improved
Planning history
9 Dol Y Dderwen has no planning applications on record.
Notable planning nearby
4applications of note in the surrounding area
We flagged 1 thing worth checking at 9 Dol Y Dderwen
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
9 Dol Y Dderwen valuation sits well clear of the typical sold price in this postcode.
£247,000
Modelled from EPC, postcode comparables and a sale-price growth of -2.0% per year over 6 years.
£152,000
Growth on file: -2.0% per year over 6 years.
Sales timeline
15 December 2011Most recent
£152,000
-11.9%over 6 years31 August 2005
£172,500
Median price across the last 5 sales in SA33 5BE: £270,000 (2025–2022).
Nearby sales in SA33 5BE
25 Dol Y Dderwen, Llangain, Carmarthen, SA33 5BE
Sold Feb 2025
£240,00017 Dol Y Dderwen, Llangain, Carmarthen, SA33 5BE
Sold Sept 2024
£330,00053 Dol Y Dderwen, Llangain, Carmarthen, SA33 5BE
Sold Jul 2023
£327,0008 Dol Y Dderwen, Llangain, Carmarthen, SA33 5BE
Sold Feb 2023
£250,00043 Dol Y Dderwen, Llangain, Carmarthen, SA33 5BE
Sold Oct 2022
£345,000
Everything we know about 9 Dol Y Dderwen, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Larger development activity nearby

Versus other Dol Y Dderwen homes
9 Dol Y Dderwen is notably below the street on price per m².
Price per m²
£1,357
Street avg £2,018
Floor Area
112 m²
Street avg 95 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
3.8 t/year
Street avg 1.8 t/year
Similar properties nearby
1 Coedmor Avenue, Llangain
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1 Coomb Drive, Llangynog
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1 Cwrt Melin, Bancyfelin
SA33 5NB
1 Brondeg Cottages, Llansteffan
SA33 5JJ
1 Blaenwaun, Meidrim
SA33 5PQ
1 Innisfree Cottages, Llansteffan
SA33 5LW
1 Cwmclyd, Llansteffan
SA33 5EX
The neighbourhood at a glance
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Capel Smyrna — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.