1 Pant Yr Yn, Heol Smyrna, Llangain, Carmarthen, SA33 5BH
About 1 Pant Yr Yn
1 Pant Yr Yn is a four-bedroom detached house in Llangain, Carmarthen, Carmarthen (SA33 5BH). It has a recorded floor area of 132 m² (around 1421 sq ft), construction records dating it to 1967-1975 and council tax band A. The latest certificate (October 2025) shows a D (score 66), on the cusp of jumping into the C band. When first surveyed in June 2014 the rating was F, the property has climbed 2 bands since. Between certificates, wall efficiency went from Very Poor to Good, hot-water efficiency went from Very Poor to Average and lighting went from Average to Good. The recommended improvements would push it to C (score 72). Main heating runs on oil. Other recorded features include notable views and outbuildings.
Today's modelled estimate of £244,000 sits 243.7% above the 2018 sale of £71,000. One planning record on file: an extension approved in 2018. Past consents include an extension, meaningful when judging how the property has evolved. Most recent transfer: June 2018 at £71,000.
Know exactly what you're buying at 1 Pant Yr Yn
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
- Bedrooms4
- Bathrooms2
- EnsuiteYes
Outside
- Private gardenYes
- GarageYes
- OutbuildingsYes
- Notable viewsYes
Building
- Heating systemoil
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
Wall insulation improved
More low energy lighting installed
Planning history
- Oct 2018ExtensionFullIn report
Extension: Single storey
PROPOSED FIRST FLOOR EXTENSION TO BUNGALOW AND ROOF ALTERATIONS
- Documents
- 16 docs on file
- Reference
- W/37784
We flagged 1 thing worth checking at 1 Pant Yr Yn
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
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Sales history & valuation
1 Pant Yr Yn's estimated value is more than triple its earliest registered sale price (2018).
£244,000
Modelled from EPC, postcode comparables.
£71,000
Recorded with HM Land Registry.
Sales timeline
28 June 2018Most recent
£71,000
Median price across the last 2 sales in SA33 5BH: £96,500 (2017–2000).
Everything we know about 1 Pant Yr Yn, 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 Heol Smyrna homes
1 Pant Yr Yn outperforms the street on epc rating by a wide margin.
EPC Rating
66 (D)
Street avg 41 (E)
Floor Area
132 m²
Street avg 148 m²
CO₂ Emissions
5.0 t/year
Street avg 10.7 t/year
Habitable Rooms
6 rooms
Street avg 7 rooms
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The neighbourhood at a glance
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.9 km
Towy Lodge — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.