21 Lon Cowin, Bancyfelin, Carmarthen, SA33 5NF
About 21 Lon Cowin
21 Lon Cowin is a three-bedroom semi-detached house in Bancyfelin, Carmarthen, Carmarthen (SA33 5NF). It has a recorded floor area of 95 m² (around 1023 sq ft), construction records dating it to 1950-1966 and council tax band B. The latest certificate (July 2022) shows an F (score 31), near the bottom of the EPC scale. The recommended improvements would lift it to C (score 80), a 3-band jump. Main heating runs on electricity.
At 95 m² the property is well over the postcode median (71 m² across 14 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 86% of similar EPCs). Today's modelled estimate of £185,000 is 23.3% above the 2022 sale price. On a £-per-square-foot basis, the last sale (£147/sq ft) was about 44.8% above the typical sold price in the postcode. Most recent transfer: November 2022 at £150,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at 21 Lon Cowin
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
- Bathrooms1
- Dining roomYes
- Utility roomYes
- StudyYes
- FireplaceYes
Outside
- Private gardenrear
Energy performance
21 Lon Cowin's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Planning history
21 Lon Cowin has no planning applications on record.
Notable planning nearby
4applications of note in the surrounding area
We flagged 1 thing worth checking at 21 Lon Cowin
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
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£185,000
Modelled from EPC, postcode comparables.
£150,000
Recorded with HM Land Registry.
Sales timeline
28 November 2022Most recent
£150,000
Median price across the last 5 sales in SA33 5NF: £87,500 (2025–2020).
Nearby sales in SA33 5NF
2a, Lon Cowin, Bancyfelin, Carmarthen, SA33 5NF
Sold Aug 2025
£87,50010 Lon Cowin, Bancyfelin, Carmarthen, SA33 5NF
Sold Oct 2024
£170,0004 Lon Cowin, Bancyfelin, Carmarthen, SA33 5NF
Sold May 2022
£83,5004a, Lon Cowin, Bancyfelin, Carmarthen, SA33 5NF
Sold Jul 2020
£74,00022 Lon Cowin, Bancyfelin, Carmarthen, SA33 5NF
Sold Jan 2018
£97,000
Everything we know about 21 Lon Cowin, 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 Lon Cowin homes
CO₂ Emissions for 21 Lon Cowin lags the street by a wide margin.
EPC Rating
31 (F)
Street avg 41 (E)
Floor Area
95 m²
Street avg 101 m²
CO₂ Emissions
10.0 t/year
Street avg 7.0 t/year
Habitable Rooms
5 rooms
Street avg 5 rooms
Similar properties nearby
1 Coedmor Avenue, Llangain
SA33 5AF
1 High Street, Bancyfelin
SA33 5ND
1 Bryn Cynog, Llangynog
SA33 5BT
1 Isfryn, Llangynog
SA33 5BT
1 Cae Ffynnon, Bancyfelin
SA33 5DQ
1 Gorsgoch, Llangynog
SA33 5BP
1 Ffordd Cottages, Johnstown
SA33 5BL
1 Llangynog Farm Cottages, Llangynog
SA33 5HS
The neighbourhood at a glance
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Werndale Hospital — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.